After the things I did in
https://bugs.launchpad.net/ubuntu/+source/linux-
hwe-5.13/+bug/1964711/comments/7, I am now facing a worse problem.
My computer no longer recognizes my display correctly. Since the boot
screen, the resolution is the minimum available (1024x768). I think my
system no longer selects the correct driver for my graphics card.
Running "sudo lshw -c video" yields the following:
```
*-display UNCLAIMED
description: VGA compatible controller
product: Navi 10 [Radeon RX 5600 OEM/5600 XT / 5700/5700 XT]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci@0000:03:00.0
version: ca
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi vga_controller bus_master cap_list
configuration: latency=0
resources: memory:40000000-4fffffff memory:50000000-501fffff
ioport:3000(size=256) memory:50300000-5037ffff memory:c0000-dffff
```
Running "lsmod | grep amd" prints nothing (it used to before) and "dkms
status amdgpu" also prints nothing. I tried uninstalling the drivers I
installed and also tried installing drivers from different source. I
tried to look for issues in my BIOS settings. All to no avail. If I
don’t find a solution to this, I will resort to completely re-installing
Ubuntu 20.04. I have luckily completed a full backup before.
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-hwe-5.13 in Ubuntu.
https://bugs.launchpad.net/bugs/1964711
Title:
[amdgpu] Locked Ubuntu is frozen and cannot be unlocked
Status in linux-hwe-5.13 package in Ubuntu:
Incomplete
Bug description:
After locking Ubuntu and leaving it unattended for a while, the
operating system cannot be unlocked anymore. No means of user input
(e.g. typing on the keyboard, moving the mouse) produce the lock
screen and I have to shut down my computer by pressing down the power
button. The attached monitor does not receive a signal from the
computer during these attempts.
This started to happen several weeks ago and worked without a problem
before then.
Due to the nature of this issue, I can neither report any errors
occurring nor can I observe any other out of the ordinary things from
happening. Thus, I don’t know which package is causing the issue.
Also, this issue happens every time I leave the computer unattended
for a longer time and lock it. However, locking it and triggering an
input immediately after does produce the lock screen, so the lock
screen seems to work in principle.
Description: Ubuntu 20.04.4 LTS
Release: 20.04
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.13/+bug/1964711/+subscriptions
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