https://bugs.freedesktop.org/show_bug.cgi?id=101387
--- Comment #14 from Carlo Caione carlo@caione.org ---
not likely related.
Alright, any hint where to start looking? As I said before it looks like the visual corruption (this https://pasteboard.co/qrC9mh4p.jpg) at boot starts at
[drm] amdgpu atom DIG backlight initialized [drm] AMDGPU Display Connectors [drm] Connector 0: [drm] eDP-1 [drm] HPD1 [drm] DDC: 0x4868 0x4868 0x4869 0x4869 0x486a 0x486a 0x486b 0x486b [drm] Encoders: [drm] LCD1: INTERNAL_UNIPHY [drm] Connector 1: [drm] HDMI-A-1 [drm] HPD2 [drm] DDC: 0x486c 0x486c 0x486d 0x486d 0x486e 0x486e 0x486f 0x486f [drm] Encoders: [drm] DFP1: INTERNAL_UNIPHY [drm] amdgpu atom DIG backlight initialized [drm] AMDGPU Display Connectors [drm] Connector 0: [drm] eDP-1 [drm] HPD1 [drm] DDC: 0x4868 0x4868 0x4869 0x4869 0x486a 0x486a 0x486b 0x486b [drm] Encoders: [drm] LCD1: INTERNAL_UNIPHY [drm] Connector 1: [drm] HDMI-A-1 [drm] HPD2 [drm] DDC: 0x486c 0x486c 0x486d 0x486d 0x486e 0x486e 0x486f 0x486f [drm] Encoders: [drm] DFP1: INTERNAL_UNIPHY
Fortunately it disappears after ~2 seconds when plymouth kicks in. My impression is that the visual corruption is triggered again when interpreting some atombios code, not really easy to debug.