Thanks. This is probably an issue with the default 'nouveau' kernel
driver. That causes so many bugs that I would always recommend
installing the Nvidia 470 driver instead, as you have.
I would not expect a fix for 'nouveau' any time soon as it is not well
supported. But if you are using the Nvidia proprietary driver then that
won't affect you.
** Summary changed:
- using xorg driver for graphics card prevents suspend
+ Using nouveau driver for graphics card prevents suspend
** Package changed: xorg-server (Ubuntu) => linux-hwe-5.11 (Ubuntu)
** Changed in: linux-hwe-5.11 (Ubuntu)
Status: Incomplete => New
** No longer affects: xserver-xorg-video-nouveau (Ubuntu)
** Tags added: focal
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https://bugs.launchpad.net/bugs/1946691
Title:
Using nouveau driver for graphics card prevents suspend
Status in linux-hwe-5.11 package in Ubuntu:
New
Bug description:
ubuntu 20.04.3 LTS
Not sure what package this belongs to, but this has to do with trying
to suspend the computer.
What I expect:
selecting power off->suspend suspends my computer e.g. turns off screen,
turns off fans, etc.
What happens:
In "Software & Updates" Additional Drivers tab, for my GeForce GT 745M, if I
select the "Using X.Org X server" open source driver and then I try to suspend,
the computer will log off, and the screen will turn black except for blinking
cursor in the top left corner. The computer will never power down.
The workaround:
I work around this by selecting "Using NVIDIA driver metapackage" from
nvidia-driver-470 (proprietary, tested)
After this, my computer properly suspends.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.11/+bug/1946691/+subscriptions
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