Onboard keyboard is crashing since latest sysupgrade

[dr.n]

After the latest sysupgrade the onboard keyboard is not working anymore (even after a reinstallation - previously working without any issues).

See also
https://bugs.launchpad.net/onboard/+bug/2068851

System: ubuntu mate xorg gnome

$ ps -e | grep tty
1567 tty7 00:00:36 Xorg
2339 tty1 00:00:00 agetty

$ sudo apt list onboard
onboard/noble,now 1.4.1-5ubuntu6 amd64

$ uname -a
Linux go2 6.8.0-35-generic #35-Ubuntu SMP PREEMPT_DYNAMIC Mon May 20 15:51:52 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux

$ cat /etc/os-release
PRETTY_NAME="Ubuntu 24.04 LTS"
NAME="Ubuntu"
VERSION_ID="24.04"
VERSION="24.04 LTS (Noble Numbat)"
VERSION_CODENAME=noble
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=noble
LOGO=ubuntu-logo

$ onboard -d warning
(onboard:3071): Gdk-CRITICAL **: 22:29:31.659: gdk_window_thaw_toplevel_updates: assertion 'window->update_and_descendants_freeze_count > 0' failed
Segmentation fault (core dumped)

[dr.n (dr.n)]

I have now found a solution:

The presets of onboard are not working anymore with my OS. I could get it back working by changing

“Onboard Settings” → Keyboard → Advanced → Input Options

There I changed “Input event source” from Xinput to GTK.

May be there are now incompatible Xinput calls?

[dr.n (dr.n)]

see also https://bugs.launchpad.net/ubuntu/+source/onboard/+bug/2063041