| Bug ID | 107823 |
|---|---|
| Summary | [amdgpu/displayport] Blackscreen on native resolution |
| Product | DRI |
| Version | DRI git |
| Hardware | Other |
| OS | All |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | DRM/AMDgpu |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | jan.burgmeier@unicon-software.com |
Created attachment 141442 [details]
dmesg with drm.debug=0x1e log_buf_len=1M
Hi,
there seems to be some monitor/graphics card combination which lead to a black
screen.
In my case it is the native (1920x1080) resolution of a NEC EA223WM monitor and
a [AMD/ATI] Carrizo (rev 88). Setting any other mode than the native one via
xrandr turns the monitor on. Setting it back to the native one results in a
black screen.
It seems unrelated to XOrg as there is also a black screen on the terminal and
during boot.
I do not see any errors in dmesg or XOrg log
The error does not occur with module parameter dc=0
Environment:
Kernel: 4.19.0-rc2 (git master)
Mesa: 18.1.6
XOrg: 1.20.1
amdgpu-ddx: 18.0.99 (git master)
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