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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16
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4answers
35k views

Open a window on a remote X display (why “Cannot open display”)?

Once upon a time, DISPLAY=:0.0 totem /path/to/movie.avi after ssh 'ing into my desktop from my laptop would cause totem to play movie.avi on my desktop. Now it gives the error: No protocol ...
17
votes
4answers
5k views

Can I launch a graphical program on another user's desktop as root?

Following are other questions which I think I need to know: From a non X Session? (meaning root isn't logged into X) If multiple people were logged in on X, could I auto-detect who was on which ...
57
votes
5answers
117k views

How to forward X over SSH from Ubuntu machine?

I have a machine running Ubuntu which I SSH to from my Fedora 14 machine. I want to forward X from the Ubuntu machine back to Fedora so I can run graphical programs remotely. Both machines are on a ...
28
votes
7answers
8k views

A tool for automatically applying RandR configuration when external display is plugged in

is there a tool which enables one to: remember current RandR configuration (position, orientation, resolution etc) on per-monitor basis, automatically apply last known good configuration as soon as ...
23
votes
7answers
11k views

How do I get current keyboard layout?

I'm wondering is there any command line tool, that returns current keyboard layout. I have XkbLayout set to us, ru. Update: setxkbmap returns layout settings, not selected layout. E.g.: $ setxkbmap ...
4
votes
2answers
3k views

Howto find my xorg.conf. Where is it?

I can't find my xorg.conf. There is no xorg.conf file by default in Ubuntu 11.04. If I run: "whereis xorg.conf" I am seeing: xorg: /usr/lib/xorg /usr/lib64/xorg /usr/include/xorg may be I just can ...
29
votes
2answers
6k views

Pasting X selection (not clipboard contents) with keyboard

I'd like to be able to paste the X selection using the keyboard. Currently I have to use the middle mouse button to do this. I gather that faking a middle mouse button press is fairly easy to do, ...
20
votes
4answers
5k views

How to enable killing Xorg with Ctrl+Alt+Backspace

I don't remember why they did this, but at one point X.org decided that disabling CtrlAltBackspace to kill it was a good idea. I know there's a way to re-enable it but I don't remember how. Can ...
12
votes
2answers
2k views

Disable mouse (not touchpad!) in Xorg while idle

I am an avid keyboard user, but I still need the mouse every now and then. To minimize the hand travel, I have the mouse located below my keyboard. (On a side note, using the mouse this way feels ...
10
votes
2answers
542 views

Set Xorg to use only part of the screen

My screen has 1280 x 1024 resolution. But unfortunately, rightmost belt of 200 pixels is damaged and unable do display any image. How can I set that the Xorg will treat my screen as 1080 x 1024 ...
6
votes
1answer
3k views

Show a notification across all running X displays

Using the command line, I'd like show a notification on every running X display. ( and running console ) Something like: notify-send-all 'Warning' 'Nuclear launch in 5 minutes, please evacuate' Is ...
15
votes
1answer
7k views

What does DISPLAY=:0.0 actually mean?

What does the :0.0 actually mean? I know that :0 is the first X server that is started on a local machine, :1 the second, etc. But what is that .0 part after :0? Do other combinations exist? (e.g. ...
6
votes
2answers
2k views

Edid information

I want to gather the Edid information of the monitor. I can get it from the xorg.0.log file when I run X with the -logverbose option. But the problem is that If I switch the monitor (unplug the ...
23
votes
4answers
4k views

Is there a way to communicate with someone at their desktop?

My wife is sitting at her home desktop, alpha, which is running a recent version of Ubuntu. I am on a bus, using ConnectBot on my G1 phone, and can SSH into alpha from wherever I am. For complicated ...
13
votes
4answers
12k views

What is “.xsession” for?

What is the purpose of the .xsession file in the home folder? What should be put in there? The desktop environments don't use that file and for the X startup from the tty there is .xinitrc.
10
votes
1answer
1k views

Invert colors of the active window

Sometimes I work in low light and I need to invert the color of specific windows to reduce my eye strain. This could be my pdf viewer to web pages for reference work. I know how to invert the entire ...
9
votes
4answers
3k views

Reassign Ctl and Alt keys - xmodmap error

I am attempting to remap my keyboard in order to make emacs usable - my ergonomic keyboard puts its single Control key in an isolated 4-key island way off to the left. The OS is debian squeeze. Here ...
5
votes
2answers
986 views

Preventing access to TTY when X is killed

Assume I start an X server manually from a virtual console /dev/tty1 with xinit or startx, with the line id:3:initdefault: set in /etc/inittab. The X server gets run and put on another virtual ...
3
votes
3answers
567 views

How to make Compose work in GTK and Qt apps?

I used Gnome for a long time, but preferred vanilla X input method (xim) over the default GTK behaviour. I just set GTK_IM_MODULE and QT_IM_MODULE enviroment variables to xim, and didn't have any ...
9
votes
2answers
2k views

Map “windows” key on keyboard to “ctrl”

I am on Ubuntu and using a Microsoft keyboard. I want to map my Win key to a Ctrl key. How can I do that?
9
votes
2answers
391 views

Screen doesn't always shut off on its own

It seems like when I have certain web pages focused, my screensaver will kick in, but the screen won't turn itself off. Does anyone have any ideas why this might be? Is there a way to disable whatever ...
2
votes
0answers
978 views

Resolution problems with external monitor in ElementaryOS

The specifications are: sudo lshw -C video [sudo] password for cipricus: *-display description: VGA compatible controller product: RV380/M24 [Mobility Radeon X600] ...
1
vote
2answers
451 views

How can I set the keyboard right on X?

Note: forked of this per recommendation here. I made a foolish typo for UTF-8, and expected that when I fixed it, the keyboard on X would work right. Since making this errant change, I was no ...
6
votes
3answers
2k views

xorg memory leaks

On my desktop Xorg leaks a lot of memory. I use to let this machine on for days (weeks, months ...), but about once a week I'm forced to restart xorg, because it is taking too much memory. Am I the ...
5
votes
1answer
334 views

Swapping <esc> and <caps lock> in a way that persists with external keyboards

I have a file called ~/.speedswapper which contains the following: ! Swap caps lock and escape remove Lock = Caps_Lock keysym Escape = Caps_Lock keysym Caps_Lock = Escape add Lock = Caps_Lock ...
4
votes
2answers
708 views

How to troubleshoot the old X applications working incorrectly on modern X servers?

I have an old X application provided as a part of a complicated signal processing package. The application resides on the display-less server, and clients having different X-servers connect to it. On ...
4
votes
2answers
980 views

Installed Fedora in dual boot Windows desktop. Now I can't get full monitor resolution with my AMD Radeon HD 6450

I have a 1900x1080 resolution monitor, and after installing Fedora to create a dual boot machine, the maximum resolution Fedora 14 (previously only Windows 7 was installed) can achieve is 1280x1024. ...
3
votes
2answers
3k views

How to configure xorg.conf for widescreen VNC on headless Linux/Ubuntu?

I have a Ubuntu 12.10 Box configured to run headless. I've managed to boot X headless by a lot of trial and error but I still have a glitch: When booting using the monitor, it all works ok, widescreen ...
3
votes
1answer
2k views

change colour depth

How do I change the colour depth? It says online to edit the xorg.conf file, but I don't have that. I am running Debian XFCE on a Powerbook G4
2
votes
3answers
93 views

Weird behavior after upgrade

I upgraded my old computer and weird things have started happening. I successfully installed Debian and everything seemed to be fine but in a few days I noticed that after ~10 hours of work the ...
2
votes
2answers
5k views

not able to create xorg.conf file

I want to change my colour depth. I posted this, and got the following answer: Create an xorg.conf file by running Xorg -configure. Then edit the Depth entry in the Display subsection of the ...
2
votes
2answers
745 views

Why won't my X Server won't start as a regular user?

X won't start on my main machine. I can start it as root, but then it only logs me in as root -- I can't use my regular user account. When I start up, it flashes a black screen, then hangs at ...
1
vote
1answer
506 views

Determining keycode assignments for X.org on a PC

At some point around late 2008 to early 2009, some keycode values (apparently, for the keys that weren't on an XT keyboard) on a standard PC keyboard when running X.org under Linux changed. I don't ...
43
votes
9answers
30k views

How do I choose a graphics card for Linux?

I'm building or buying a new Linux system, and I'm trying to select the best graphics card for my needs. How do I go about making this decision? There's dozens of computer-gear review sites which ...
15
votes
7answers
5k views

Disable Keyboard & Mouse input on unix (under X)

How can one programmatically "freeze" the Keyboard & Mouse temporarily, so that no one could mess with the system? There are several possibilities where this is useful. For instance, I have a ...
14
votes
4answers
2k views

How is the linux graphics stack organised?

Can anybody explain(hopefully with a picture), how is the linux graphics stack organised? I hear all the time about X/GTK/GNOME/KDE etc., but I really don't have any idea what they actually do and how ...
12
votes
3answers
3k views

Sharing an X server (session) across computers

I have 2 computers (both running linux) and I'm currently using synergy to use them. This is great, but now I'm wondering, is there any way (is it possible? being worked on? tried and failed? ...
13
votes
6answers
7k views

Correlating /var/log/* timestamps

/var/log/messages, /var/log/syslog, and some other log files use a timestamp which contains an absolute time, like Jan 13 14:13:10. /var/log/Xorg.0.log and /var/log/dmesg, as well as the output of $ ...
12
votes
2answers
2k views

Getting a window's PID by clicking on it

Is there any package which shows PID of a window by clicking on it?
10
votes
4answers
5k views

Screen turns on automatically (xset dpms force off)

I am using xset dpms force off to manually turn my screen off to save power. However, it turns back on after some time (20 - 40 seconds). Distro: Ubuntu-Lucid Graphics: Intel 4500 MHD ...
12
votes
3answers
3k views

Command for forcing a pointer ungrab (captured mouse release)

Sometimes Firefox doesn't release the mouse after dragging, so I need to kill the application to force it to release its pointer grab. Is there any command to force an application to ungrab the ...
13
votes
2answers
2k views

How to disable the Forward/Back buttons on my mouse

My mouse has an unfortunate feature. On the left side, right where my thumb sits ever so gently when I'm using it, there are two buttons that are so sensitive a mere brush will make them click. I'm ...
5
votes
0answers
224 views

How to disable select-on-release right mouse button in Linux [duplicate]

We are having issues with mouse behavior in Linux. In Windows: In any application, to open a context menu and select an option: right mouse button down + release move the cursor to an option left ...
2
votes
1answer
441 views

What process created this window with no PID associated? [duplicate]

Possible Duplicate: What process created this X11 window? I need to kill a process that spawned a window which seems to have no PID associated with it. At least that is what xdotool says: ...
6
votes
1answer
285 views

Application-specific keymapping

In general, I want to make specific keymaps for application, that working only in it and doesn't affect any other app. For example, I already use my Caps key to toggle input language (via xorg.conf), ...
5
votes
2answers
4k views

How can I run a separate X session on a different physical display?

Here's what I need to do. I need to be playing a movie over HDMI to a television screen for my friends while I'm hacking on some personal projects over VGA to a smaller monitor. It's imperative that ...
4
votes
2answers
110 views

SSH - How to make X applications run on client?

I have the reverse problem that most people seem to be having. If I start an X application while logged into ssh, it displays on the server(host) machine instead of the client(local). This is the ...
3
votes
2answers
370 views

How to put some keyboard layout aside from layout switching ring?

What I need is to switch between Russian and English layout with my favorite shortcut (namely Shift-CapsLock) switch to Belarusian layout with another shortcut (say, Ctrl-RightShift, but actual ...
6
votes
2answers
502 views

Custom xkb layout in which one key creates two unicode code points

I am writing a new custom keyboard layout for Xorg, but there is one particular glyph which does not exist in Unicode. It is, however, easy to create it by using a standard letter plus a combining ...
5
votes
3answers
656 views

How to make gdm3 start X installed in a different path (or running X from a personalized path)?

I've built the entire Xserver from git for testing proposes using the build.sh provided by freedesktop.org as the easier method to compile all modules against the git tree, and installed under the ...