Questions tagged [display]

Questions regarding the display(s) attached to a unix or linux machine, the DISPLAY environment setting, the ImageMagick display tool or (along with X11 tag) remote display redirection

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19 views

Empty login screen with two monitors (lightdm)

I'm using Kali Linux 2020.4 with xfce4=4.16 and lightdm=1.26.0-7. I have two monitors setup: HDMI 1920x1080 (shows up as 2nd, HDMI1 in xrandr) and VGA 1366x768 (shows up as 1st, DP1 in xrandr), using ...
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how to permanently change screen resolution specially scaling in RHEL 8.3

i tried the solution given on redhat but still resolution is not changing when login, however i changed my VM scaling setting from VMware settings and uncheck it, now it's getting resolution from the ...
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Failing to switch my laptop monitor display on with xrandr - getting BadMatch

I have a laptop which is often connected to an external (VGA) monitor, with an lxrandr choice to only display anything on that external monitor. Now, if, in that state, one disconnects the monitor - ...
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Kernel errors while trying to use widescreen monitor with AMDGPU on manjaro

I'm having trouble getting a widescreen monitor to work (the Samsung odyssey g9). It doesn't seem to detect any resolutions bar the fallback defaults. I've tried multiple kernel versions and had the ...
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How do I stop automatic display layout switching on Debian?

I'm running Debian 11 with the Mate desktop, and using a Nvidia GTX 760 with the proprietary driver. I have multiple monitors. I set them in the correct order, and with the correct monitor as the ...
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Only one HDMI port recognized on USB-C dock

I've gotten my hands on a JCD543 and only the HDMI/DP combination port is detected on my carbon x1 5th gen running linux while the secondary HDMI and VGA port are not. $ dmesg -w [337962.676809] pci ...
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Screen Mirroring with xrandr super zoomed in

I am trying to set a second monitor to mirror the main display of my laptop (which is a hiDPI screen, 3840x2160), however, whenever I configure the second display with xrandr, using a simple command ...
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28 views

My laptop screen won't work with any version of Linux

Ok, so I'm using an Asus Zenbook UX431FA, which uses the Intel UHD 620 driver for its graphics processing. I want to dual boot a Linux distro, so that I can utilise the full power of the CPU and RAM. ...
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78 views

Fedora 33: Installing Nvidia Drivers from Nvidia

I want to preface this by saying that I understand RPM-Fusion exists and that it has a way to install Nvidia drivers. But, I am using Nvidia's cuda repo instead because I am interested in development ...
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Mouse Lag in Buster (Debian 10)

The mouse takes a few seconds to get to the selection after I've already been at that point for a few seconds. Drag the mouse to close an app, doesn't appear on the X until 5 seconds later. ...
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32 views

Python error only when I run script on Linux cluster: _tkinter.TclError: no display name and no $DISPLAY environment variable

My question is related to a python error, but I suspect that it is more a Linux question than a python one. Thus I post it first here. I am running a python script which does a calculation and then ...
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Why is DISPLAY=:0 incorrect when I only have 1 screen

I've never connected my laptop to an external monitor so I am always using the laptop's primary display. Occasionally, when waking from sleep, I realize that some of the GUI apps (e.g. gitk, git gui) ...
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CentOS 7: xinit: unable to connect to X server: Connection refused xinit: server error

I am little new to CentOS having issues with starting xserver. This is a intel machine with additional 2x RTX 2080 Ti GPUs for computing. So far I have tried: [abc@machine ~]$ startx xauth: file /...
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Configuring Wacom one to overlap on a third screen and map it appropriately

I am a teacher and I have some students in the room and others via web, using  3 screens my laptop + a Wacom one tablet + a video projector screen.  I need to  (using an HP zbook 15u G3 wich can use ...
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CentOS 7 OpenGL not using Nvidia after install and nvidia-settings fails. Is there a way to force nvidia to be used for everything?

Good afternoon, Fresh CentOS 7 server. Installed nvidia drivers (yes for compatibility libraries as well) and able to log into the system. OpenGL still apears to be using the integrated graphics and ...
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84 views

xhost: unable to open display “desktop:0”

UPDATE 1: I am not using SSH. I am using a local machine. UPDATE 2: I restarted the X and notice that the Xauthority file that I am exporting to is actually being updated: $ sudo systemctl restart ...
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ONLY 4K resolution available?

so I’m using Manjaro in its KDE edition for quite some time and overall I’m quite happy with it. There’s only one issue that bugs me every now and then. I’ve ONLY 4k resolution available on one of my ...
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Linux Mint 20 bad screen resolution

I tried searching for this topic on the internet but I did not get the answer. The problem is, I updated to Linux Mint 20, and sometimes the screen will not be detected but there is output. I have 2 ...
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28 views

Do “lspci” and “lshw” commands always show graphics driver?

I recently acquired an older motherboard with SiS built-in graphics and installed Xubuntu on it. I wanted to challenge myself and see if I could figure out how to install a graphics driver for SiS. ...
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132 views

xset: ignore mouse movement when display is blanked

I can blank/turn off display on my laptop with following command: xset dpms force off then, any mouse movement or keyboard press "wakes up" the display. Is it possible to ignore mouse ...
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12 views

Does Gnome have an option to automatically power off connected monitors (visual display units)?

I haven't found an option in the settings. I prefer not 'locking' my system (since I have a desktop computer which I don't share with anyone), but even when I had a screen lock enabled the monitor was ...
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28 views

Linux Not Detecting second display via only HDMI Port on laptop

I made a full switch to Kali Linux in order to stop myself from being able to game. My second display works with windows but not with linux. I had the same issue with Ubuntu xrandr does not seem to ...
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27 views

Application not using full display area running X11 without window manager

I am trying to run a piece of software on an arm SoC. I have x11 running and I launch manually with xterm -geometry 800x480-0+0 while this opens up a xterm that uses the entire panel when I run the ...
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49 views

Use Linux laptop as second display

I have 2 laptops, one Linux and one Windows. I want to use the Linux one as a second display but I can't find anything about it. I found this: Using Linux machine as a monitor for a Windows machine ...
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51 views

xrandr problem with dual monitor setup

I'm running Linux Mint 19.3 and since a change in my monitor setup I have the following problem which I am unable to solve: I have a Matebook X Pro with a HiDPI screen (3000x2000) and would like to ...
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63 views

How to set force-dvi on wayland?

While I've figured out how to set a custom resolution on wayland via: https://askubuntu.com/questions/973499/wayland-how-to-set-a-custom-resolution, I cannot figure out how to set the wayland ...
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Dual Monitor Setup Not Recognized - Same Monitor Model Name

I have an HP 9470m with on-board intel graphics. I have two Philips 272E1CA monitors. When I connect both, my computer is only recognizing one monitor even though the display is mirrored across both ...
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66 views

“x0vncserver” cannot open display from a ssh connection

I have a computer with a broken screen, I try to connect to this computer via VNC. The good thing is that I can access this computer via SSH. The bad thing is I can't open the display from the SSH ...
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111 views

Linux Mint 20 Cinnamon won't use 144hz refresh rate, applications stuck at 60hz, mouse ok

This seems to be a bug even in Mint 20 using a Cinnamon desktop. When changing a monitors refresh rate to 144hz as shown in Display and Nvidia X Server Settings, I can apply the change, however only ...
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30 views

Eyes begin to strain on 4k@60hz on Linux compared to MacOs, what to do?

I am working on Macbook Pro (mid 2015) connected to dual Dell P2514Q (via DisplayPort 1.2). It gives wonderful 4k@60hz, I enjoy the picture. However recently I installed Linux on the same macbook (...
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Display doesn't stay on KDE Neon

I'm running KDE Neon for the first time on a virtual machine. The display doesn't fit my windows size, so I went to the display settings and changed them to my monitor size. But after about one second ...
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One screen, two touch panels (half + half) - configuring driver(s) / calibrating

For complex and tedious reasons I'm looking at a project where a single-screen HDMI video output is split to two monitors 50/50 left/right, each of which has a touchscreen overlay. Left half of screen ...
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44 views

thunderbolt port not sending video

I have a razr stealth RZ0901952E72 running ubuntu20.04 5.4.0-58-generic. When using a macbook with usb-c ports I could run a philips 243V5L using a usbc-hdmi cable. I'd like to do the same with the ...
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Stale image on X11 server after lost connection

I have an X11 server running in a machine, and a separate machine running an application exporting to the X11 server in the first machine The problem arise when the connection is lost between the two ...
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25 views

How do I get 2 seperate GPUs (gtx1060 and gt710) to make one big screen using two displays on Manjaro?

As of now, I have installed the non-free proprietary unvidia-drivers on my Manjaro setup, with only one screen showing. Both GPUs however AND displays are detected. Proof. I also notice that on the X ...
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19 views

Is there any desktop environment that allows to set a different screen scale without changing the screen resolution?

I have a 14" Full HD laptop and connect a 23" Full HD monitor to it. Which is approximately 157 PPI and 96 PPI. Changing the screen scale changes the screen resolution, which makes the image ...
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60 views

How to avoid DisplayLink dock monitors disconnecting intermittently?

Symptoms Every few minutes/hours the displays connected to the USB3 DisplayLink dock turn off for a few seconds and back on again. Hardware Dell docking station model D6000 USB3 connection to HP ...
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53 views

GalliumOS/Xfce screen brightness buttons stop working after external monitor disconnect

When I connect an external monitor and then disconnect my Acer C910 running GalliumOS (Ubuntu variant) the brightness keys stop functioning to dim/brighten the laptop screen. The other keys still ...
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17 views

XRandR. What does suffix 'H' in the mode name mean?

XRandR. What does suffix 'H' in the mode name mean? I use cvt command to get modeline: cvt 1920 1080 60 Get modeline: Modeline "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 ...
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How can i edit my laptop screen display edges?

My kid has broken my laptop screen. Now (approx 1 inch top to bottom) on the left side of the display i can't see anything. I want to move display to the right. It will be a much help if i can control ...
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28 views

How to know if a remote machine has a display attached to it?

I have remote access to a Linux machine. How would I know if the machine is headless or it has a display attached to it? If I ssh into it and run echo $DISPLAY I don't get any output. Does it mean ...
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17 views

Kubuntu 20.04 Display Errror

I have a problem with my resolution. System Kubuntu 20.04 64bit. Graphics 1050Ti. Display LS23EMDKU/EN. Current Resolution 1920×1080. I must set force dpi (96) font because I can't see anything. My ...
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39 views

Using Remote Desktop on my private VM, I enter another existing session than the previous one, depending on… my screen resolution?

At work, we are developing programs, each developer having his own private VM under CentOS. I disconnect my session at the end of the day, then the next morning I start Remote Desktop under Windows ...
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30 views

Can I open java.Jframe object in vscode running on a remote linux server that has no display?

I want to run some java files which use JFrame and JPanel on a remote Linux server. Since it is a remote ssh server it does not have a display to open JFrame/JPanel. I use Visual Studio Code and was ...
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79 views

Kali freezes after login in vbox

I recently downloaded a Kali Linux OVA or Open Virtualization Format File from the their official offensive security page. But after importing the OVA file and booting it, it looks like a normal boot ...
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33 views

Mobaxterm forwarding IntelliJ GUI through gateway no response

I am connecting CentOS using Mobaxterm on win10, the CentOS is a server connected using ssh through gateway. The error is OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in ...
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588 views

Screen mirroring to TV on Debian

I'm trying to mirror the display of my screen to a wireless TV that's on the same Network via WiFi. So the situation is that I have an ASUS screen that's connected to my LAPTOP via HDMI. Since my box ...
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38 views

Dell precision m4800 laptop: external monitor slow

Using a Dell precision m4800 laptop with Fedora 33 and external monitor connected via HDMI. When setting the laptop display to "External only", the display becomes very slow (mouse cursor is ...
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1answer
43 views

i3wm: save and restore workspaces

I am using i3wm on my arch linux laptop and I am very frequently connecting disconnecting external displays. Is there a way to save on which display workspace was and load it later? For example: I ...
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GNU/Linux mirror display at lower resolution

I'd like to mirror my primary display which is 2560x1440 to another monitor at 1920x1080. The other monitor is capable of up to 4k. I have tried various xrandr commands and either the second screen ...

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