I have found a fix.
First I tried adding "nouveau.modeset=0" to bootflags, which got me to boot but
no greeter.
sddm appeared to be happily running but it failed to start the display server
restarting it did not help
"startx" worked, which gave me hope
It appeared the session "seat" had been
This is the closest, most recent report I could find with something which also
appears kernel related
Kernel 6.5.0-27 -- works fine
Kernel 6.5.0-28 -- graphics hard-hangs - sddm never displays, vtty can't be
activated
shh works, sddm and x11 processes can not be killed, reboot hangs, hard
** Tags added: cscc
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https://bugs.launchpad.net/bugs/1788044
Title:
task kworker blocked for more than 120 seconds nouveau
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xserver-xorg-video-nouveau (Ubuntu)
Status: New => Confirmed
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Do you have a way to reproduce this bug, or was it a one time event?
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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Possible duplicate of #1723250 and/or #1723245
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https://bugs.launchpad.net/bugs/1788044
Title:
task kworker blocked for more than 120 seconds nouveau
To manage notifications about
