On Thu, Jan 6, 2022 at 10:12 PM Dave Airlie <airlied@xxxxxxxxx> wrote:
>
> git://anongit.freedesktop.org/drm/drm tags/drm-next-2022-01-07
Gaah. I merged things and it built cleanly, and I pushed it out.
But then I actually *booted* it, and that's not pretty.
It *works", but it's almost unusable because of random scanline
flickering. I'm not sure how to explain it, but it's as if there
wasn't quite enough bandwidth on the scan-out, so you get these lines
of noise and/or shifted output. They are temporary - so the
framebuffer contents themselves is not damaged (although I don't know
how the compositor works - maybe the problem happens before scanout).
This is on the same Radeon device:
49:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
[AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] (rev e7)
with dual 4k monitors.
Any idea?
Linus
