[Bug 101691] gfx corruption on windowed 3d-apps running on dGPU

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101691

--- Comment #34 from Ben Widawsky <ben at bwidawsk.net> ---
Just some thoughts...

The corruption are x-tiled cachelines, looks like stale ones. I don't know what
the vertical lines are. It looks to me like the memory is just misbehaving. I
wonder if when you plug in the machine if BIOS tries to crank up DDR, or
Graphics voltage. Is there some BIOS setting or update to tweak what happens on
AC?

Is this desktop environment using sprite planes? If the compositor is using all
one plane (which I think is likely), and display was at fault, everything would
be corrupt.


So please see if there is anything that can be done in BIOS to tell it to not
behave differently when on AC.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/dri-devel/attachments/20170825/2f939fe6/attachment.html>