Ubuntu 26.04 Dock crashes

[Jens55]

The VNC incompatibility is precisely why I had suspected the issue might be connected to this. The machine that crashes does NOT run a VNC server. It runs a VNC viewer to log into a different computer that runs the VNC server. To test my theory that this might cause problems, I never started the VNC viewer after rebooting the Ubuntu 26.04 machine. The system still crashed. It seemed to take longer which is why I was hoping I had located the problem but alas, it still crashed.
I have installed the TigerVNC viewer and will see if running it instead of the RealVNC viewer makes any difference.
Earlier, I tried installing a different desktop environment as well as X11 but I have spent years in the standard Ubuntu desktop environment and switching was too much of a shock to my old fart brain so I abandoned that idea.
I have several headless machines (Raspberries) that run RealVNC servers. They are all controlled via this computer(Ubuntu 26.04) and my second computer running Ubuntu 25.10. The Raspberries had to stay with a fairly old version of the Raspberry OS in order to run a RealVNC server. I was not prepared to switch the Raspberries OS's and run a newer VNC server (again, old fart trying to run newfangled software and a royal screw-up is pretty much guaranteed).

 

[Jens55]

As expected, the dock crashed even though I had the TigerVNC viewer running.

 

[Rocketing-warp9]

Hmmm. Do you use any Doc extensions? Anything within Gnome 50 that could cause instability?
I'm Running out of ideas

 

[CaffeineAddict]

Ubuntu 26.04 sadly completely dropped support for x11

Where are now wayland preachers to preach how wayland is the way to go?
I'm sure they can help resolve this problem.

 

[Rocketing-warp9]

Where are now wayland preachers to preach how wayland is the way to go?
I'm sure they can help resolve this problem.

I'm Starting to think a GNOME Extension or a incompatibility somewhere with Wayland or X11toWayland Bridge.
This, Is sadly where My end of the Train ends. I can See if I Can Throw Some more ideas that might Stick, but This is uncharted seas for me.

@Jens55 Do you use any GNOME Extensions? Like Dash2Dock & etc? It might be related if you do.

 

[Jens55]

I looked at the extensions and from what I gather, I need the connector package to be installed for any extensions to function. I do not have the connector installed. Having said that, at the bottom left of my screen there is the icon with 9 dots. If I click on it I can see all installed apps but if I do a two finger click on my track pad I get a small dash to dock window that allows me to change settings. I don't know if this is native to Gnome 50 or if I installed something that I have forgotten about. If it is an extension then I do not know how to remove it.
Thanks for all your help rocketing-warp9!!

 

[Jens55]

It's been a couple of days without the dock crashing. Hopefully I am not jinxing it by posting this ....
The magic solution: sudo apt remove gnome-shell-ubuntu-extensions
As far as I know this is part of the Ubuntu 26.04 installation and is not an add-on as such. It kills some features (such as seeing the files of my home directory on the desktop and probably more) but so far this is less annoying than having to reboot the computer on a regular basis.