Bug 204365 - amdgpu crashes when using parameter "drm.edid_firmware"
Summary: amdgpu crashes when using parameter "drm.edid_firmware"
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(DRI - non Intel) (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: drivers_video-dri
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-07-29 14:21 UTC by Felix Hädicke
Modified: 2019-07-29 15:28 UTC (History)
3 users (show)

See Also:
Kernel Version: 5.2.4
Subsystem:
Regression: No
Bisected commit-id:

Attachments
dmesg log with amdgpu crash (249.32 KB, text/plain)
2019-07-29 14:21 UTC, Felix Hädicke 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Felix Hädicke 2019-07-29 14:21:22 UTC 
Created attachment 284027 [details]
dmesg log with amdgpu crash

As a workaround for the problem described in bug 204363, I am using the parameter "drm.edid_firmware" parameter to override the EDID.

This EDID seems to work fine, if I log in to my desktop (GNOME 3.32 unter X.org) before plugging in the HDMI cable to the projector. But when the HDMI cable is plugged in during boot, or when launching Wayland or X.org when the cable is plugged in, the graphics driver crashes with the following error message:

kernel BUG at drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:6264!

Full dmesg log attached.
Note You need to log in before you can comment on or make changes to this bug.