https://bugzilla.suse.com/show_bug.cgi?id=1234782 Bug ID: 1234782 Summary: Kernel 6.12.6 with amdgpu breaks brightness control after resume Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: x86-64 OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-bugs@opensuse.org Reporter: fkrueger@mailbox.org QA Contact: qa-bugs@suse.de Target Milestone: --- Found By: --- Blocker: --- Given TW20241220 with kernel 6.12.6 and resuming after suspend, the display brightness starts to increase until reaching its maximum value, and then switches off (Thinkpad T14 with AMD Ryzen 7 PRO 4750U). Since kernel version 6.12.4 works fine, I suspect that this was introduced with 6.12.5 and is due to commit 99a02eab82515343d536796aa917dee50aec1551 Author: Alex Deucher <alexander.deucher@amd.com> Date: Mon Nov 25 13:59:09 2024 -0500 drm/amdgpu: rework resume handling for display (v2) commit 73dae652dcac776296890da215ee7dec357a1032 upstream. Split resume into a 3rd step to handle displays when DCC is enabled on DCN 4.0.1. Move display after the buffer funcs have been re-enabled so that the GPU will do the move and properly set the DCC metadata for DCN. v2: fix fence irq resume ordering -- You are receiving this mail because: You are the assignee for the bug.