I was unable to find any descriptions of similar issue on Launchpad. I searched for Ubuntu in general and 25.10 specifically. However, I did some general searching around the web and found references to updating the tablet’s firmware. It is possible that with an interim release as new as Questing you have encountered something that has not bubbled to the surface enough to be visible.
Do you know if your firmware is up to date?
Have you ever had a prior release of Ubuntu installed on the tablet? If so, was this behavior apparent?
Actually just ran firmware update manager command and I can see a listing of several available updates. Not sure how I perform each one though. Grateful for your
advic3. Cheers R
A workaround is to reboot to grub, then press C to get a commandline, then type halt. That turns everything off completely.
It’s possible to create a manual entry in Grub that you can call “halt” (or anything else you like) so that you can just select it from the menu.
Yes, it’s inconvenient, but a lot better than discovering that your battery is totally discharged.
There might be a graphical tool, but I’m not familiar with any.
I just edited a file called 40_custom in /etc/grub.d
The entire file after editing looks like this:
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
menuentry "Shutdown" {
halt
}