On Mon, Jan 10, 2022 at 10:30 PM Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > > 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? Since Christian is mostly the compute/memory side, adding some display folks for this. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch
