Unable to get xmodmap working after suspend

Question

I am using Ubuntu 14.04.

I have a custom Xmodmap keyboard layout. However, when I resume after suspend, the layout is gone.

I have tried all things which were mentioned in the answers to this question: How do I set Xmodmap on login?

Neither using .xinitrc nor adding a command in the startup apps works. Well, they do work after a usual reboot, but not after suspend.

Is there a file that is always execute after loggin in, no matter if it was a reboot or a resume from suspension?

Answer 1

@i08in https://askubuntu.com/a/92235/72576 seems to do the job.

This is what I ended up with on my Debian jessie, KDE.

/etc/pm/sleep.d/20_xmodmap.sh

case "${1}" in
    resume|thaw)
        su $USER -c "sleep 3; /usr/bin/xmodmap /home/$USER/.Xmodmap" &
;;
esac

Note: At first it may seem to not work, but just give it a minute or so. There seems to be something with X that cuses this delay, though I haven't cared enough to check on it... See https://superuser.com/q/626769/185360 for more info.

Answer 2

All of it is a bullshit code all around. Are you guys really don't have no problems with an XAUTHORITY and DISPLAY? I don't believe that. So here's the really working solution (remember to replace $USER with your username):

step 1. Generate your ".Xmodmap" file with the mapping, in my case it is:

keycode 96 = XF86AudioLowerVolume
keycode 95 = XF86AudioMute
keycode 76 = XF86AudioNext
keycode 75 = XF86AudioPlay
keycode 74 = XF86AudioPrev

and place it under /home/$USER/.Xmodmap path

step 2. Create a startup application preference (go to Startup Application Preferences from super-button search menu) and add the following:

Name: xmodmap
Command: /bin/bash -c "sleep 7 && xmodmap ~/.Xmodmap"
Comment: 

and Save it. And close the Startup Application Preferences

step 3. now go to /usr/lib/systemd/system-sleep folder, like this:

cd /usr/lib/systemd/system-sleep 

step 4. create a file named "xkeyboard.sh", you can do it like this (sudo rights are required):

sudo touch xkeyboard.sh

step 5. now get your $XAUTHORITY variable value, you can do it like this:

echo $XAUTHORITY

in my case it returned me the following:

/run/user/1000/gdm/Xauthority

write it down somewhere

step 6. open up your newely created file for editing, you can do it like this:

sudo nano xkeyboard.sh

step 7: paste this code. Make sure to replace $USER with your username and $XAUTH with the variable you wrote down before:

   #!/bin/bash

    echo "Running xkeyboard.sh with argument: $1" >> /tmp/xkeyboard.log
    
    if [ "${1}" == "pre" ]; then
        echo "pre" >> /tmp/xkeyboard.log
        # Nothing to do for pre-sleep
    elif [ "${1}" == "post" ]; then
        echo "post" >> /tmp/xkeyboard.log
        export DISPLAY=:0  # Set the DISPLAY variable
        export XAUTHORITY=$XAUTH
        /bin/bash -c "sleep 7 && xmodmap home/$USER/.Xmodmap" >> /tmp/xkeyboard.log 2>&1
    fi

in this code i've added up logging to /tmp/xkeyboard.log file, so if keyboard mapping doesn't work, you can go there and checkout what's the matter.