Remember my #issue with same hard- and software but one device doesn't support the native resolution of an external TFT?
I could fix it today with the help of #Claude #AI using its #Opus 4.1 #LLM: https://karl-voit.at/2025/09/14/fix-wrong-34-TFT-resolution/
As so often, it was actually a layer-8-issue. I unintentionally got a Debian testing kernel on the host that worked with the TFT. After using the testing kernel on the other host, the TFT now works on both machines.
However, I now need to find out how to *not* get testing packages for my systems where I don't want it ... different issue.
@alienghic @gnomon thanks for your help! 馃檱
