[Bug 97244] [SKL] 5k tiled dual DP (two-pipe, two-port) display sync issues

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed May 24 08:15:14 UTC 2017


https://bugs.freedesktop.org/show_bug.cgi?id=97244

--- Comment #23 from Tomas Bzatek <bugs at bzatek.net> ---
Yes, this is still a problem with latest drm-tip.

However I noticed recently that the image is torn at a consistent point across
multiple output mode switching - previously with 4.8/4.9 kernel the image was
torn differently everytime the target resolution was set on both outputs.

So there's a level of improvement (and hope) now, still the outputs are not in
sync.

Regarding the PCI MMIO BAR dump on Windows - I still don't have an idea how to
make such dump...

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