amdgpu display corruption and hang on AMD A10-9620P

[Deucher, Alexander]

> -----Original Message-----
> From: Daniel Drake [mailto:drake at endlessm.com]
> Sent: Tuesday, May 09, 2017 12:55 PM
> To: dri-devel; amd-gfx at lists.freedesktop.org; Deucher, Alexander
> Cc: Chris Chiu; Linux Upstreaming Team
> Subject: amdgpu display corruption and hang on AMD A10-9620P
> 
> Hi,
> 
> We are working with new laptops that have the AMD Bristol Ridge
> chipset with this SoC:
> 
> AMD A10-9620P RADEON R5, 10 COMPUTE CORES 4C+6G
> 
> I think this is the Bristol Ridge chipset.
> 
> During boot, the display becomes unusable at the point where the
> amdgpu driver loads. You can see at least two horizontal lines of
> garbage at this point. We have reproduced on 4.8, 4.10 and linus
> master (early 4.12).
> 
> Photo: http://pasteboard.co/qrC9mh4p.jpg
> 
> Getting logs is tricky because the system appears to freeze at that point.
> 
> Is this a known issue? Anything we can do to help diagnosis?

I'm not aware of any specific issues.  Please file a bug and attach your logs (https://bugs.freedesktop.org) along with information about the system.

Alex