Hi,
I can see commits that seem related between v6.12.39 and v6.12.40 on https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/log/?h=linux-6.12.y&ofs=200 2025-07-24 drm/amd/display: Disable CRTC degamma LUT for DCN401 <https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.12.y&id=74162dda80e7dacffa9642d113fbfdecac01fe79> Melissa Wen 1 -1/+10 2025-07-24 drm/amdgpu: Increase reset counter only on success <https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.12.y&id=62f2a58a4cb087f7e06472ae915826485b2dd596> Lijo Lazar 1 -2/+7 2025-07-24 drm/amdgpu/gfx8: reset compute ring wptr on the GPU on resume <https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.12.y&id=228ad2ab5b333596ec58bdf925c0bdc8f68365e1> Eeli Haapalainen 1 -0/+1 But i am not 100% sure the issue has been fixed in those commits. Some guy wrote the issue happens starting from kernel 6.12. When i used Debian 12, I also used kernel 6.12.* from bookworm-backports repo, and I didn't experience any freezes. The issue appeared after I upgraded my system to Debian 13. Debian 13 uses a newer firmware-amd-graphics and I presume it has some issues in kernels >= 6.12. Some guys reported the issue has been fixed in the newest kernel 6.16 RC. I hope developers have backported the fix to 6.12 LTS.
