https://bugzilla.kernel.org/show_bug.cgi?id=217237 Bug ID: 217237 Summary: Fail to read EDID after resuming from suspend since kernel 6.2 Product: Drivers Version: 2.5 Kernel Version: 6.3.0-rc3 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@xxxxxxxxxxxxxxxxxxxx Reporter: chewi@xxxxxxxxxx Regression: No Created attachment 304013 --> https://bugzilla.kernel.org/attachment.cgi?id=304013&action=edit dmesg from 6.2.7 showing boot, suspend, resume Since upgrading past Linux kernel 6.2, my system has been unable to read the EDID after resuming from suspend. I got the following error: [ 135.566642] EDID block 0 is all zeroes [ 135.566831] amdgpu 0000:0f:00.0: [drm] User-defined mode not supported: "2560x1440": 144 592000 2560 2568 2600 2666 1440 1465 1470 1543 0x60 0x9 [ 135.566836] amdgpu 0000:0f:00.0: [drm] User-defined mode not supported: "2560x1440": 144 807923 2560 2784 3072 3584 1440 1441 1444 1565 0x20 0x6 After this, the only available mode is 640x480. This happens with both my displays, a monitor and a TV. I have a Radeon RX 6800 XT that previously worked fine in this regard. I usually override the EDID with drm.edid_firmware, but removing this has not helped. I tried bisecting the issue, but perhaps it doesn't happen every single time, as it lead my down a dead end. I also tried reverting some potential culprits, to no avail. I can see that there were some very large EDID-related changes by Jani Nikula for 6.2. I wasn't able to revert these, so I will CC them here. I am happy to provide further information. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
