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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109
votes
6answers
41k views

Why is Wayland better?

As recently announced by Mark Shuttleworth, Ubuntu will be moving towards using Wayland as its display manager. What are biggest differences between X11 and Wayland? Why will Wayland make Ubuntu ...
41
votes
10answers
27k views

How do I remap the caps lock key?

In the past the past I used to use xmodmap to prevent the Caps Lock button from working, and then tell Launchy to handle the key press instead. I can't seem to do this anymore. What is the best way ...
9
votes
2answers
28k views

Trackpoint and Clickpad: enable buttons and scroll (Lenovo T440s) [closed]

I just got a Lenovo T440s which is equiped with synaptics touchpad. By default there's no middle button and right button is at right bottom corner of touchpad. I'm used to the combination of ...
15
votes
6answers
49k views

Run application on local machine and show GUI on remote display

Is it possible to run an application on my local desktop but display the GUI on my laptop (remote X)? I'm wondering if it is possible to emulate a dual-monitor setup using 2 distinct lan connected ...
12
votes
3answers
40k views

How do I disable intel graphics in a hybrid graphics setup?

I have a Dell Vostro 3700 version A10. The relevant bits from lspci -v | grep VGA are: 00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 18) 01:...
11
votes
5answers
10k views

How can I toggle between single and dual monitor setup?

I have two monitors working just right with nvidia driver. There are times, however, where I want to have just one monitor and other times where I need two: I must open NVidia XServer Settings, go to ...
17
votes
3answers
5k 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 ...
11
votes
2answers
13k views

How to run 2 X sessions with different display managers?

I read about the virtual terminals a little and that gave me an idea. I searched for a way to have two X sessions simultaneously. I had a look at these sites : 1. How to run multiple user X sessions ...
6
votes
2answers
15k views

DisplayLink USB 3.0 Not working on Ubuntu 14.04LTS

I noticed this might be yet another DisplayLink outcry - but I thought I give it a go anyway. So the usual story - I have got a DisplayLink adaptor Kensington USB3.0 Video Adapter, and doesn't look ...
21
votes
2answers
7k views

How can a script detect a user's idle time?

I want to check, inside a bash script, how long the user of a X session has been idle. The user himself does not have to be using bash, but just X. If the user just moved the mouse, for example, a ...
20
votes
6answers
3k 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 ...
13
votes
1answer
23k 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 ...
12
votes
3answers
10k views

How do I run a graphical application on a remote server when logged in through SSH?

I am trying to run gedit from an SSH terminal on Windows, connected to an Amazon EC2 instance running Ubuntu 12.04 Server and I am getting this error: Cannot open display: How do I fix it?
12
votes
1answer
2k 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 (...
8
votes
2answers
3k views

How to remove Intel's Open Source Technology Center Driver?

I have downloaded and installed Intel's drivers from this link, following all instructions: https://01.org/linuxgraphics/downloads/2013/intelr-linux-graphics-installer-version-1.0.2 However, I would ...
6
votes
2answers
6k views

External Monitor Resolution doesn't go above 1024x768

I am trying to use a 24" external monitor as the primary monitor for my Asus EEE netbook. When I connect it, it works properly, except the max resolution available is 1024x768. Usually, I'd go into ...
8
votes
1answer
6k views

How to get Xorg to ignore certain input devices?

What needs to be done so that when a specific input device is plugged in via USB it is not automatically used for input by X? I still want the /dev/input/* device nodes automatically created, but don'...
5
votes
1answer
130 views

How to open a file in the same display I am working it?

I have connected a LCD to my laptop. When I try to open a file in Nautilus, the target application opens in my laptop display, rather than the second display (in which nautilus window is open). I don'...
2
votes
1answer
43k views

X Error of failed request: BadRequest (invalid request code or no such operation) [duplicate]

Possible Duplicate: How to fix error with ATI driver “Error of failed request”? Though this question is asked before for 11.10, it's still unanswered. I am using ubuntu 12.04 (on Dell Inspiron ...
11
votes
2answers
1k views

Will Mir display server be able to launch X11 applications?

I've checked the wiki but Xorg is not even mentioned there.
11
votes
2answers
41k views

Where is Xserver log file located?

My Ubuntu 10.10 sometimes totally freezes. I suppose that it is somehow related to my graphic card and would like to check Xserver log. Where is this file located ?
10
votes
2answers
35k views

Nvidia driver installed successfully, but not activated

My Ubuntu 12.04 only shows up black screen when starting up some days ago suddenly. Since I can desktop through recovery mode (resume in recovery mode, and the resolution is wrong), I believe there's ...
10
votes
2answers
22k views

How do I create the .Xauthority file?

I don't have a .Xauthority file in my home folder. I want to create it, please tell me the steps to do so in ubuntu 10.10. Thank You!
9
votes
3answers
7k views

Simple switching between multiple monitor configurations

Context I use Ubuntu 11.04 on a laptop. I have three monitor configurations: Work: disable laptop monitor, use external 1920 X 1200 monitor Home: disable laptop monitor, use external 1680 x 1050 ...
8
votes
2answers
2k views

Map caps-lock key to middle mouse click

Since I rarely use caps-lock, I'd like to map the key to a middle mouse click instead. I would also like to map Alt+Caps Lock to the original function of the caps lock key, should I ever need it. I ...
7
votes
2answers
10k views

How do I install the X.org Radeon/ATI driver?

I recently downloaded version 7 of the Radeon/ATI X.org Driver from this link: http://cgit.freedesktop.org/xorg/driver/xf86-video-ati My question is how do I compile and install it? I don't like ...
7
votes
5answers
21k views

Cannot make NVIDIA driver work with Ubuntu 12.10

I seem to have a problem similar to many but I didn't manage to get it solved: have a Lenovo N581 with an NVIDIA GeForce 610M have just installed a fresh Ubuntu 12.10 64 bits, + KDE and am trying to ...
7
votes
4answers
4k views

How do I restore triple tap to emulate the middle click?

I've upgraded from 11.04 to 11.10 but the ability to tap with three fingers on the touchpad to achieve a middle mouse click has disappeared. When a mouse is plugged in the middle button click works ...
6
votes
2answers
2k views

Can I accelerate mouse sensetivity over the standard maximum?

I've used "Mouse Preferences" window to set mouse pointer acceleration and sensitivity sliders to their maximums, but I am still not satisfied with how fast does mouse pointer move (I've got a very ...
5
votes
2answers
13k 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 ...
4
votes
3answers
31k views

Black Screen on Login

I have serached around, but no fix could help me. Here's what happened: A few days ago, for no reason, I couldn't see the login screen on my Ubuntu 12.04. nor do anything but reboot using CTRL+ALT+...
8
votes
1answer
5k views

Resolution changes after startup/login

I have been trying to use Gnome 3.8 / 3.10 / 3.12 since Ubuntu Gnome 13.10 and no matter what I do it changes the screen resolution to 720p, instead of 1080p, so I have to manually set 1080p every ...
6
votes
2answers
1k views

Disable three finger tap of Apple Trackpad in Ubuntu 12.04

I have configured Apple trackpad on Ubuntu 12.04 in xorg.conf as suggested here. I have also added "TapButton3" "0" but it does not disable three finger tap. My Question How to disable three ...
4
votes
3answers
20k views

How to change the color depth?

I have Ubuntu 10.04 installed on a Dell C600 and the highest available resolution is 800x600. From my previous I remember 1024x768 would work after setting the colour depth to 16bit, but there is no ...
4
votes
2answers
12k views

“/etc/X11/X not executable” error when startx

What happened I wanted to install KDE and Gnome along with Unity. I don't know when I installed gnome-shell on my Ubuntu 12.10, but I installed KDE minimal desktop just now using sudo apt-get ...
4
votes
4answers
12k views

Nvidia drivers seem to ignore customized xorg.conf in 13.10? How to configure?

I just upgraded from 13.04 to 13.10 and now I'm having a problem with the nvidia X server settings: the changes I make don't stay saved after I restart the X server. I checked the xorg.conf (/etc/...
3
votes
1answer
738 views

Nvidia 840M driver installation Acer E5-571

After a lot of trying and installing I don't know anything more to I can do to get this running. I am having trouble installing the current Nvidia proprietary driver 346.35 on a Nvidia 840M graphics ...
3
votes
2answers
3k views

Dual monitor setup, why does NVidia 340 Prime only detect one monitor?

I'm using: Alienware M14xR2 laptop running Ubuntu 14.04 2 * DELL U2412M monitors attached via HDMI and Mini Display Port Optimus graphics (Intel + nVidia GeForce GT 650M) running with nvidea-340 and ...
1
vote
4answers
3k views

Xorg Segmentation Fault - seems to be relevant to evdev [closed]

Since yesterday, after selecting to update some packages recommended by the update manager, I am not able to use my ubuntu 11.10. Everything seems to be working fine, until I move the mouse. As ...
1
vote
3answers
5k views

How can I get the Nvidia driver to drive my projector at 1280x720?

I recently purchased a BenQ W600+ projector that I'd like to use with my ThinkPad T410 with Nvidia graphics running Ubuntu 12.10. The native resolution of the projector is 1280x720 (i.e. 720p), but I ...
11
votes
9answers
23k views

xorg.conf changes from nvidia-setting have no effect after reboot

I have upgraded from 13.04 to 13.10 today and everything works smooth apart from one thing. I have a dual monitor setup and every time reboot the screens have switched places (left screen on right ...
7
votes
1answer
5k views

How do you run a GUI application without GUI (gui application as daemon on headless server)?

Okay, so I want to run a GUI application as daemon on a server without X. The application is a java program. It can be configured in a configuration file so the GUI is not necessary to use it. ...
6
votes
1answer
6k views

Ubuntu 14.04 two Nvidia cards triple screen Xinerama with proprietary driver, third screen black and X cursor [closed]

I am having some issues getting my third screen working properly. I had triple screens working fine on 12.04, using 2 nvidia cards. Did a fresh install of 14.04 and having no end of problems getting ...
5
votes
1answer
19k views

gedit “cannot open display” , on remote computer , using ssh - Ubuntu 12.04 [duplicate]

Possible Duplicate: How do I run a graphical application on a remote server when logged in through ssh? I am getting the following error message when using ssh to log into a remote machine: ...
4
votes
1answer
2k views

How to configure splash screen after plymouth

I have configured my splash screen for plymouth - and it works perfectly. I've also configured the display manager (I'm using gdm). In between these two I get a very brief splash screen - a kind of ...
3
votes
4answers
3k views

Cannot switch keyboard layouts [closed]

My default keyboard layout is Norwegian (from the 12.04 installation procedure). But I also want to use Icelandic. Two layouts in the "system settings" → "keyboard layouts" is one too many. I ...
3
votes
3answers
920 views

Doesn't boot after fresh install

After fresh install of oneiric 11.10 nothing displayed during boot process, but I still can switch to tty's. I made apt-get update/upgrade from tty and tried to reboot. Nothing changed. 'service ...
3
votes
1answer
9k views

How to understand nvidia-settings save configuration options?

After installing a proprietary driver for my nvidia graphics card gksu nvidia-settings was run from terminal Through which have checked the configuration of my graphics card but am unsure where ...
3
votes
2answers
19k views

How to change xorg.conf file with permission?

I want to edit the /etc/X11/xorg.conf file but I can't save the file. It says "permission denied." How can I edit the file?
3
votes
3answers
798 views

NVidia driver, normal boot results in blank screen, recovery boot works fine

Ok, so, like many others I'm having a lot of trouble with NVidia drivers, in this case, the new 340.32 ones downloaded from here (http://www.nvidia.com/object/unix.html), but I've had these problems ...