[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1926597
Title:
Linux 5.10.0-1024.25 breaks HDMI with Intel i915
Status in linux package in Ubuntu:
Expired
Bug description:
Hi,
[Thinkpad T480s, Intel iGPU 8550u, Ubuntu Focal up-to-date, GNOME
Wayland session]
Previous 5.10.0-1023.24 was ok. Kernel 5.8 HWE is ok. I did not test a
X session.
Plugging HDMI after GNOME is loaded fails to display anything on the HDMI
display.
Plugging HDMI at boot or at GDM screen makes the HDMI display works as usual.
Unplugging HDMI (display only on this one) during GNOME session does
not update displays state. Nothing happens. I have to press the
switch-display-key on my laptop to actualize the setup and make my
laptop's display active.
When I unplug HDMI during GNOME session, nothing appears in logs.
My laptop fails to enter sleep after having unplugged the HDMI.
Related: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924238
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