Ubuntu 26.04 Dock crashes

[Jens55]

I recently upgraded from Ubuntu 24.04 to 26.04. When I first boot Ubuntu, all is well and I see all my previous dock icons. After some time and for yet unknown reasons, all my dock icons disappear and I see only the Ubuntu circle thing on the bottom left corner (was bottom of dock list) and the icon at the very top left that lets me search for stuff. Clicking on either one of these seems to lock up the computer. I have to reboot to do anything further. After the reboot, the dock is fully restored and working .... but it will crash again at a later time.
When the dock icons are gone, Ubuntu is still functioning as long as I don't click on the circle icon, te search icon or the 'windows' keyboard key.

 

[Magrid0]

Hi, can you execute this command in the terminal for me and paste here what it returns as a code block?
journalctl -b -e | grep -i "gnome-shell"

Also if it’s still giving you problems you can try to restart gnome shell without losing your open apps when the dock misbehave by:
by:

1. Pressing Alt + F2
2. Typing r in the prompt
3. Pressing Enter [1]

 

[wizardfromoz]

Moving this to Ubuntu subforum

 

[Jens55]

Hi, can you execute this command in the terminal for me and paste here what it returns as a code block?
journalctl -b -e | grep -i "gnome-shell"

Also if it’s still giving you problems you can try to restart gnome shell without losing your open apps when the dock misbehave by:
by:

1. Pressing Alt + F2
2. Typing r in the prompt
3. Pressing Enter [1]

the journalctl command returned nothing (just came back with the standard terminal prompt)
Note that at the moment the system has not crashed yet. Earlier today I edited the gdm3 config file so as to not allow Wayland ... this is just a wild try and may or may not fix anything. Since the failure isn't immediate, I will need to wait a while to see what happens.
Pressing Alt + F2 gives me a 'command not found' reply

 

[Jens55]

Just checked, looks like I am still running Wayland so my attempt at going back to X11 failed.