Xrandr not detecting external monitor When i open nvidia-settings, the each of those either just calls randr, or one of the scripts, which also arranges my desktops using i3-msg -- for example, when I join a zoom meeting, it lowers my primary monitor's resolution to 1080p and pushes all virtual desktops to my Need to switch to desktop mode and set the display configuration from there. 'Here is a bit of demystification from wikipedia: eDP1 stands for embedded display port. When I ran xrandr I can clearly see that there is only one In this configuration, using i915 driver, there is no other way than running xrandr -q to know if a monitor is plugged in or not. Modified 4 years, 3 months ago. Viewed 1k times xrandr doesn't correctly configure GeChic 1503H external HDMI monitor. 2, which is a loong time now. Running on an arch machine, and I have 2 monitors connected to my laptop via a USB-C hub. But I use my external monitor in portrait. 2. 8 60. And then just turn your principal monitor first (principal monitor is defined on xrandr or the one that have the topbar). 9 48. Try using any other word in place of none: when mounting a virtual filesystem like debugfs, the device name is not needed and is just a placeholder to satisfy the mount command. I rebooted with Windows and my external for anyone curious, you can rewake the monitor using xrandr to send a command. 831. The dock works great with my laptop, but the Deck doesn't seem to like outputting video. 70GHz × 8 Graphics: Quadro M2000M/PCIe/SSE2 Output of xrandr : Whenever I connect to an external display on Arch Linux, it doesn't display anything. 2 640x480 59. Display Settings Lost after a few hours of Lock Screen. I've been fiddling with my display settings a bit because of a different problem and after a reboot, the second monitor says "no signal", and my double-wide desktop has shrunk to a single If you have some part of your second display shown on the first display after fallowing the answer above, you should re-arrange display layout from displays settings. I checked my monitor and cables, and they are fine (other latptops with MacOS and Windows connect fine). For example running from the gnome control centre the display applet then 'detect' My goal is to make xrandr detect my HDMI connection so I can use my external monitor but it looks like my Nvidia driver isn't initializing properly: WARNING: Unable to locate/open X This does not change the fact that xrandr can't find my monitor, but it must at least detect the thing. and it seems xrandr can no longer detect my second monitor. 00 800x600 I'm trying to plug an external hdmi monitor to my laptop, but it's not detected System: Ubuntu 14. I can have *only* external monitor to work if I run nvidia-xconfig, it creates /etc/X11/xorg. 04, XFCE 4. It can not detect DP when I use "xrand -q" to query . The monitor is detected (xrandr gives the following:) xrandr --listmonitors Monitors: 2 0: +VGA-1 You can get the monitors identifiers by typing xrandr into a terminal; I had to add "-1" at the end of the identifiers, i don't know why that is. I know the setup (cable, adapter, monitor) are all working because I can connect it on a Notice how there's no Display Port in xrandr: $ xrandr Screen 0: minimum 320 x 200, current 1600 x 900, maximum 16384 x 16384 eDP-1 connected The problem is that when I plug in my ViewSonic external screen through my hdmi port, the laptop doesn't detect it. After installing the Nvidia driver, I now see some modes listed for eDP1 when running xrandr, but they are not correct for my display. Select [Sound Control Panel] ③. 0*+ 40. 1 (Electro Ara). 0 The way i eventually solved it was by first running the game on the deck (without the external monitor connected). $ xrandr Screen 0: minimum 8 x 8, current 3840 x 1080, maximum 32767 x 32767 eDP1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 309mm x 174mm 1920x1080 60. Also, the other GPU might use a I am using the i3 window manager on a laptop with a broken internal LCD display. (sudo) v: 5. Then, i enabled force full composite pipeline on nvidia settings to fix screen tearing. And I will take a look at the nvidia-xconfig README, thanks. Screen 0: minimum 320 x 200, current [SOLVED] External monitor not detected under Wayland (KDE Plasma (solution: some kernel flag relevant when using nvidia proprietary drivers) Here it happens across all machines using wayland. 04 appear to have introduced instabilities with the old driver. I use a Dell external monitor connected via HDMI to my laptop. 0-20 generic Nvidia version My Laptop is Assu fx505dt ryzen 7, gtx 1650, 8gb ram 2666hz with 120hz refresh rate Here's the output of "xrandr" Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384 eDP Removing /etc/X11/xorg. by default, but without this I could not enable or use the device in xrandr or arandr. The DP-0 shown in xrandr etc. Change the display resolution to However, I am not able to output on an external monitor because xrandr does not detect my monitor. When they are connected, the system detects the new monitor, presenting options like duplicating desktop or expanding desktop. Xrandr, nor any other program, is detecting my second monitor; as in, xrandr acts like the second monitor doesn't even exist when it's connected. I'll show my current xrandr output for reference at the end of the question. System: Host: zipnevid-thinkpad Kernel: 4. Try this (change execute xrandr --newmode "3440x1440_100. Click the Display page on the right side. The problem I have is this: I can't wake up the external monitor with xrandr after it's gone to sleep, steps to reproduce: 1. This helps correct some issues where a That xrandr does not list your device often signifies a problem with the driver. xrandr will also give you the available resolutions. I think it could be due to the fact that both the monitor and the graphics card that the monitor is connected to are fairly old, and uses a VGA adapter. Setup: 1 4k monitor connected through DP<->USB-C, another through HDMI <-> Thunderbolt hub <-> Mac. This is my xrender output: Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192 eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 194mm 1920x1080 60. Since upgrading to Fedora 31 both laptops cannot detect an external display within Gnome display settings or xrandr. 16), but no good. I connected my Ubuntu computer to another monitor and get same The external monitor is not recognized after sleep/lock mode. This is a snipped from my xorg log. kde and gnome. Computer recognizes that something is plugged in to the HDMI output port. However, Xrandr does not show my second monitor on intel gpu. xrandr and see if the displays show up. The only program that seems to know about the screen is nvidia-settings, which under the GPU says HDMI-1-0 - (ViewSonic VA2405 # Put your normal screen in 1024x768 xrandr --output eDP1 --mode 1024x768 # Add a mode for display port xrandr --addmode DP1 1024x768 # Clone the normal screen to the display port xrandr --output DP1 --mode 1024x768 --same-as eDP1 For me it solve the non detection problem of some external projectors when there is a box that choose automatically I have LG 27UL500-W external display, which supports resolutions up to 4K(3840 x 2160) and is connected with a 4k capable HDMI cable. I am using an HP ZBook 15 G6 laptop, with "NVIDIA Corporation TU106GLM [Quadro RTX 3000 Mobile / Max-Q]" GPU and nvidia-driver-435 installed. Note: An appropriate adapter may be needed for connecting external devices. Type and search [Sound settings] in the Windows search bar ①, then click [Open] ②. xrandr --listmonitors Monitors: 1 0: +*DP-0 1920/531x1080/299+0+0 DP-0. Even when plugged in, the "detect displays" button within the default settings app doesn't do anything. 99* 59. KDE Plasma display settings only detects my laptop screen, xrandr doesn't seem to detect the hdmi port. I am unsure about the etiquette here, but I'll still mark the problem as solved. Screen 0: minimum 16 x 16, current 1920 x 1080 As you can see below, xrandr does not detect any hdmi/displayport inputs, thus my external monitors don't work. The problem I did a fresh install of Debian 11 (Debian 5. Ask Question Asked 3 years, 2 months ago. I have no idea why this works but it has thank you again for your help I followed the instructions for KDE, which I have, and now optimus-manager is working without any conflict, and i switched it to hybrid-mode and reboot; but still i don’t have HDMI on xrandr and the monitor says “no signal” External monitor via HDMI will not display; xrandr says HDMI disconnected; NVIDIA GPU I had Ubuntu 22. If your Mac still doesn’t recognize the attached display, try any of the following: Unplug the display from your Mac, then plug it back in. xrandr is not detecting the display: If I quit XOrg and go back to the terminal, the terminal appears on both the internal laptop monitor and the external monitor, so It appears that the kernel driver itself is seeing the monitor fine, I just can't figure out how to get Xorg to detect it or force it to reprobe and find it. I recently installed Debian 10 and I can not get my second monitor work. I am running Ubuntu 20. My "Display" settings panel enables "Configure new displays when connected. I can do it manually using the hotkey, but I'm just wondering wether this is possible as well. 01 1680x1050 59. Reason is in xrandr the number after plus sign is not refreshed after changing res from 960 to 1920: eg: 2560x1080+960+0 to 2560x1080+1920+0 – Issue/Bug Description: The external monitors are sometimes not detected when booting up. When I tried to connect my external monitor via HDMI cable the monitor was not detecting any signal, although it was working fine with the previous Ubuntu 18. Xubuntu 18. Intrestingly, in xorg log, the second monitor gets detected. 162-1 (2023-01-21) x86_64 GNU/Linux) on my Omen 15 (15-en0xxx) laptop. When I connect the monitor with it xrandr does not recognize it. Try changing the cable connecting the external Hi there: I am running Ubuntu on my macbook with Intel/Nvidia Optimus. Click on System. Running xrandr would only show the internal laptop display. The thinkpad is running 24. 9 VGA1 disconnected (normal left inverted right x axis y axis) I want to automatically execute xrandr to enable the external monitor and disable my laptop screen as soon as the cable is plugged in, and the other way around when it's unplugged. ) but to no avail. 96*+ '-f' will # be ignored. Open tianrui-wei opened this issue May 16, 2023 · 8 comments Open So, following command turns the second monitor black showing 'no signal': xrandr --output DP1 --mode 1920x1080_60. That’s rather odd, the monitor is detected but not used. NoEcoModeOverride=false # The Driver used by Bumblebee server. Hi Swarchden! I do have a very similar problem with alder Check the audio settings for the external monitor. Hey guys, couple of background check I have Pop os 5. If this value is not set (or empty), # auto-detection is If the external monitor can't be detected by using xrandr --auto, or even by booting to different OS, reboot Ubuntu using a previous kernel. My current window manager - xfce - is not very good at responding to these Laptop is an Alienware M18 R2 (dual GTX675M) which is working with dual external monitors when using the Nvidia 390 (latest) driver. e. 2-110308a-115935C-ATI External monitor xrandr --newmode "3840x2160" 297. [xiuxia@Mars ~]$ xrandr Screen 0: minimum 320 x 200, current 3520 x 1080, maximum 8192 x 8192 LVDS1 connected primary 1600x900+0+0 (normal left inverted right x axis y axis) 310mm x 174mm 1600x900 60. When I try to reposition my monitor in display settings or unplug the monitor, pop os crashes, and I My 2 laptops running either Bumblebee or more recently Nvidia Prime in X from rpm Fusion were able to detect and display external monitors fine through either the VGA or HDMI ports. I tried to debug the issue, but I couldn't. The screen does mirror on my monitor but at a 1366×76 When I logged back in one monitor was not detected anymore. The monitor gets no signal from the HDMI port, and Hello! I have recently bought an USB-C to DP adapter in order to connect my external monitor with my laptop (which hasn't a DP output only a usb-c one (supporting displayport of course)). The other times it just reconnects in joined mode. 8 on Jan 2, 2020. When I use the HDMI cable without the adapter (i. [Solved] Xrandr gives the wrong output, external monitor not detected. But only this laptop cannot detect my external monitor. You could check this using xrandr. So is xrandr basically becoming extinct? Thanks again for you reply. Will not detect external monitor. xrandr output: Code: FPRAlienwareM17 ~ # xrandr Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767 Check That Everything Has Power You should ensure that everything is connected to a power source and turned on. You probably want to do that anyway because this Everything for the most part works fine, but I cannot get it to connect to an external monitor. xrandr --addmode <your_connection_type> "preferred resolution" There are a few things remaining that I'm currently struggling to solve, one of which is my external monitor (connected via HDMI) not being detected under Wayland. You will find that if there is something wrong with the driver that there is a display, but that it is unclaimed: *-display UNCLAIMED The reason why your driver isn't working can be manifold. If you know some CLI basics you can also use xrandr. Here is my xrandr output (type xrandr in terminal): eDP-3. openSUSE 11. MSI Laptop with LG monitor intel + nvidia OS: Ubuntu 22. If you are looking for a way to script this behavior so you can easily swap automatically when, for My goal is to make xrandr detect my HDMI connection so I can use my external monitor but it looks like my Nvidia driver isn't initializing properly: sudo nvidia-xconfig WARNING: Unable to locate/open X configuration file. Use the name of the output. I've used to connect my second monitor using type-c displayport, but it seems not to detect it anymore. 99*+ 2048x1536 I had a similar problem on an Ubuntu 12. After reboot, the external display attached to my laptop is not being detected in xrandr, or by display configuration settings in KDE and Gnome. Wayland, only integrated monitor is detected. But when I open the nvidia-settings Hi, after my laptop had automatically shutdown due to low power I haven't been able to connect to external monitor. Any help would be appreciated. xrandr didn't detect the external monitor. So first you need to find the the exact monitors and resolution by using the following command: xrandr -q. For me that was xrandr --output DP-1-2 --auto – physincubus. However, the laptop display is still blank. 00*+ 40. now my laptop is blank screen my mouse can go over there, what’s the problem? (instead of being black screen), but still xrandr can’t detect my laptop Here are related Xorg. but nvidia-settings shows my second monitor but says it is xrandr NOT Detecting My Laptop's Internal Display? But anyway, I was just curious to know why it was only showing the "external" monitor and its resolution and not my Laptop's monitor as well. The laptop screen works fine but xrandr doesn't detect my monitor. Secure boot is disabled in BIOS. I'm on Ubuntu 18. I had update to nvidia-dkms 440. I looked at xandr before and after connecting the HDMI cable and it's the same in both cases: $ xrandr Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767 eDP1 connected primary 1920x1080+0 It has worked smoothly for months, but since today it is not recognized anymore. 0. Modified 3 years, Xubuntu 18. 0 59. I commented on a ‘dead’ thread of the same topic and was summarily shutdown by a gatekeeper with zero troubleshooting advice. I have tried few things but stuck. The monitor in question is a 2560x1080p LG Ultrawide. conf, but then internal display does not work; it's like I can have only internal display or external display with nvidia-xconfig. New X configuration file written to '/etc/X11/xorg. 17 xrandr does not detect monitors. 01*+ 60. To detect an external monitor manually on Windows 11, use these steps: Open Settings. Display is coming up only on external and there is black screen on main one. conf and rebooting resulted in the built-in monitor of my laptop working again, but now the external monitor is again not working and not detected by debian settings (but, as before, visible in nvidia Hi - I'm on Arch and just performed an update and now my external monitor is not recognized on the HDMI port. 0 800x600 60. 04; lshw -c video gives the following output: *-display To be exact the problem is that xrandr is not detecting any monitor on initial startup of the pc. I'm trying to connect an external monitor using the USB-C port and an adapter on my Asus laptop, using Ubuntu. conf' When you wake up, turn off the monitors. My second monitor has suddenly stopped working after a reboot. BTW I am sorry I don't know how to make the boxes for code in this form. with my TV) it works perfectly. eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 381mm x 214mm 1920x1080 60. 04 xrandr: HDMI-1-0 . I read in a thread on Archlinux that bumblebee it may help to use two monitors at the same time, but I want to know if there is Xrandr output below: Screen 0: minimum 320 x 200, current 1366 x 768, maximum 32767 x 32767 LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm 1366x768 60. 1. I have unplugged the monitor from HDMI, since its working but I plugged in the other one into USB C but its not detecting, its only detecting the laptop display(eDP): Neither xrandr can't detect second monitor at highes resolution nor permit adding. The screen is OK (tested with another laptop) Screen not detected in the All settings > Screen display GUI (it used to work) Screen not detected via xrandr; Adapter is detected via lsusb (see below) Using Ubuntu 16. 44. I unplug one or both external monitors and plug then in again later. On Windows I can set the resolution of my external monitor to 1920x1080 fine, but on Ubuntu the maximum seems to be 1600x900. I then live booted from ubuntu as well as void, and in both cases xrandr detected monitor and the output was there. Also i am using usb for the display. 00 + 59. Recently got an external monitor and tried hooking it up to my computer using an HDMI to VGA adapter. It is mean external monitor does not work. If I check prime-select query I get nvidia. Hot Network Questions How to (physically) wire extremely tiny stepper motor? Force external monitor detection. 04 with an OpenBox desktop and an nVidia 1060, using the nVidia 396 driver. 38 vant@arion:~$ xrandr --prop xrandr: Failed to get size of gamma for output default Screen 0: minimum 1920 x 1080, current 1920 x 1080 But DP does not work well. Hardware works on windows and with live USB of f38. This issue is present on both the HDMI port of my laptop and when using the Thunderbolt-to-DVI adapter I used to use when I had windows installed. The situation is further complicated by the fact that some laptop models have all external display connectors hardwired to the onboard GPU the same way the I could enable it via the "Re-Detect display devices" Shortcut - <MOD>+p or <Winkey>+p. Install appropriate nvidia driver. 0. same hardware. Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767 eDP1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 380mm x 210mm 1920x1080 The issue: Now it is not detecting my main laptop monitor while the external works fine. 01 59. xrandr doesn't show the DP port anymore: Screen 0: minimum 8 x 8, current 1600 x 900, maximum 16384 x 16384 LVDS-1-1 connected primary 1600x900+0+0 (normal left inverted right x axis y axis) 310mm x 174mm 1600x900 60. 95 59. 94 I dual boot my computer with Windows and it has no problem detecting my monitor as normal, which is really strange. I have to my knowledge installed it according to the arch guide on displaylink, and it was working up until today. However, after selecting any option, the monitor stops working, not even Hi it is my first steps with Manjaro + amd-nvidia combination and I faced following problem: When I plug in my two external monitors I can see in the ’Display configuration’ that they are detected, but if I click ’enable’ checkbox The problem is that when I plug in my second monitor, Debian does not detect this monitor at all and nothing is displayed on this monitor. It only has one hdmi connector for external monitors. is just a dummy connected to nothing. The only problem at the moment is that the display connected to the hdmi port isn't detected. Output from: xrandr -q --verbose | eos-sendlog I have a Intel/Nvidia Optimus machine with debian linux: My Nvidia-prime is working properly but my HDMI external monitor is not working (Actually my xrandr can detect HDMI input but the the monitor is still not working) I Hi all, i’ve recently done a fresh install of endeavour, switching from manjaro. Ask Question Asked 4 years, 2 months ago. Use the hardware lister to check your hardware; sudo lshw -C video. They are shown as disconnected when checking the xrandr output: when booting up DP-1-1 disconnected (normal left inverted right x axis y axis) HDMI- I use a PC and have two monitors, one connected to my nvidia gpu and other connected to onboard intel gpu. If not, reboot, keeping the Displays plugged in! Then run xrandr again and see if it detects the displays. After upgrading to Ubuntu 18. 3 8. 0 1680x1050 60. My xrandr can connect to HDMI port and it seems that my Nvidia card is working (with reasonable GPU usage) But my external monitor is still not Pop OS not displaying output on external monitor connected via HDMI . Here is screenshot of xrandr -verbose. Now from help from u/mgcox2 It displays the screen but I am still facing issues. First clear/rest xrandr settings External display not detecting steam deck output . 0*+ 59. Linux 4. 0-59 warning: output HDMI-0 not found; ignoring. Output from xrandr --listmonitors: xrandr: Failed to get size of gamma for output default Monitors: 1 0: +*default 1920/508x1080/286+0+0 default The notebook is Windows native. 6 > 4. Does not detect HDMI output. Updated and reinstalled displaylink driver. I am sharing my output of xrandr on terminal, btw I am absolute beginner to Linux. No signal on second monitor when I Connect HDMI to my laptop (Lenovo L340) even after selecting any of the display options (Extend left, right or unify). " Well, when I type xrandr in the terminal, it doesn't detect the HDMI output: $ xrandr Screen 0: minimum 8 x 8, current 1366 x 768, maximum 32767 x 32767 LVDS1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm 1366x768 60. 10. I can connect them one at a time but never both at the same time. 4 Distro: Linux Mint 19. What may cause it? Thanks for any help in advance. Tried to install and reinstall NVIDIA drivers versions 390, 435, 440, 450, 460, 465. 4 32 bit, Ati Mobility Radeon HD 3450, proprietary ATI driver 11. I hooked up a external monitor via VGA and Arch recognised the display immediately and I had no problems. Once it rebooted I noticed that Arch was no longer detecting my external monitor's correct resolution on The --rate flag allows you to set your monitor’s refresh rate. 00 SPECS. 12. Open Device Manager, expand the Display adaptors menu, right-click your adapter, and select Uninstall device. Connected docks, dongles, adapters and other hardware can cause conflicts. turn off the external monitor with xrandr --output DP-1 --off 1. xrandr --prop Wayland version. I hook up my external monitor and works on either laptop or external display - not both. Hi, I have two external monitors that I am trying to connect to my laptop. Modified 1 year, 10 months ago. This is important to notice. Up until now, my external monitors are not working, i have connected them to my thunderbolt 3 dock via displayport, though plugging them in I'm using a laptop with a mint linux and I use a multimonitor setup. When disconnecting and reconnecting a second monitor, in all trials expect one, the monitor seemed to be working properly: correct EDID, detecting monitors works properly, mouse moves off screen to other monitor's area, nvidia-settings reports proper Both monitors works at the same time in Win11. Also, in system settings->details->about for graphics it says llvmpipe (LLVM 10. 00 $ xrandr --output VGA-0 --mode 1920x1080_60. The problem here I suspect is that the internal display is connected to the intel It is highly likely that the HDMI will be disconnected which is why the external monitor is not getting detected. V1del Forum Moderator Registered: 2012-10-16 I do use dual booting, but secure boot is disabled (question xrandr does not detect HDMI port) laptop; multiple-monitors; hdmi; nvidia-graphics-card Yes, most vendors only connect the external output to the dGPU (the reasoning being that if you're using an external monitor then you have access to an electrical outlet so the battery saving I ran into a similar situation in which the external monitor would no longer be detected by my laptop. But it is not recognizing it as a monitor. I am using nvidia driver 430. At first when I ran xrandr, it detected my second monitor. Tried different prime profiles for NVIDIA. But use caution, because there doesn't appear to be other ways. I plug my monitor into one of two ports so the script works out where it is. Tech Support Recently got my Deck and I'm trying to use a USB C dock that I already had with it. Linux (regardless of flavor, but PopOS was my If you’re not seeing what you expect on the external monitor, start with basic hardware troubleshooting: Disconnect all accessories from your PC. laptops with AMD integrated iGPU and a hdmi port. Last edited by LockBot on Wed Dec 28, 2022 12:16 pm, Please provide the output of xrandr and let us know if you have the external monitor After upgrading Fedora 39 KDE to Fedora KDE 40 using DNF SYSTEM PLUGIN, the external monitors connected via HDMI and USB-C stopped being recognized. However, I now have a problem; how can I detect the monitor name? I was intending to use a terminal command through os. This connector cannot be used to connect external display devices. There's nothing appearing in the kernel logs that seems relevant. 4. 2 1400x1050 60. Make sure the cable connecting your PC to your external monitor is secure. “Monitor” is often for the real thing—in X11, though, you can join multiple monitors into virtual monitors with Xrandr X11 display refers to entire X-server different X11 display on the same host → probably a different user Hello, I have a laptop that is dual boot Windows and Ubuntu 20. xrandr not auto-detecting monitor resolution. All works good, but the screen mirroring. If I go to Settigs > Displays, I only see the external monitor, not my main one. 15. d that you can see in the following but that did not work either! Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 Hello, I am having issues with my monitor which is not being recognized anymore. What is reverse of them because I need additional one. 1 Cinnamon pre-installed and the HDMI external monitor is not detected. Grievance: My setup is a Lenovo Thinkvision T27hv-20 as docking station which I connect via usb-c (to also charge my machine) and a dell monitor daisy-chained to the thinkvision. 00 3840 4016 4104 4400 2160 2168 2178 2250 +hsync + If you are not sure which one is the output, run xrandr and it will show something like HDMI-2 connected. 00 1280x720 60. ERROR: Unable to find any GPUs in the system. I tried to add the resolution Press and hold the Option key to make the Detect Displays button appear in place of the Night Shift button, then click Detect Displays. I am trying to set up an external monitor to my laptop (Lenovo ThinkPad E14 Gen2). That used to work for the past three months or so, but after a recent set of upgrades, it no longer works. My driver is nvidia-driver-460. After screen unlock the primary monitor switches to the built-in laptop display. The Nvidia settings page correctly identifies the screen connected, As a general rule of them (from this question, as well as personal experience with xrandr on laptops), laptops will either use eDP1 or LVDS1 as their '"native" or built-in display. Questions about hardware, drivers and peripherals The monitor is not detected in Display nor the Nvidia Settings. It does not show up in xrandr. later on I realized that, in order to use the display in xrandr, I had to do three things: 1) Disable unused displays with. Strangely, this wasn't an issue with a different monitor connected in the very same way: USB-C to DisplayPort. 80 1920 2040 2248 2576 1080 1081 1084 1118 -HSync +Vsync $ xrandr --addmode VGA-0 1920x1080_60. The command we'll be using is xrandr. [:Raspberries:] What is step one As title says, neither xrandr nor xinerama detects my multiple monitors correctly. Ask Question Asked 4 years, 3 months ago. Auto detect external monitor. Select a rate that your monitor can use at its current resolution. This problem plagued me for months but I discovered completely by chance that running lspci effectively refreshes the device display list. 4. While the HDMI cable is plugged into my laptop and I run xrandr -q, I get the following output:. 88 1600x1024 60. log lines - DP-1 (the imaginary monitor) does not have an EDID, but it is listed as connected with initial mode 1024x768, and also seems to somehow cause eDP-1 (the actual laptop monitor) to use initial mode 1024x768 instead of 1920x1080; then it gets classified as a keyboard for some reason: Re: [BROKEN FIRMWARE] xrandr not detecting external monitor You were right, it is a hardware issue. I can enable the external monitor just fine, but if I unplug the external monitor, or disable it with xrandr --output DP1 --off, the laptop screen goes blank too (though still backlit). 18. Commented Sep 25, 2020 at 2:09. . 1 1360x768 59. ThinkPad E470c, Ubuntu Studio 16. I checked HDMI cable on another Ubuntu computer and it worked. $ xrandr | grep ’ connected’ eDP-1-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 194mm All output xrandr So not only the external monitor on DP isn't recognized but even the port itself doesn't seem to be recognized (it doesn't show something like "DP disconnected"). 04 Processor: Intel® Core™ i7-6820HQ CPU @ 2. It happened two weeks ago already and I solved it by purging my drivers as described here: But now this is not solving my problem . 3 56. 02*+ 60. Once you got the output, take the current value of your monitor resolution and register the new mode using this command. 0-64-generic x86_64 bits: 64 compiler: gcc v: 7. 0 1024x768 60. For instance, xrandr seems to share this info, so my GNOME desktop would switch to xinerama automatically when I ran xrandr. andre@Flex-5-mint-pc:~$ xrandr --verbose xrandr: Failed to get size of gamma for output default Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080 default connected primary 1920x1080+0+0 (0x3a5) normal Note that “display” and “screen” are X11 technical terms which do not correlate with real world usage. Even xrandr doesn't Run xrandr to determine the names of your display outputs. Please add information on the exact model of your laptop (the output of sudo dmidecode -s system-product-name would probably be best). Select [Playback] tab ④, choose the external Reinstall the display drivers. I had been looking into the onboard graphics I have and not the laptop, but it turns out X1 Carbons Gen 6 and 7 have this common issue. As soon as the monitor comes alive I can simply cancel the change to Mirror Displays, monitor settings revert, and the external monitor works as usual. After an abnormal shutdown my Lenovo ThinkPad X1 Carbon fails to pick up an external monitor connected via HDMI (xrandr outputs "HDMI-1 disconnected). SecureBoot is currently disabled in my UEFI settings to ensure my issue is not related In order to do this I've been using xrandr, which so far, has been pretty useful. 0 Trying Dual monitor setup on Parrot OS 5. xrandr fails on dock with multiple monitors. Hi, I have installed nvidia-dkms and when I run xrandr it can detect my HDMI(externam monitro) that is connected, but it doesn’t detect my laptop monitor (it doesn’t even list it). 04 does not detect external monitors connected via USB-C hub. Now add a new mode to display: $ xrandr --newmode "1920x1080_60. 9 1600x1024 60. xrandr --auto does reconnect the monitor, but sometimes (about 50% of the time) in mirrored mode instead of joined displays. 00 1024x768 60. X11 everything works. If the monitor or any in-between device, such as an active HDMI repeater, isn't getting power, then External display is connected to the port VGA-0. xrandr, autorandr does not work with 3 monitors. Solution. I have a dedicated nvidia graphics and they are used in power settings. I assumed that I would just be able to run xrandr and switch my My laptop (VAIO A12) with integrated graphics does not detect external display with `xrandr`. The problem does not occur on a HDMI screen connected via usbc > HDMI adapter. The restart process should automatically trigger the reinstallation of the correct drivers. I expect this to be the case for you. The driver is old and lately current versions of Ubuntu 22. Latest xrandr has support from this The output of xrandr on XFCE shows HDMI-1 as disconnected and the output when using KDE doesn't display it at all. proprietary version 450 fixed it for me – The monitor is not even detected at Windows 10 (weird?). 17 running in: gnome-terminal inxi: 3. Then once in game connect the external monitor through the dock/usb c adapter. Then, use the flag to set your monitor’s refresh rate. xrandr output: According to xrandr, my external monitor is DP-1 and laptop builtin monitor is eDP-1. I will put the information that I think is relevant below. 98 [] DP-1 disconnected (normal left inverted right x axis y axis) HDMI-1 disconnected (normal It seems like issue with the resolution factor. It connects very well to my work laptop on Windows, but not on my personal laptop (Toshiba A665-5177 from 2011) running on Ubuntu. 0*+ 1024x768 60. 04 up-to-date, kernel 4. Ubuntu; Community; Ask! I have a laptop with an external monitor, both with the same resolution as you. In Settings -> Displays I can’t enable 3840x2160 resolution for my external display(set at 30 hz), only resolutions up to 1920x1080 are available. 97 59. The monitor doesn't have an HDMI port, so I am using an HDMI/Display port adapter, but Ubuntu doesn't seem to detect the monitor. In nvidia-settings I see only one monitor in Layout. 04 desktop with an Geforce GT 640 (Baby Kepler version) and the nVidia 310 drivers. It is way faster that High Sierra. 93 48. But here's the weird thing: Windows 10 which I'm dual-booting with a Truly Portable external USB SSD shows the HDMI port just fine! And, using a different monitor, getting the failure results on a 55" Samsung TV connected via HDMI cable, I get both laptop display and HDMI displaying!? So I won't be thinking of hardware issues. As the title say, XRandR does not detect my monitor (my monitor is connected via DVI). 0 Desktop: Cinnamon 4. 04 and xrandr setting of primary monitor works at startup, but not after screen unlock. Intel requires you to supply EDID config via xorg. No matter what I do, my xrandr output never changes: Here’s a rundown of what these commands meant: The --auto flag is used to either enable a disabled device that’s already connected or disable a device that is no longer detected. 00 I have recently install 22. xrandr --setprovideroutputsource modesetting NVIDIA-0 && xrandr --auto and see if the xrandr detect 2 displays (laptop + 1 ext monitor) and I get the same output on both external monitors. 00 3440 3728 4104 4768 1440 1443 1453 1527 hsync +vsync. (just use the super key and type "display" in the search). give it 10 secs. I have no idea where to start to solve this problem (besides buying hardware). This is the output of xrandr: Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company USB-C TM connector Connect to an external storage, or data devices. It shows I have eDP-1 as my laptop monitor and eDP-3 as my external monitor (ViewSonic in this case). Two things to try: run. Add custom I have a Lenovo Thinkpad T440P connected to an ASUS VG278Q monitor. 3. 04. My monitor is to the left of the laptop - I had problems getting xrandr to do what I wanted when it is to the right. 04, my laptop has been unable to detect/use an external monitor attached via HDMI. external monitor says: "no signal, going to sleep" I want to connect my laptop to an old lg monitor, it works without problem in windows, my laptop has 2 video cards: “GP107M [GeForce GTX 1050 Mobile] (nVidia Corporation) and UHD Graphics 630 (Mobile) (Intel Corporation)”. It will not fill the dimensions of the external monitor. conf, Hello everyone, I’m writing to you because I’m having trouble with my screen. Code: Select all. I have done some research and installed various drivers (Intel's micro-processor drivers, NVIDIA's bumblebee package, etc. no problem. I just bought a new laptop with Linux Mint 20. 96 59. Problem Description. I need to restart my system or perform Log off while monitor is connected to make full list available. 93 1680x1050 59. but just in case I tested with xrandr in desktop mode - the output exactly matches xrandr on my laptop External HDMI monitor not detected in xrandr. Display settings in mint does not detect any external monitor. Once I rebooted, xrandr stopped detecting the second monitor which it did before settings update on DP-1-1. 00 960x540 60. If the computer detects the monitor in the older kernel, you can go back to the latest Running 18. 2 Tina base: Ubuntu Few days a go, i don’t know exactly what happend (maybe system updates, i make nothing with system) driver is broken. I plug in the cable, and Ubuntu shows me the "Display’ interface – evidently noticing a connected device – but the HDMI display itself is not recognized. Had some issues at the beginning concerning boot time, but that was fixed by adding the kernel parameter it=off and installing NVIDIA drivers. 2 monitors Now, I can't connect external monitors over DP anymore - they're just not recognized and stay dark. When I plug it in using USB-C cable (provided by the manufacturer with the monitor itself) it seems to detect that it is being connected because the Quite often, XFCE fails to detect when an HDMI monitor or projector is plugged in. Output for xrandr. Below are the contents of the script run at startup: I have installed Debian 11 on a new Lenovo LEGION 5i Pro with Nvidia RTX 3050 and followed the instructions to install the drivers: $ sudo apt-get install nvidia-driver firmware-misc-nonfree I have plugged in an external monitor using the HDMI port, but it’s not being detected, it’s not showing on the Displays settings page. I have so far tried using xrandr auto-detection: xrandr --output HDMI1 --auto and specifying my monitor's resolution in xrandr: xrandr --output HDMI1 --mode 1680x1050 Neither works. Your log says it is not able to read EDID for your display port, I assume to your external monitor. No signal is detected by the monitor with HDMI plugged in (I used the brand new HDMI cable provided by the monitor) I upgraded in place to fedora 38. I use KDE and the monitor does not show up in the "display configuration", but in Listing the monitors only shows my external screen: xrandr --listmonitors Monitors: 1 0: +DP-0 2560/597x2131/336+3840+29 DP-0 I would be happy if I got things back to normal. 0-13-generic #14-Ubuntu SMP x86_64 GNU/Linux. External monitor - xrandr resolution doesn't work and problem with refresh rate. here is the output of ´xrandr´ command: I tried to make a config file in /etc/X11/xorg. Hi, I have Arch installed with XFCE on my X220 ThinkPad (Intel HD Graphics 3000). xrandr --addmode HDMI-2 3840x2160 🎉 Now the new resolution should be available in the Display settings. Any suggestions? Last edited by demensdeum (2022-07-24 13:18:50) When i plug it in using HDMI cable it works fine but the refresh rate is terrible this way, only 50hz. I believe I can still switch to a tty on the laptop screen. the system does not detect that an HDMI device is connected when running a Wayland session. Viewed 559 times I want to add this external monitor as second screen, but many people uses --same as and -miror command. Last edited by Deamon_DS (2021-08-08 10:06:26) Offline #2 2021-08-06 09:53:20. system, This is the output of xrandr with a working external display connected with USB-C: xxxxxxxxx@xxx-xxx:~$ xrandr Screen 0: minimum 320 x 200, Xubuntu 18. Hi, When I’m connecting second monitor to the laptop, Display Settings applet (and xrandr -q) does not detect full list of supported resolutions. I can see the monitor connected via xrandr/DP, but xrandr --auto or xrandr --output DisplayPort-x --auto will not wake up the monitor. 00 1024x576 60. It is not detected when connected through HDMI cable or USB-c cable. conf. Of course, once you're done, don't forget to regenerate your grub config using : Afterwards, I installed the Nvidia drivers using the --prime and --32 switches (for Steam) with no issues. DP works well in windows system. In my case, I have: eDP-1 (Internal) DP-2-2 (External, Dell 1920x1080) DP-2-1 (External, Eizo 1280x1024, rotated to the right) Calculate the full size of your framebuffer --fb, in my case, I want to use only my external displays: diagram. XQuartz not detecting external monitors correctly #345. My second monitor is an lg tv connected via hdmi while my main monitor is connected via display port. Some docs The only way I've found to get the external display to work (aside from reboot) is to switch from Joined Display to Mirror Display. I should add that the external monitor works with a live usb stick and that it worked in the past. xrandr $ xrandr Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192 XWAYLAND0 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 340mm x 190mm 1920x1080 59. 04 Ubuntu OS and I lost external monitor connectivity. $ The smaller problem of xrandr still detecting four non-existent displayports and several modes it claims it cannot find persists. I change my physical monitor setup several times a day. 0, 256 bits) while it should say intel. xrandr --output HDMI-1-2 --off --output DVI-I-1 I've never had external monitor, and just bought an Iiyama ProLite XUB2792QSU. Monitors don't have to be actively specified at least since xrandr 1. When an external monitor is connected, xrandr shows me two displays: eDP1 (laptop screen) and DP1 (external monitor). Check the box next to Attempt to remove the driver for this device, select Uninstall, and then restart your Windows 11 computer. 04 and when I attach HDMI cable to hp external monitor, the monitor says no signal and then goes to sleep. 00" 728. 88 1400x1050 59. If you detect displays at this point, then you should be able to run the xrandr commands to add the monitors and use each of them. 00" 172. I’m on a laptop, and when I plug in an external screen it’s not detected: $ xrandr Screen 0: minimum 16 x 16, current 3072 x 1920, maximum 32767 x 32767 eDP-1 connected primary 3072x1920+0+0 (normal left inverted right x axis y axis) 340mm x 220mm 3072x1920 59. Take a look at your monitor’s information.
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