Questions tagged [display]

Questions related to hardware displays, either internal (as in a laptop) or external (as in most desktop monitors, or projectors)

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How do I enable mirror (clone) display mode on login screen? (gdm3)

My monitor is often turned off when I log in (I use the TV instead). I usually use screen mirroring (cloning) when logged in. But on the login screen, the mirroring doesn't work. Thus in my TV, I don'...
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Display refresh rate keeps resetting

My monitor is capable of 75hz, but it keeps glitching when it is on 75hz, my solution before was to set refresh rate to 60hz but now it keeps resetting when I open fullscreen apps. This all started ...
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Certain programs disable second monitor

For some strange reason, whenever I open the Evolution mail client my second monitor gets disabled. If I unplug and re-plug it in, it is still blank. When I run xrandr I see: Screen 0: minimum 320 x ...
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How to change primary display in KDE?

I can't seem to find the option to make my second monitor as primary display, how may I change that? Thanks in advance!
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x11vnc with virtual display causes window trail

I'm using x11vnc on my ubuntu 20.04 to connect my tablet to my virtual display, which I created with xrandr as follows: xrandr --newmode "2000x1200_60.00" 201.50 2000 2136 2352 2704 1200 ...
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Problem when closing the laptop, connected external screens run very slowly (Dell G5 5505)

I have a problem with my Dell G5 5505 with ubuntu 20.04.2 When I connect an external display, and close the laptop, everything works very slowly. Two displays or one. HDMI or DisplayPort. With ubuntu ...
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32 views

I can only see my cursor after using xrandr to create a custom resolution. How do I fix this? (20.04.2LTS)

I'm trying to set up a custom screen resolution (2560x1440) for the external monitor I have hooked up to my laptop using xrandr. Once I go to set this custom resolution through the GUI, all I can see ...
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22 views

Can't change from 3840x2160 resolution

2"2I have a Lenovo thinkpad X1 extreme with a GeForce GTX 1650 graphic card. For a while in ubuntu 20.04 i'm being unable to change my resolution from 3840x2160, from the nvidia-x server and ...
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27 views

4k display stuck 1024px

I have a Acer XB280HK and a dell Precision 3520 laptop. When try to use the external monitor on Ubunt doesnt exceed 1024px resolution. Below is the output of xrandr Screen 0: minimum 320 x 200, ...
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22 views

Open application on current screen when using multiple monitors

Currently, I have two monitors that expand my workspace, one native from my laptop, that I use to control some applications (Spotify, Google Meets), and the other is external, which is used for ...
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Issue with built-in and external displays

I use a laptop with Ubuntu 18.04.4 and Intel® HD Graphics 5500 (BDW GT2). Normally I use one or two external monitors. In one setting one monitor is connected via HDMI another via VGA. External ...
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Unknown display error ubuntu 18.04 (ryzen 5 4600h processor huawei matebook)

I installed ubuntu version 18.04 on my computer but I get an unknown display error, I can't change the screen resolution, I can't change the screen brightness, I tried all the solutions available on ...
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Ubuntu 20.04 Not Showing 144hz Screen. Capped at 60FPS. For OVERWATCH

I've bought a new Monitor (27" SAMSUNG ODYSSEY G5 1440p 144hz) and I only use Ubuntu 20.04. I primarily play OVERWATCH which is what I'd like to experience in 144hz for the first time ever. I ...
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47 views

Ubuntu black screen on startup

I have a Lenovo T460 running Ubuntu 20.04. Recently I unplugged it from an external monitor and then restarted it. Since then it has stopped working correctly. Now when I turn it on, I see the Lenovo ...
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Mouse displays square trailing block on Ubuntu 21.04 kernel 5.11.0-16 with AMD R7 and NVIDIA 1650

demo1 demo2 Hi, I don't know how to put this, please see the pictures. When I move the mouse, I get trailing blocks. Sometimes these boxes persist for a while, blocking things I want to see. I believe ...
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Ubuntu 20.04.02 -display UNCLAIMED

I have a intel i7 gen 11 with intel uhd 750 display adapter with Asus 24" hdmi adapter. The screen resolution at the moment show 1023x768 with aspect ratio of 4:3 (setting shown unknown display). ...
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21 views

installation of kde in WSL

recently i got some problems with PC so i formatted hdd and installed win10 (ofcourse beta). to make some personal things i need to have ubuntu with FULL DESKTOP (gui). i decided to choose that it'd ...
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Second monitor is not working when I open system options (20.04 LTS)

I have a strange problem for which i can't figure out what is going on. I want to connect my laptop (Dell Latitude E7470 with Ubuntu 20.04 LTS) to an old VGA monitor I have. To do this i'm using an ...
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Firefox display not working on x11vnc

I am trying to connect firefox to my vnc server. I run this command on first window : x11vnc -display :0 -noxrecord -noxfixes -noxdamage -forever -passwd 123456 -noshm -create On second window : ...
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25 views

Is there any utility in kde plasma 5 (Kubuntu) to quickly adjust the resolution to the TV (overscan)?

I am using an old TV as a monitor, and as is common with hdmi connections to these devices, I am having problems with overscan (the resolution options are reduced and the edges of the screen are cut ...
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33 views

One of my Dell Monitor becomes Synaptic Inc 24'' on Ubuntu 18

please excuse me if I did not post this question on the right website since I'm not sure this issue is caused by Dell or Ubuntu. I have Dell laptop (Precision5530) running Ubuntu 18. I have 2 external ...
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47 views

Ubuntu 20.04.2.0 LTS - Icons not displayed, blank desktop (Running on Virtual box 6.1)

Login-Screen Desktop As you could see in the above image, the icons and the desktop is being blank. The place in which the icons are there its interactive and I could move around it. But only couldn'...
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40 views

Ubuntu will not boot after removing “nomodeset” from boot commands

Ubuntu 21.04 will not boot unless I have nomodeset in the boot options. This may not sound like a problem at first, but it prevents me from changing my monitor's resolution and refresh rate. AMD's ...
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24 views

mininet wireshark qt.qpa.plugin: could not load the qt platform plugin “xcb” in “” even though it was found

Is there any relatively easy way to deal with this, except the github solution, which i already tried.
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31 views

How do I install Ubuntu Server on a local machine without a monitor?

I'm trying to install Ubuntu Server on a old server of mine but it has a VGA slot and my monitor has only HDMI and mDP. Is there a way to put a Ubuntu Server installation stick into it and connect via ...
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1answer
36 views

HDMI output detected but no signal under Kubuntu

I am using Kubuntu 20.04. I have dual boot and used an HDMI TV to extend the screen, worked perfect so far. However, when I switch to Linux, the HDMI display does not receive signal at all (Displays ...
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9 views

Ubuntu 20.04 server ting text on 1440 screen

I use a new 1440 gaming monitor for a Windows desktop but also feed in 2x Ubuntu servers and one Debian server (no GUIs on any of them) through a 4K KVM switch. The text on the three Linux devices is ...
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126 views

Issues with fractional scaling on Ubuntu 21.04 with multiple monitors

I just installed 21.04 to see if it can handle my display layout better than 20.10. I had issues with the displays not understanding their borders when rendering menus or maximizing windows. This ...
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67 views

wrong screen resolution Ubuntu Studio 21.04

Ubuntu Studio 21.04 uses KDE Plasma 5.21. It does not recognize the native resolution, 3840x2160, of my Dell P2415Q monitor. Other Linux distro's do. Ubuntu Studio shows 2560x1440 as highest ...
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Anyone have a fix for a black screen after reopening laptop and logging in?

Title is pretty self explanatory. Some context: I had previously installed redshift to manage my screen warmth, but realized that Ubuntu 20.04 had a preinstalled night light feature. I uninstalled it (...
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20 views

How to get external monitor to reconnect after sleep or power off

Using a laptop, when I sleep or disconnect power to my external monitor, after I power up (from sleep or just power up the external monitor) the display doesn't come on. The only way I've found to get ...
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1answer
160 views

Ubuntu 21.04 boot issues on MSI Prestige EVO 14

I wanted to install 21.04 on my laptop, an MSI Prestige 14 EVO but unfortunately the operating system does not boot. GRUB appears and, either selecting normal boot or boot in with "safe graphics&...
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1answer
32 views

Poor screen resolution on my HP laptop after installing Ubuntu 20.04

I bought a HP Laptop 15-da2xxx which comes with a Nvidia GeForce MX130 and a i7-10510U CPU. When trying to change the screen resolution from the settings there is no more than 1366x768 which is bad. ...
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Hyper-V - 'Use all my monitors' - Change display scale

Context I installed Ubuntu 21.04 in a Hyper-V VM on Windows 10. It appears to be working great! I then followed the awesome directions here: How to install Ubuntu 20.04 on Hyper-V with enhanced ...
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34 views

Installed Firefox with sudo apt firefox install, when I type the command line 'firefox' command I get an error

As I said in the subject line, I set the DISPLAY variable to :0.0 but I get the error message, Failed to connect to MIR: Failed to connect to server socket: No such file or directory Unable to init ...
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23 views

External monitor does not wake up from standby

Notebook is an acer ryzen 4000 series, integrated AMD GPU ubuntu 18.04, 20.04, 20.10 monitor plugged via hdmi-dvi cable problem is cannot wake up monitor when connecting to hdmi-dvi cable. i need to ...
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1answer
52 views

Ubuntu 20.04 screen flickering after power loss

I had Ubuntu 20.04.02 LTS installed on my work machine for months and it worked without any problems. Yesterday the power suddenly went out in the office. After it came back and rebooting the machine, ...
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1answer
27 views

Is it possible to keep different ssh login shells a same $DISPLAY number?

I am running a Jupyter Server on my remote server with nohup jupyter lab --no-browser --port 1234 $ and use X11 forwarding to access gui programs on the remote server. But the $DISPLAY number of the ...
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24 views

Screen resolution issues running fvwm on a Dell XPS 9300 with ubuntu 20.04

I've been running fvwm on top of ubuntu for decades. I recently obtained an XPS9300 which has a default screen resolution of 3840x2400. When I use either the .fvwm2rc configuration that I've ...
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1answer
72 views

Ubuntu 20.04 UI rendering glitches after upgrading from 18.04

I was using ubuntu 18.04 for long time and then I upgraded to 20.04 but faced lot of problems,specially relating to display and graphics drivers. but I anyway solved this here Ubuntu Black Sreen ...
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Screen rendering issue after upgrade from 5.8.0-48 to -49 and -50 [duplicate]

My system has integrated graphics, Intel i5 chip. After upgrading from 5.8.0.48-generic to -49, after reboot, I noted browser screen does not update correctly. Missing images and text, flickering. I ...
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23 views

DisplayPort monitors (2) backlights turn on during suspend

When I suspend manually or by timed power management, my two displays turn off correctly, no backlight. However, at some point the backlights turn back on. If I walk by in the middle of the night, ...
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1answer
31 views

Multiple issues: Not regnizing second monitor, authentication failed & no Power Off

I am facing three issues with my Ubuntu 20.04 installation on a laptop All a sudden my OS has stopped recognizing my second monitor connected through HDMI. The following login screen appears up ...
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1answer
47 views

Display is wrong resolution, aspect ratio, and size

So last night (April 13th), I installed an update from Canonical that popped up in a GUI, it said something about a security update (I didn't look at it too hard). Since then I've rebooted my machine ...
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1answer
719 views

PC started having screen glitches after update

I'm not sure what's caused it. I haven't changed any system settings. The only thing I've done that may have broken something is updating my software. My update was: upgrade linux-generic-hwe-20.04:...
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26 views

Display settings reset to default on login

So the basic problem is that when I log in to my computer, after about a second, both screens briefly go black and when they come back on, one monitor is disabled in settings and the other goes to its ...
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17 views

Force all screens to same display

I want to create a configuration (a service running in the background is also okay) to automatically force any future monitor attached to the PC to (1) mirror the primary monitor, (2) use the same ...
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20 views

20.04 Join Displays ordering not working

I'm on Ubuntu 20.04, this weekend I accidentally removed ubuntu-desktop (after having trouble with python3, I removed it, which led to ubuntu-desktop being removed as well) which I have since ...
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109 views

Ubuntu 20.04 LTS unable to detect second monitor

I have a desktop computer running on Ubuntu 20.04 LTS with the following hardware: 11th Gen Intel i5-11400 H510I PRO WIFI MSI motherboard no graphics card The motherboard has a DisplayPort and HDMI ...
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18 views

Dual monitors spontaneously changes to single monitor at random intervals

I am running Ubuntu 18.04.5 LTS with a GeForce 1050 Ti graphics card. I have two Iiyama 24" ProLite 824 83HS monitors, one plugged directly into the DisplayPort socket on the graphics card; the ...

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