| Bug ID | 108806 |
|---|---|
| Summary | AMDGPU Failed to read EDID from display |
| Product | DRI |
| Version | unspecified |
| Hardware | Other |
| OS | All |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | DRM/AMDgpu |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | michael.lindman@gmail.com |
Created attachment=
142526 [details]
boot log showing EDID failure
When connecting one of my monitors to the system it defaults to 1024x768 and
not the native resolution and grepping through the kernel logs shows that
AMDGPU fails to read the EDID of the display.
[ 5.054779] [drm:dc_link_detect [amdgpu]] *ERROR* No EDID read.
The display was working fine as of kernel 4.18.18 with the issues arising u=
pon
4.19.2.
I am using a POLARIS 10 GPU and both displays are connected to DisplayPort =
with
the Asus PG2780 having the issues with failing to grab the EDID.
DisplayPort-0 LG 25UM65-P
DisplayPort-1 ASUS PG278Q
| What | Removed | Added |
|---|---|---|
| Hardware | Other | x86-64 (AMD64) |
| OS | All | Linux (All) |
| What | Removed | Added |
|---|---|---|
| Attachment #142526 mime type | text/x-log | text/plain |
Same problem here with RX480 and ASUS PG278Q. Can't figure out what's broken. Is it the bios of the card, the EDID of the monitor or the code in the amdg= pu module ?
I'm also having having the "No EDID read." issue wit= h this monitor and a wx 5100. With the generic Ubuntu 5.0.0-20 kernel on 10.94 as well as on my cus= tom 5.1.17 kernel. However, I don't even get anything on the screen. My monitor just flashes f= rom black to lighter black... However, I'm running on POWER (PPC) so I may be encountering additional issues in my case. However, the petitboot firmware gives me a text screen. The firmware is run= ning 4.19.0 which suggests that something has broken since then as others have suggested.
| What | Removed | Added |
|---|---|---|
| Status | NEW | RESOLVED |
| Resolution | --- | MOVED |
-- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this = link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/615.