Is it possible to give 21.04 a try?
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Touch seeded packages, which is subscribed to mesa in Ubuntu.
https://bugs.launchpad.net/bugs/2007756
Title:
No display on ThinkPad USB 3.0 Pro Dock
Status in mesa package in Ubuntu:
New
Bug description:
I used to run my systems (lenovo Helix 2) via USB 3.0 Pro Docks; lid closed,
display only on the external monitors without problems, until bug [Bug 1871959]
Re: Crash with SIGABRT in _iris_batch_flush from iris_fence_flush() made the
DisplayLink unworkable.
Now, with this bug being squashed, it doesn't crash any longer, but simply
doesn't show anything; not even detecting the (various) monitors any longer
(System Settings).
To me, that's no progress (rather regress), since it used to work flawlessly
earlier.
$ ubuntu-bug mesa
dpkg-query: no packages found matching mesa
$ dpkg -l | grep mesa
shows a bunch of 22.2.5-0ubuntu0.1~22.04.1 packages.
$ xrandr
HDMI-{1|2} disconnected (normal left inverted right x axis y axis)
HDMI-1 is the display device that shows when connecting to the
mini-DP-connector in the tablet.
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