Originally posted by kgonzales
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- According to AMD's AMDGPU-Pro website, AMD Radeon™ R9 M395X Graphics is listed, so I would assume it should be supported by this kernel ( note that haven't looked into the code for your card). I would still verify that the radeon driver isn't being used instead of amdgpu, and if it is, I would blacklist the "radeon" module temporarily to see if it works. It may or may not be supported by mesa yet, though I would assume it should be agnostic enough for it not to matter.
- If the new linux-firmware indeed does not work, regardless of what kernel you are using, I would report it to AMD, as I know the Tonga firmware was updated since I pulled the binaries for that package. There could be a regression there.
- Let me know if using stock linux-firmware with my kernel build works, it shouldn't matter what mesa you are using providing it's recent. There maybe a regression in the staging branch itself pertaining to your card.
- Honestly, using AMDGPU may not be valuable for your card unless it improves stability or adds a feature you want. Performance wise, I don't believe it will do much, but note that this is conjecture, I am not an AMD developer.
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