Questions tagged [xorg]
X.Org Server (commonly abbreviated to Xorg Server, XServer or just Xorg) refers to the X server release packages stewarded by the X.Org Foundation, which is hosted by freedesktop.org, and grants public access to the standard X Window releases for the efforts of the free and open source software community.
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How do I fix a "cannot open display" error when opening an X program after ssh'ing with X11 forwarding enabled?
After launching the X11 app (XQuartz 2.3.6, xorg-server 1.4.2-apple56) on my Mac (OS X 10.6.8), opening an terminal in X11 and running xhost +, I then ssh -Y to my Ubuntu 10.04 VM (running on VMware ...
70
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6
answers
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Detecting currently active window
The linux commandline tool wmctrl allows you to list all windows, or all desktops, among other things. In the desktop-listing mode, the current desktop is marked with an asterisk.
I need a tool that ...
70
votes
1
answer
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What is the difference between .Xresources and .Xdefaults?
These two files seem to have the same function. What is the difference between the two if any?
65
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2
answers
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How can I view the WMClass attribute of a window in Xorg (linux)?
I am trying to find a workaround for incorrect grouping of windows in Docky, and I believe the problem lies with the WMClass attribute that is set for each window. However, I do not know how to view ...
63
votes
8
answers
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Alt+click-drag window resizing on a Mac? (Similar to X-Windows)
Is there a way I can get this behavior on Mac OS?
alt + right-click-drag will resize the window, relative to where you've clicked within the window and the window's center
alt + left-click-drag will ...
59
votes
9
answers
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How do I find out my screen resolution from a shell script?
How do I find out my screen resolution from a shell script?
43
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5
answers
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Per-application window scaling in Xorg for high dpi display
I am running Gnome Shell with a 4k monitor and there are a few applications that I use that don't scale at all with the high resolution.
Here is an example of LMMS, an application that hasn't yet ...
42
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6
answers
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NumLock is completely useless, and I want to disable it completely on Linux
Forget all the rants about Caps Lock, Num Lock is the most useless key of them all. It's never, ever useful. You don't want to use your numpad as an arrowpad, since the arrows are 1cm away from it. ...
38
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5
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Get display resolution from the command line for Linux Desktop
I'm looking for a method of reporting display resolution. I want to set up scripts to launch rdesktop, and I want to launch it on several machines with different resolutions, so I want a way to ...
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6
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How to get the display number I was assigned by X
From X(7) man pages
DISPLAY NAMES
From the user's perspective, every X server has a display name of the form:
hostname:displaynumber.screennumber
[...]
...
35
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1
answer
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How to apply/reload X settings after changes to xorg.conf.d configuration files
I have added a synaptics.conf file under /etc/X11/xorg.conf.d/50-synaptics.conf. Do I need to restart X to see it applied?
31
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6
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Binding Super+C Super+V to Copy and Paste
For some time I've been interested in binding the Windows Key (Super_L) on my keyboard to Copy and Paste for no other reason but convenience and consistency between my desktop and my MacBook.
I ...
28
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2
answers
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What does xfce4 power-manager do in "presentation mode"?
What exactly does the xfce4-power-manager if I press the button for presentation mode?
Is it called X function? Or what else?
Any ideas?
26
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2
answers
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Run wine totally headless
I want to run wine headless and avoid the error message:
Make sure that your X server is running and that $DISPLAY is set correctly.
Is there a way or do I have to route/forward it to some output? ...
26
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6
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How to find out xorg version? or "what's my xorg version?"
ATI docs says i need:
XOrg 6.9, 7.0, 7.1, 7.2, 7.3, 7.4, 7.5 or 7.6
Xorg -version says:
X.Org X Server 1.11.1.902(1.11.2 RC 2)
[...]
X Protocol Version 11, Revision 0
[...]
xorg-server 2:1.11.1....
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3
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Setting up X11 forwarding over SSH on Windows 10 Subsystem for Linux?
I have a Raspberry Pi 3 Model B+ connected to my local network and I can SSH into it with no problems. This does cause some problems though as everything is done on the command line.
What I would ...
25
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5
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How do I get X11 Forwarding to work on Windows with PuTTY and Xming?
I've always wanted to get X11 Forwarding to work with PuTTY, and the X Window System I'm using is Xming. When I have Xming running and I establish a new connection to my server, I receive the ...
25
votes
3
answers
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debian/ubuntu - invert all colours in desktop session (colors)
Sometimes I need to flip from a light colour scheme to a dark one quickly, and I need it to apply not just to the desktop theme but also to any webpages that are open etc.
On the Mac there's a neat ...
24
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3
answers
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How can I set environment variables for a graphical login on linux?
I'm looking for a way to set arbitrary environment variables for my graphical login on linux. I am not talking about starting a terminal and exporting environment variables within the terminal, ...
23
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5
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Updating screen session environment variables to reflect new graphical login?
I use linux, and I like to do all my command-line work within a single screen session, so that I can restart my graphical login and such without losing my terminals. However, when I log out and back ...
22
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3
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WSL2 X11 programs "disappear"
I'm mostly very happy with WSL2 on Windows 10, having just switched from Mac. I run X410 on the Windows host and start X11 apps inside WSL by setting
export DISPLAY=$(cat /etc/resolv.conf | grep ...
22
votes
5
answers
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Browser instead of window manager?
Is it possible to have just a browser (for example, just a canvas that renders with webkit) running on top of X11 (or any other way in Linux) as my window manager, as if I'm viewing my normal web ...
22
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2
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Is Cinnamon a desktop environment or a window manager? (Or both?)
As far as I understand it:
X11 is how you draw primitive things;
A (compositing) window manager is something that uses X11 to provide the tools for drawing more complex things, and position them in ...
22
votes
3
answers
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Disable Unplugged Displays (xrandr)
I have a laptop with two video outputs that I use when I am home (HDMI1,VGA1). To enable them, I do this:
xrandr --output HDMI1 --right-of LVDS1 --auto
xrandr --output LVDS1 --off
xrandr --output ...
21
votes
3
answers
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When trying to connect remote clients to Cygwin/X, I get 'Authorization required, but no authorization protocol specified'
I just installed Cygwin/X and I launch it with startxwin -- -listen tcp to allow remote clients to connect to it through tcp.
However, remote clients fail to connect to the remote display with the ...
20
votes
2
answers
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Speeding up remote X sessions
I have a remote machine running Ubuntu 11.10 Server, to which I connect via SSH from OS X 10.7.3:
Host remote.example.com
ForwardX11 yes
ForwardX11Trusted yes
Sometimes I want to launch a GUI ...
20
votes
4
answers
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How do you start a program after X has started?
There's a little app called F.Lux that sets your screen temperature based on the time of day. The Linux version is a little spartan with just a console interface but it works perfectly well.
Where ...
19
votes
5
answers
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Emulating extra displays
I have a system with a single monitor, I would like to test the an xmonad configuration that is designed for multiple monitors. Is there any way to emulate a system with 3 monitors using something ...
19
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2
answers
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Cygwin/X and Windows Subsystem for Linux
I have a functioning Cygwin installation on my Windows 10 device (a Surface 3, in case that matters), including a functioning Xorg windowing environment. I've just begun to experiment with with the ...
18
votes
5
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Remap Keys in Linux
I'd like to switch my Ctrl and Alt keys under Linux (to make it more Mac-like). How do I do this?
If it helps, I'm running Ubuntu 9.04.
18
votes
1
answer
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Starting and stopping X11 and LXDE from command line
I have a Raspberry Pi with Debian Wheezy (Raspbian) and so far I've managed to learn quite a lot about Linux just playing around, but I have a few questions for all you seasoned Linux pros out there.
...
17
votes
3
answers
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Remap keys without xmodmap or any X tools
Due to a coffee accident some numbers of my laptop's keyboard stopped working. I used xmodmap to use F1, F2, etc, as replacements and saved the configs to ~/.Xmodmap.
However, that caused a few ...
17
votes
3
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X11 forwarding from Amazon EC2 AMI
local$> echo $DISPLAY
:0.0
local$> ssh -X -i PEMFILE ec2-user@AMAZONEC2_AMI
[ec2-user@REMOTE_AMI ~]$ echo $DISPLAY
[ec2-user@REMOTE_AMI ~]$ sudo grep X11 /etc/ssh/sshd_config ~/.ssh/...
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6
answers
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How to prevent the monitor from turning off in Linux
I have to start a QT-Program on the screen on startup in Linux Mint 9.
The monitor that is displaying the program turns off after an unknown amount of time.
I already deactivated the turnoff in the ...
16
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4
answers
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How do I set the size of the X mouse pointer in the Windows Subsystem for Linux
I am running Ubuntu 16.04 on the Windows Subsystem for Linux on Windows 10 (with the Creators update). I have an X server (VcXsrv) running in Windows and from bash I open an lxterminal on that X ...
16
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1
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What is my X11 doing with Ctrl-Period and how can I disable it?
How do I disable whatever X-window-system-wide setting is intercepting Ctrl-Period for some kind of special input popup?
More detail: I'm trying to bind an emacs command to Ctrl-Period (C-.), which ...
16
votes
4
answers
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How do I PROPERLY map a keyboard key to a mouse button?
Question summary: I want one of my mouse buttons to be registered as the left Windows button Super_L by X11.
In my window manager, I can move windows around by holding the "left Windows button" (Left ...
15
votes
4
answers
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enabling sticky keys under xorg (awesome desktop manager)
I would like to enable "sticky modifier keys" under archlinux + awesome, and I haven't found the correct info.
15
votes
2
answers
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invert colors on X (or xfce4)
Is there a way to invert colors in X. It would be even more useful if the answer was something I could bind to a keyboard shortcut(a command and not a setting that will require a restart if X).
15
votes
2
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How do I restart a frozen screen in Ubuntu without losing any open windows?
I had a device running Ubuntu 12.04 LTS have its screen freeze. Generally I have simply jumped onto an available tty, i.e. Ctrl-Alt-F1 and executed the command /etc/init.d/lightdm restart or service ...
15
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1
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What should my $DISPLAY variable be and why is it not set?
I am using Mac OS X 10.10.2 Yosemite and SSHing into a remote machine but cannot get X11 forwarding to work. When I ssh -X RemoteMachine, I get :
$ echo "$DISPLAY"
$
to return nothing. ...
15
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2
answers
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What XMonad Configuration Best Replicates Default Ion3 Behavior and Feature Set?
Not being very familiar with Haskell and lamenting that Ion 3 is now abandonware, I am curious if anyone out there has found a way of replicating the default Ion 3 behavior and aesthetics in XMonad. ...
14
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Xorg: How can I map AltGr to the CapsLock Key (to toggle 3rd level symbols)
as many others I don't need CapsLock. I want to reassign it such that it has the function of AltGr.
I use Kubuntu 9.10 but I think there must be a solution which is distribution independent.
I ...
14
votes
5
answers
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Linux: How to send message to local user logged into X11?
Is possible to send a message (popup window or something) to local user logged into X (xdm, fluxbox) from console ? For example: user1 is logged and using X/fluxbox, user2 logging into the same box by ...
14
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9
answers
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"Detach" and "Reattach" xterms across X sessions?
Is there a way to save/detach an xterm (or another window), and reopen/load/reattach it on a different X session on the same machine ?
What I'm trying to achieve is "move" running xterms between two ...
14
votes
5
answers
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how to set the mouse speed very low on ubuntu
I set the mouse acceleration and sensitivity levels to minimum in System->Preferences->Mouse but with the new mouse I have, even those settings are too fast. Is there a way to further reduce the speed?...
14
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4
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On Ubuntu 9.10, where is the xorg.conf file in Karmic Koala?
I am trying to change this xorg.conf file that I used to modify under Ubuntu 9.04, so it can have the higher resolutions of my monitor. Under 9.04, the monitor was unknown, and I had to key in all ...
14
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5
answers
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How to use xrandr to crop part of my monitor
The top of my monitor is physically obstructed by a bezel. I want to use xrandr to redefine the display resolution (height only) to restrict it to the viewable portion of the monitor.
The monitor ...
14
votes
1
answer
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Is my keyboard "Generic 101-key PC" or "Generic 105-key PC (intl.)" or what?
How can I reliably and authoritatively determine which of the predefined "generic" X11 keyboard layouts is the best choice for my physical device? There must be a better way than counting keys and ...
14
votes
3
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Triple monitor setting in Linux with USB-HDMI adapter
I'm trying to set up a triple monitor desktop at my office using Fedora 17, but it seems impossible, let me explain the setting:
Laptop ASUS K53SD with 2 graphic cards, Intel and nVidia (Screen ...