Random display freeze AMD TURKS (DRM 2.50.0 / 5.4.0-77-generic, LLVM 11.0.0)

[Alex Deucher]

On Mon, Aug 2, 2021 at 1:21 PM Guus Ellenkamp <guus at activediscovery.net> wrote:
>
> My display freezes randomly on an Ubuntu 20.04 system with a Radeon AMD
> Turks graphics card.
>
> Before the final freeze I often get warnings by the display suddenly
> turning black and then turning on again.
>
> Not sure if it's the driver or the (cheap) graphics card. How can I find
> out and is there any solution?
>
> Restarting the display manager does not have any effect.
>

Anything in the kernel log?  Sounds like a GPU hang.  You might try a
newer or older version of mesa.

Alex