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Questions tagged [xorg]

Xorg is a full featured X server that was originally designed for UNIX and UNIX-like operating systems running on Intel x86 hardware. It now runs on a wider range of hardware and OS platforms.

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xfce4-panel and Xorg using 100% CPU when the panel Background set to 'None (use system style)'

When, I use some specific themes like the Vimix theme, xfce4 and xorg combined are using more than 90% of CPU! If I go to Panel Preferences -> Appearance -> and change Background Style from 'None' (...
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Black screen after installing Nvidia drivers on Debian Stretch

I have installed latest Debian Stretch on my MSI laptop and I want to install Nvidia proprietary drivers for my GTX 1060 graphics card. I followed this guide on Debian's wiki: https://wiki.debian....
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How do I find the video memory region(s) representing what's on my screen, from within the Linux kernel?

About 5-20 times a day I am presented with brief visual glitches and heisenbugs caused by race conditions that only occur under high I/O load. These disappear off the screen far too quickly for me to ...
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Use mouse click as keyboard key archlinux + xfce 4.12, no action

Based on this : #!/bin/bash set -x exec &>/tmp/log id=$( xinput list | awk '/Dell USB Keyboard/{print gensub(/.*id=([0-9]+).*/, "\\1", "1")}' ) xdotool mousedown $1 while IFS= ...
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44 views

Udev event and xrandr

I am writing a UDEV rule to change the display settings when the external monitor plugs-in or plugs-out. The rule is working perfectly fine. Randomly, the script doesn' t work. After inspection, I ...
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2answers
143 views

How to map mouse keys as keyboard keys without losing'numeric keypad' for Linux?

I know how to map mouse click for F1, F2 and F3 (respectively left click, middle click, right click): xkbset m # required, but disable keypad xmodmap -e "keycode 67 = Pointer_Button1 ...
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PopOS Scaling multiple monitors individually

I have the latest PopOS with the NVIDIA 410 drivers running. I set up two monitors: The 2nd monitor has 2160p, whereas the 1st has 1080p. I just want to scale the 2nd monitor (150% or 200%). The ...
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Remap capslock key to tab with setxkbmap

I was trying to remap the <Capslock>key to the <tab> key, after some research I found out I could do; setxkbmap -option ctrl:nocaps Which maps the <Capslock> key to <Ctrl>. ...
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1answer
148 views

Second monitor not recognized - need help with xorg.conf file

I'm trying to use this monitor Acer XB270H, with my Ubuntu laptop, but it is not recognized, appears cropped with incorrect resolution. Note: I first was using the docking station with the monitor DP ...
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1answer
54 views

How to map extra mice buttons with Linux nicely in 2019?

I use Debian 9 (aka 'Stretch') x86_64. $ uname -a: Linux mypc 4.9.0-8-amd64 #1 SMP Debian 4.9.130-2 (2018-10-27) x86_64 GNU/Linux Tried to map my extra button from my device, Logitech MU-007 :...
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Logging time spent in X windows

How could I log the time spent in different X windows? This could be useful for getting rid of bad habits.
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Bitwig mouse issue on Cinnamon desktop

I am running Linux Mint 19.1 with Cinnamon 4.0. When running the latest version of Bitwig Trial (v2.4.3), I can not rotate knobs. This broken behaviour is not observed on Ubuntu 18.10, Kubuntu 18.10,...
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Using a /tmp/file as an X-session boolean

I use the solarized colour scheme with a number of programmes and I want a unified way of toggling between the light and the dark version. I'm not aware of any environment variables tied to an X-...
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33 views

Unexpected touchpad events in `evtest`: is this a driver or kernel or firmware or hardware issue?

EDIT: Since I don't know from which component the problem comes from (kernel, xorg server, firmware, other?) I have added information from the xinput --list command and the /proc/bus/input/devices ...
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1answer
30 views

Multiple monitors on linux

I am using a special configuration of monitors on some computers with two monitors. On old setup with NVidia graphics card I used xorg.conf with two screens setup. I was able to start different ...
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How do I assign WM_CLASS when launching an application

I am using mupdf-gl, and using xprop I don't get the value of WM_CLASS. But if I use mupdf-x11, I do get a value for WM_CLASS. The output of xprop for mupdf-gl: _NET_WM_DESKTOP(CARDINAL) = 2 ...
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Xorg log full of RandR output

I am running Ubuntu 14.04.1 on some specialised hardware that directs manipulates the HDMI output before displaying it to the screen. I am noticing that from time to time the Xorg log goes crazy with ...
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96 views

Can't access tty using Ctrl+Alt+F1,F2,F3 etc

Here is what I have tried: $ xev KeyRelease event, serial 43, synthetic NO, window 0x4a00001, root 0x1db, subw 0x0, time 23449801, (434,-234), root:(1305,244), state 0x1c, keycode 67 (keysym ...
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108 views

Trouble installing nvidia driver void-linux

I install like so xbps-install -Sy nvidia it says it is successful but there is an issue when i try to do startx, it says no screens found I created xorg cfg with nvidia still does not work there ...
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1answer
41 views

Separate programs - Remain at their designated monitor

Given that the external and primary monitor always has the same resolution, is it possible to have two programs say VLC and a browser open in their separate designated screens? It is worth mentioning ...
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Arch Linux display freezes after closing any games that use LWJGL

On both of my Arch Linux boxes if I run any game written in java that uses LWJGL the display freezes and the only way to fix it is to kill Xorg, but everything else on the laptop runs like normal, ...
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Second monitor not working after Xorg 1.20 update

I'm using an ultrabook (Dell XPS13 9350) connected to a Razer Core V2, (which works wonderfully!) inside of which is an AMD Vega Frontier Edition (air-cooled). This part of the setup has never given ...
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1answer
31 views

High CPU usage inside Xephyr and Xvnc

I have a GUI application that I want to test in parallel by running my tests in different X-servers. To do that I start the application using Xephyr or Xvnc, then I start the script to do the testing, ...
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Xephyr and xorg process

I run Xephyr:Xephyr -ac -screen 1024x768 -br -reset -terminate 2> /dev/null :1 & and then I can run there some window: export DISPLAY=:1 xterm & When I check xorg processes ps ax | grep ...
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Artefact on top-left corner of the screen while logging into console

After some update (probably xorg) of my Debian testing, when I log in to console I have the following artefact on my top-left corner: It is also visible when logging into GNOME 3. How do I fix this?
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174 views

Ubuntu 18.04.1 LTS - starting second xsession fail

I try to start second xsession on Ubuntu 18.04.1 LTS. I switch to tty3: ctrl + alt + F3 then execute the following commands: export DISPLAY=:2 startx -- :2 but it fails. Logs. What is wrong ? The ...
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Which application steals X keyboard events? [duplicate]

In a linux distro there's a hotkey that has grabbed X11-wide to react on it. How do i find out which application is doing that without killing each of them to see when the behaviour stops?
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How does xorg paint stacked windows?

I was reading a book called Low Level X Window Programming by Ross Maloney. He was talking about one of the key aspects of a stacked window system i.e restoration of "hidden" contents when you "remove"...
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81 views

Enforce native resolution on Linux Mint 18

My graphics card is Nvidia GT 440 and I'm using the nvidia binary driver v384.130 on Linux Mint 18. I have a Dell U2518D which has a native resolution of 2560x1440@60Hz and the problem is that the ...
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1answer
68 views

Set mouse acceleration on linux

I am trying to set my mouse acceleration on linux mint 19.1. I used to be able to use... xset m 14/5 10 Where 14/15 is the accel ratio and 10 is the threshold in pixels per 10 ms. Now in Linux ...
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28 views

Display freezes when HDMI is not connected

I have an Acer Aspire E 15 on which I installed Archlinux with XFCE as my DE. However, I find that the laptop's display completely freezes as soon as I disconnect the HDMI cable to my external monitor....
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How to disable Xorg from installation media

After installing Arch Linux, I installed Xorg along with KDE Plasma (along with Nvidia drivers etc.) Once I first booted into Plasma, everything froze at the desktop screen after moving my mouse ...
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4answers
81 views

Run X program in another user's display

Running Ubuntu 16.04 in host, I have the following setup: a user1, who performed a GUI login in host; a user2, who is a sudoer and is logged in only through a text ssh connection (ssh user2@host). I ...
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63 views

How do I determine the screen resolution of an application in Xorg?

I do not want to know the resolution of my monitor. I would like to know the resolution of a fullscreen window running within Xorg. For example, the resolution of Firefox when I maximise the window. ...
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160 views

Duplicate screen Xorg over network (Xpra ?)

I'm looking for a way to duplicate my desktop on a network. (Something that would work on a web browser client would be amazing.) I tried to use vnc / x11vnc but quality/framerate is too low. (cpu ...
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462 views

Debian and my new AMD Ryzen 2700U (Vega 10) aren't friendly

I was happy with my new laptop with AMD Ryzen 5 2700U and Vega 10 graphic card until I tried to install Debian Stretch. I read a lot about the problems with new Ryzen and old kernels. I can't found ...
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startx crashes with no errors

I am having a weird problem trying to run startx on my debian desktop. It crashes and dumps me back into the shell, with no indication as to what went wrong (that I can see). It had worked previously, ...
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Apple 27" Cinema HD Display making Xorg slow to a crawl

I recently came across an Apple 27" Cinema HD Display, which is 2560x1600 and connects through DVI. I have a fairly powerful gaming PC, GTX 770 graphics card, i5-6600k, SSD, and 16 GB RAM. I ...
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1answer
231 views

Install bumblebee on debian 9

I'm trying to install bumblebee on my laptop but i've some problem after the installation.i'm still unable to run something with primusrun. primusrun glxgears -info /usr/bin/primusrun: riga 41: ...
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2answers
96 views

XTerm*faceName in .Xresources are not reflected

I've tried customizing zsh's prompt with change the font but during it, xterm become not to reflect the XTerm*faceName in~/.Xresources. Here is my dot files: ~/.xinitrc #!/bin/sh # /etc/X11/...
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162 views

Wrong screen resolution sometimes after sleep, with Ubuntu

After my Lenovo T480s connected to a Benq 4k display wakes from sleep, my resolution goes to 1080p, unplugging and plugging the display back in resets it to 4k. (This doesn't always happen, but I find ...
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1answer
59 views

GTK and Qt apps seem to interpret XCompose differently

I'm using Ubuntu 18.04. By default, typing something like ^2 produces ², which I don't want: I want it to be ^2. I found out that to accomplish that, one has to set GTK_IM_MODULE=xim and QT_IM_MODULE=...
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2answers
399 views

xrandr fails randomly with “Configure crtc X failed” on dock with multiple monitors

TL;DR: xrandr fails randomly on my system with the error message xrandr: Configure crtc X failed on my setup with two monitors, that are connected to a dockingstation. After I turn on and off single ...
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2answers
72 views

Can't load desktop environment with startx [closed]

I'm facing a problem that I've never seen before. I want to load i3 with my new installation of Arch Linux but when I launch startx, the tty is freezing with no error. I've checked the log of xorg, I ...
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103 views

Can I run wayland application in X?

Is there's wayland server running as X11 client? Like XWayland but reversed.
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73 views

How to vary the amount of red or blue light with xcalib?

xcalib commands follow this structure xcalib -color <gamma> <brightness-percent> <contrast-percent> I then issue two commands as one to try and adjust the amount of red on my ...
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48 views

X11 with systemd/user: Mouse pointer size inconsistent

I use xorg as user service follow: https://wiki.archlinux.org/index.php/Systemd/User#Xorg_as_a_systemd_user_service I ported all other deamons to user services but there's a point that I can't ...
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0answers
52 views

Is there a way to know if more than one compositor is running in a session?

I got the following info. via inxi - $ sudo inxi -SICGxxx | grep compositor Display: server: X.Org 1.20.3 driver: modesetting unloaded: fbdev,vesa compositor: marco v: 1.20.2 while I ...
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1answer
2k views

Error when trying to use Xorg: Only console users are allowed to run the X server?

So when i try to use the Xorg command as a normal user, this is the error that it gives me : /usr/lib/xorg/Xorg.wrap: Only console users are allowed to run the X server but i don't understand, what ...
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1answer
560 views

modprobe: FATAL: Module fbcon not found. Number of created screens does not match number of detected devices

I am using debian. I recently have purged X11 and xcfe4 and reinstalled them both but whenever I lauch Xorg --configure I get this: (++) Using config file: "/root/xorg.conf.new" (==) Using system ...