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21
votes
2answers
35k views

Is there a command to list all open displays on a machine?

When SSH'd locally into my computer (don't ask, it's a workaround), I can't start graphical applications without running: export DISPLAY=:0.0 If I run this first and then run a graphical ...
1
vote
2answers
3k views

Starting Qt Application On Startup for Embedded Linux

I'm trying to get a Qt application to launch immediately after booting up. When booted, the Linux image does nothing more than launch an X server and a terminal. It also has the cron daemon running in ...
3
votes
1answer
158 views

Can one disable tap-to-click in X server configuration without “InputClass” sections?

I want to configure my system so that tap-to-click is disabled on the touchpad. (It's running a rather old version of ALTLinux distro with xorg-server-1.4.2-alt10.M41.1.) I'm interested in a solution ...
2
votes
1answer
91 views

How to let a daemon prompt for a password (in Xsession, keyloggersafe)?

Exposition: Working inside an XSession. Some (background) deamon needs to prompt me for password input. How can I make the daemon to prompt me for a password using a popup in the Xsession? ...
2
votes
1answer
520 views

Can one disable tap-to-click in X server configuration, without synclient?

I want to configure my system so that tap-to-click is disabled on the touchpad. (It's running a rather old version of ALTLinux distro with xorg-server-1.4.2-alt10.M41.1.) The most popular advice I ...
5
votes
1answer
111 views

emulate key-combination with xdotool

I am using Xephyr as a nested X server. When I am in Xephyr window and pres the key combination Control_L+Shift_L, Xephyr grabs my input (mouse, keyboard). This grab can be released with ...
3
votes
1answer
1k views

How to determine if X server runs with root privileges

This is a one-liner: Is there a way/command to check if the X server is run as root or as user? This was supposed to be a one-liner but alas... I recently upgraded my Arch Linux box. After the ...
2
votes
3answers
2k views

“Could not connect to display” in one user account

I have a GUI application written in Qt and I wanted to run tests by ssh (or Jenkins). There is only one user account, which allows to run it in display mode (ofc when I previously do "export ...
2
votes
1answer
1k views

Installing KVM on CentOS 6.4 without GUI (yet)

I've installed CentOS 6.4 from the 'minimal' iso, so it doesn't come with a GUI. Will this question's answer allow me to install KVM, or do I need to install KDE or X-server or something first?
2
votes
3answers
2k views

Lost mouse pointer in XServer

Have tried many windows managers including TWM, xfce and Gnome, but my mouse pointer is gone. It is invisible, but it performs all the actions. If I do the right click the context menu opens and this ...
1
vote
1answer
55 views

Get report of the gui application processes

I want to list main applications processes report in this format ps -e -o pid,comm,pmem,pcpu,uname To filter main GUI applications wmctrl -pl is the only way I can get processes ids.its great if ...