For some GPU stress-tests you may use furmark, it's provided by `gputest` in AUR. чт, 19 вер. 2019, 19:23 користувач L. Rose <lists@lrose.de> пише:

On 19 September 2019 17:29:05 CEST, hw <hw@adminart.net> wrote:

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At least NVIDIA graphics cards can go bad in that they can cause temporary hangs, accompanied by log messages, indicating that the GPU is damaged.

Where would I find such logs? I couldn't find anything in dmesg so far.

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So perhaps if you were to stress-test the graphics card, or if you were to use the other card instead, you might be able to see some interesting results.

What kind of stress test comes to your mind?