[Bug 2137213] Re: Ryzen 5 5600U graphics driver broken in kernel 5.15.0-164

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: linux (Ubuntu)
Status: New => Confirmed

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https://bugs.launchpad.net/bugs/2137213

Title:
Ryzen 5 5600U graphics driver broken in kernel 5.15.0-164

Status in linux package in Ubuntu:
Confirmed

Bug description:
When I updated Xubuntu 22.04.05 LTS from kernel 5.15.0-153 to
5.15.0-164, the screen would stay black after boot. Setting nomodeset
at boot time seemingly fixed the issue except that Xubuntu showed the
default desktop background instead of the one I set in preferences.
Later, it also turned out that when trying to play SuperTuxKart, it
would stop updating its screen just when a race was supposed to start.

Reverting to kernel 5.15.0-153 fixed the issue and using a live CD of
Xubuntu 24.04 with a 6.8-series kernel also worked without a hitch.

As per inxi, the CPU is:
CPU: 6-core AMD Ryzen 5 5600U with Radeon Graphics (-MT MCP-)

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