How can I sort out Xephyr's keyboard mapping?
Solution 1:
I found Bug 19365 which solved my problem:
Starting Xnest / Xephyr with -kb.
Solution 2:
The -kb option doesn't work in Ubuntu 10.04. Here's what worked for me:
Xephyr -keybd ephyr,,,xkbmodel=evdev -ac -screen 800x600 -br -reset -terminate :1
Solution 3:
After more unsuccessful googling, man setxkbmap finally pointed me into an easier solution:
USING WITH xkbcomp
If you have an Xserver and a client shell running on different computers and XKB configuration files on those machines are different you can get problems specifying a keyboard map by model, layout, options names.[...] You can solve this problem by running the xkbcomp on the client side too.[..] For example, the command
setxkbmap us -print | xkbcomp - $DISPLAY
makes both steps run on the same (client) machine and loads a keyboard map into the server.
That is,
-
launch Xephyr:
Xephyr -ac -reset -screen 800x600 -retro :50 &(no need to provide keyboard info)
-
and configure the new xsession:
setxkbmap de -print | xkbcomp - :50(you need to know your keyboard layout)
Note: setxkbmap is your friend, and from version 1.2.0 the useful -query option is available to help you troubleshooting your keyboard (see the corresponding patch log).
Solution 4:
You can also run xkbcomp $DISPLAY :1 in X session in which Xephyr was started. This command will copy keyboard map from current server to your newly created. I use it like this:
Xephyr -screen 800x600 :1 > /dev/null &
sleep 2 && xkbcomp $DISPLAY :1
DISPLAY=":1" ./runcommand
Solution 5:
setxkbmap -model evdev -print | xkbcomp :100 :200
If you use Xephyr with xpra and you have incorrect keyboard map. If you see strange situation: Down key worked as enter (down arrow as break line), up arrow not working - use that command for set true xkb map.
:100 - Display number with control of xpra
:200 - Display number control of Xephyr
May be that command help, if you use x2go and mate desktop environment (if x2go settings keyboard on client turned off)