Questions tagged [xorg]

Questions about X.Org Server (commonly known as Xorg Server, XServer or Xorg), the software that runs the X window system used by most desktop window managers (GNOME, KDE, etc)

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35 votes
3 answers
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How do I script to open a set of programs each on specific workspace?

I looked around for a while and could not figure out the answer to my following problem: I have a setup of six desktops on Ubuntu 12.04 with Unity. On start up, every morning, I go through a routine ...
Jahn's user avatar
  • 351
35 votes
7 answers
153k views

ubuntu 16.04 gives "X Error of failed request: BadValue (integer parameter out of range for operation)" when running OpenGL programs

I have two two graphic card on board, one is the integrating in Intel cpu, one is the nvidia card. I want use the integrating one to render desktop, the NV card to calculate with cuda. I switch to ...
hangkongwang's user avatar
34 votes
3 answers
54k views

How to remove all "rc" - residual packages using command line at once?

I have an Asus Q500A with win8 and Ubuntu 12.04 64 bit; Linux kernel 3.8.0-32-generic. I have been having residual package issues which have been giving me trouble trying to reconfigure xserver-xorg-...
hydroxide's user avatar
  • 427
34 votes
7 answers
109k views

NVIDIA drivers not working after upgrade. Why can I only see terminal?

Tonight I upgraded to 11.04. Problems. Once I had finished the upgrade, I restarted my computer as it told me too. When I got past the ubuntu 11.04 (purple background orange dots), it simply went to ...
Sixthlaw's user avatar
  • 761
33 votes
2 answers
186k views

How to inspect the currently used Nvidia driver version and switch it to another alternative?

I'm trying to find out which Nvidia driver is being used currently in the system (and how to perhaps switch it to another version or the open-source nouveau driver). modinfo knows about several ...
imz -- Ivan Zakharyaschev's user avatar
33 votes
2 answers
50k views

Getting character key code mappings in Ubuntu

I am trying to play around with some keyboard layouts in Ubuntu. Now there is a program called showkey which lets me see the keycode for any key pressed in the terminal. Is there any command to get ...
Vivek Pradhan's user avatar
33 votes
6 answers
67k views

Can't get nVidia drivers working with 16.04, logs out right after login

I have installed Ubuntu 16.04 beta 2 on Monday, Apr 18th. When I try to install nvidia-current, nvidia-361 or the version that jockey installs, either lightdm fails to start entirely or I can't get ...
Dugi's user avatar
  • 1,059
33 votes
10 answers
79k views

Radeon HD 2000, 3000, 4000 on Ubuntu 12.04.2 and higher: fglrx (legacy) unsupported, what to do?

After upgrading to 12.10 quantal, the packaged version of fglrx no longer works. I discovered that this is because there is a separate 'legacy' fglrx driver for the HD 2k-4k series cards, but it is ...
Andrew Mao's user avatar
  • 1,711
32 votes
4 answers
25k views

Remapping Caps Lock in 14.04 Trusty Tahr

I've seen a number of questions that point to a GUI menu to remap caps lock, but that menu seems to be gone in 14.04. Am I just not finding it, or is it really gone? I know you can use xkbmap to remap ...
Eric Andres's user avatar
32 votes
1 answer
41k views

xdotool: what are "class" and "classname" for a window?

In light of https://unix.stackexchange.com/a/254854/674 and https://unix.stackexchange.com/questions/458895/how-can-i-bring-a-background-gui-job-to-the-front-of-my-desktop, there is an example from ...
Tim's user avatar
  • 25.2k
32 votes
10 answers
55k views

GNOME lags so bad on Ubuntu 18.04

After I installed fresh Ubuntu 18.04 with GNOME desktop and It had opensource driver I experienced very bad lag. I Installed Nvidia 390 Driver and the lag was so bad. Changing the driver to Nvidia ...
ICE's user avatar
  • 2,065
31 votes
1 answer
75k views

list existing X display names?

How do I get a list of current X display names? Apart from being a useful thing to know, I want this so that (hopefully!) I can use xcalib -invert -alter as suggested in this question to invert the ...
drevicko's user avatar
  • 4,363
31 votes
1 answer
21k views

How can I tell if an application is using XWayland?

I'm troubleshooting some issues to do with multiple monitors and HiDPI on Wayland. I've learnt from online resources that applications on XWayland may not handle this use-case as expected. So now I ...
Flimm's user avatar
  • 41.7k
31 votes
4 answers
75k views

What is the most simple example to check if X11 forwarding is working?

I have access to a cluster and wanted to use the simplest example to ssh into it with X11 forwarding and see if it works. Currently, I simply log into the cluster: $ ssh -Y user@cluster and the only ...
Charlie Parker's user avatar
30 votes
4 answers
78k views

How to disable GUI on boot in 18.04 (Bionic Beaver)?

It appears that sudo systemctl disable gdm3 && sudo systemctl disable gdm do not work in 18.04 to disable the windowing system at bootup. What's the method for doing this now?
ylluminate's user avatar
  • 1,449
30 votes
5 answers
52k views

Nvidia driver doesn't work in 12.10

I have GeForce GTX 560 Ti. I's worked fine in 12.04 with nvidia drivers. Unfortunately, after todays 12.10 update, something broke down. I've tried nvidia-current, nvidia-current-updates and nvidia-...
konradk's user avatar
  • 508
28 votes
3 answers
27k views

Switch between nvidia-current and nouveau without a reboot?

Is it possible to switch between Nvidia's BLOB and Nouveau video drivers on-the-fly? I think I need to be able to: [✓] Unload nvidia [✓] Unload nouveau [✕] Restore the console ...
htorque's user avatar
  • 64.8k
27 votes
4 answers
30k views

Ubuntu "Could not get screen information" after upgrade

I have upgraded from Ubuntu 14.04 to Ubuntu 16.04 and now when I open Display Settings I get the message "Could Not get Screen Information"(here is a screenshot): There are multiple questions ...
Ivaylo Strandjev's user avatar
27 votes
6 answers
30k views

How to run two X sessions at the same time?

I would like to run two X server instances at the same time. One would be an interactive session using the mouse and keyboard attached to the computer. The other would be a 'virtual' session that I ...
Nathan Osman's user avatar
  • 32.1k
27 votes
4 answers
117k views

Xconfig xrandr BadMatch

Recently I minimal installed my OS, but got an unexpected error while setting my monitor resolution. It seems like a very old problem, but this time there is something else (I think). To install the ...
Teifi's user avatar
  • 1,312
26 votes
4 answers
15k views

How can I map a character to a key combination?

I'm a bit of a fan of the interrobang (‽), but it obviously is not on my keyboard. How can I map that character to a key combination?
crenshaw-dev's user avatar
  • 31.7k
26 votes
4 answers
4k views

Is there a way to cheat javascript games (like Unicoin mining) where rapid clicking is required?

I saw that there's a new currency on the site today for higher privileges called Unicoin. You can mine them by clicking quickly. I was wondering if there's any Ubuntu wizardry that could speed up the ...
Oli's user avatar
  • 293k
26 votes
6 answers
56k views

50-synaptics.conf options not working

How does Ubuntu come up with the default synaptics settings? I've got Ubuntu Netbook 10.10 installed on an Eeepc 900. Out of the box TapButton2 was set to 3, and TapButton3 was set to 2. I have ...
djeikyb's user avatar
  • 30.2k
26 votes
4 answers
10k views

How to trigger a color inversion effect for one window?

I want to have an inverse color effect (light to dark) like 'negative' in compiz, but without compiz, and only for one window (like compiz's Super+N) . Is there a way to get a similar effect (...
belacqua's user avatar
  • 23.1k
25 votes
5 answers
139k views

what does startx command do?

While reading about Ubuntu I found the following statement..... If the display manager is not started by default in the default runlevel, you can start X a different way, after logging on to a text-...
lazarus's user avatar
  • 1,553
25 votes
8 answers
9k views

Xsnow does not work

I have installed the old program xsnow with Apt. This program is supposed to make snow (the type of precipitation) appear on the desktop. However, running the program does nothing except return the ...
Richard's user avatar
  • 8,502
25 votes
3 answers
31k views

Prevent /usr/lib/xorg/Xorg from using GPU Memory in Ubuntu 20.04 Server

On an fresh Ubuntu 20.04 Server machine with 2 Nvidia GPU cards and i7-5930K, running nvidia-smi shows that 170 MB of GPU memory is being used by /usr/lib/xorg/Xorg. Since this system is being used ...
Nyxynyx's user avatar
  • 1,063
24 votes
3 answers
55k views

Remove packages to transform Desktop to Server?

I have a VPS that has Ubuntu 11.10 on it. Unfortunately, only the 11.10 Desktop (not server) image was available as an image to install your VPS with. How can I remove the packages included in the ...
Azendale's user avatar
  • 11.9k
24 votes
4 answers
68k views

Ubuntu 16.04 LTS - how is the X server started?

I have thought that /usr/bin/startx script is used to start the X server but it looks like it is not true. Which process or script starts the X server? The X server has to be started before lightdm ...
Irbis's user avatar
  • 507
24 votes
4 answers
25k views

How to install Nvidia drivers to use CUDA without also installing X11?

I have a headless box that will be used for CUDA computing. I installed Ubuntu server 16.04.1 but when I try to install the nVidia drivers via apt-get it also wants me to install X11 and other GUI ...
en4bz's user avatar
  • 712
24 votes
2 answers
25k views

How to check using the command line which display manager is running?

How can I determine the name of the display manager in use solely by using the command line?
Abdul Al Hazred's user avatar
23 votes
3 answers
139k views

How to start X application from SSH [duplicate]

I've tried to search this topic in google, but without any significant results. I need to start some GUI app from terminal, but I don't care what this app is showing me. In addition, I need to start ...
Paweł Wojtal's user avatar
23 votes
3 answers
225k views

How to make an xorg.conf file

I just installed Ubuntu 12.10 and I need to make a custom xorg.conf file. By default, there is not an xorg.conf file on my system. I know what I need to write in the config, but I just don't know how ...
parker.sikand's user avatar
23 votes
5 answers
12k views

How to reverse colors for the current window in gnome shell?

I dislike that most websites use a black font on white background for their sites, as it gets too tiresome for me to read. Back in the days of 11.04, using Gnome2 with compiz, there actually was a ...
k0pernikus's user avatar
  • 6,105
23 votes
7 answers
14k views

Alt+tab out of fullscreen game

Right now I'm running Trine, which is a game using OpenGL running in fullscreen, in Ubuntu 10.10. What I would like to be able to do is Alt+Tab out of the game to be able to browse the web, check ...
Tommy Brunn's user avatar
  • 9,741
23 votes
2 answers
10k views

Application-specific key combination remapping?

I'm aware of a number of ways of remapping key combinations in Ubuntu on a global basis (e.g., globally remapping Ctrl+S to send Ctrl+D or something), such as the xbindkeys application. What I need, ...
Derek Thurn's user avatar
23 votes
4 answers
11k views

External monitor randomly goes black on Ubuntu 20.04 LTS

I have a really irritating issue where my external monitors randomly goes black for a few seconds and then returns. This happens every other minute, but sometimes i can sit for 30 minutes before it ...
Sapomex's user avatar
  • 341
23 votes
6 answers
42k views

Ubuntu 18.04.1 LTS Can't Enable Screen Sharing

When trying to enable "Screen Sharing" under the "Sharing" section of the system settings I can click on the "ON/OFF" slider but it will not stay set to "ON". I can set the "Sharing" slider to "ON" ...
thewill2live's user avatar
22 votes
3 answers
23k views

What is Xwayland? What if I remove it from Ubuntu 22.04?

Xwayland seems new in Ubuntu 22.04. What is it? Is removing it safe?
Parmanand Patidar's user avatar
22 votes
11 answers
23k views

Mouse flickering on one of my two screens

I just installed ubuntu 14.04 and the mouse is now flickering on one of my two screens. The other screen doesn't have any flickering. I was previously using ubunutu 13.10 without any issue. If I ...
Timothée Jeannin's user avatar
22 votes
4 answers
14k views

Why do I have so many .Xauthority.* files in my home directory?

I'm using Ubuntu 13.04 on a Lenovo X220. Why do I have so many .Xauthority.* files in my home directory? I.e .Xauthority .Xauthority.0JW6UW .Xauthority.2HWRVW .Xauthority.2TA6VW .Xauthority.49F8VW ....
conner_bw's user avatar
  • 889
22 votes
2 answers
22k views

How to disable touchscreen permanently?

I am trying to disable the touchscreen on my Asus S200E laptop. In Ubuntu 16.04, I was able to do so with this: Section "InputClass" Identifier "evdev touchscreen catchall" ...
Nasikun Nasikun's user avatar
22 votes
3 answers
31k views

How to run multiple user X sessions on the same computer, at the same time?

I want to have more than one user logged on at the same time, on the same computer. Each user should have a full X session. It is easy enough to log in to multiple concurrent non-X Linux terminals, ...
Peter.O's user avatar
  • 24.7k
21 votes
3 answers
35k views

How do I reset my keyboard layout?

How can I reset my keyboard layout after modifying it with xkbcomp? Is there a way to do this without restarting X?
DLH's user avatar
  • 2,445
21 votes
3 answers
38k views

How to enable or disable GUI in Ubuntu

Say if I wanted to replicate Ubuntu Server and have no GUI running what would I do to make this happen? Upon running htop/top from tty session I see both gnome and xorg are still running and sucking ...
customcup's user avatar
  • 351
21 votes
4 answers
19k views

How to configure iGPU for xserver and nvidia GPU for CUDA work

I have an Intel onboard GPU and NVIDIA GPU. I am running Ubuntu 18.04. How do I configure a dual GPU setup so that Intel onboard iGPU will drive the monitor, leaving NVIDIA GPU exclusively for ...
stason's user avatar
  • 601
21 votes
3 answers
56k views

Where is the xorg.conf file in Ubuntu 18.04?

I just installed Ubuntu 18.04. I have a machine with two gpus and 5 monitors. Getting them to work week has been challenging in the past, using previous versions of Ubuntu. In the end I manually ...
Joe's user avatar
  • 367
20 votes
5 answers
104k views

Am I using the Nouveau driver or the proprietary NVIDIA driver?

For a long time, I have used the NVIDIA proprietary driver. In Additional Drivers the NVIDIA driver was activated. However, I just "Removed" that driver because I would like to use the Nouveau driver ...
kalaracey's user avatar
  • 2,127
20 votes
9 answers
58k views

How to make X.org listen to remote connections on port 6000?

This is on Ubuntu 10.10 (Maverick Meerkat) 64-bit desktop. I want to make my X server listen to remote connections from clients in other machines on the local network. I know about ssh -X and that is ...
ΤΖΩΤΖΙΟΥ's user avatar
20 votes
4 answers
25k views

Screen brightness isn't taking effect on a Lenovo Z570

My Lenovo Z570 has two GPU's, nVidia and Intell. Brightness control has no effect what so ever over the screen brightness, and because I've had some major issues in the past when I was trying to ...
Valentin's user avatar
  • 471

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