Now running with
Linux 5.13.0-28-generic #31-Ubuntu SMP Thu Jan 13 17:41:06 UTC 2022
x86_64 x86_64 x86_64 GNU/Linux
plugging in a second external monitor (hdmi) either via docking station
or directly into the system itself when a usb-c monitor is attached, the
hdmi one is not recognized.
dmesg o
Checking again today with
Linux 5.13.0-23-generic #23-Ubuntu SMP Fri Nov 26 11:41:15 UTC 2021
x86_64 x86_64 x86_64 GNU/Linux
plugging both external monitors into hdmi ports on the docking station
has the system see all monitors, however clicking Apply in the Displays
settings only produces no dis
Update: after upgrading to 21.10 (Linux 5.13.0-21-generic #21-Ubuntu SMP
Tue Oct 19 08:59:28 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux) the problem
persists with a twist:
The settings applet now sees all monitors, but trying to configure a
setup with all three is not really feasible since selecting
The last working kernel version was indeed the kind of information the
developers were looking for. Excellent that you were able to supply that
bit of information.
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The last working kernel version was indeed the kind of information the
developers were looking for. Excellent that you were able to supply that
bit of information.
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.
The system now runs 5.11.0-34-generic which still has the bug.
Looking in my /boot the oldest I have is 5.11.0-31-generic which
introduced the bug as far as I can tell (thanks apt autoremove). I do
however update whenever the thing prompts me to so I would venture a
guess that whatever preceded 5.
I would urge you to reconsider the importance of this bug.
This change broke a working setup, with no apparent user-visible
workaround available.
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https://bugs.launchpad.net/bugs/1942427
Unplugging the docking station and running with one external display via
hdmi works.
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https://bugs.launchpad.net/bugs/1942427
Title:
Upgrade to 5.11.0-31-generic #33 breaks use of exter
Also, switching to an "Ubuntu" session instead of "Ubuntu with Xorg"
made no difference.
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Title:
Upgrade to 5.11.0-31-generic #33 breaks use of e
Public bug reported:
upgrading to latest packages, my setup with 3 displays (internal plus 2
external, plugged into Lenovo USB-c base station) no longer works.
the Settings -> Displays app does find all displays, but the system only
displays on the internal one. Attempting to enable all displays
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