Dear maintainers,

I faced a strange issue with OnBoard, already reported upstream
(https://bugs.launchpad.net/onboard/+bug/736269): sometimes, the AltGr
button does not work.

What it exactly means:
- when clicking on AltGr, symbols on keys do not change
- left Alt key becomes grey one second after first click on AltGr

Also, a "side bug" maybe, sometimes the OnBoard keyboard layout
automatically changes to Qwerty… (I could not find another report of
this issue). Restarting OnBoard was enough to get the proper layout back.

I installed OnBoard two days ago. I faced these issues yesterday and the
day before (I rebooted between these two attempts), running Bullseye
with Cinnamon, and could not find a way to solve this. Today, I rebooted
again, added a new keyboard layout, started OnBoard, and AltGr works
properly! Obviously, I immediately removed the new keyboard layout,
restarted OnBoard, but the issue has definitely gone, strange.

For information, the original keyboard layout was pc105, fr, latin9 as
reported by `setxkbmap -query`.

I realize that this bug report will not help a lot to fix the issue, but
at least someone could benefit of the same workaround.

Regards,
Yvan