Bug#897993: random black flickering
On 2018-05-05 04:20 PM, Eduard Bloch wrote:
> Package: xserver-xorg-video-amdgpu
> Version: 18.0.1-1
> Severity: normal
>
> Hello,
>
> my card (cheaper version of Rx560) has been working quite well for months.
> But I made a dist-upgrade a few weeks ago and since then I see strange
> flickering happening every few minutes, sometimes even multiple times
> per minute. Feels like a quick insertion of a black frame. Maybe a
> silent GPU reset or something?
>
> It seems to happen more often when mouse is moving and/or Firefox is
> active. First I suspected the application where I saw it most in the
> first days (another web browser) but now I see this happen from time to
> time with other applications, like the gvim window I see in front of me
> right now.
>
> First I attribute this to the amdgpu.dc=1 kernel option which I have set
> for testing purposes before, but removing it did not change the
> behavior.
That's because DC is enabled by default for you, you need amdgpu.dc=0 to
disable it. This is a DC issue which is fixed in current 4.16.y upstream.
--
Earthling Michel Dänzer | http://www.amd.com
Libre software enthusiast | Mesa and X developer
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