[Bug 90238] [BXT-P/SKL desktop/BDW/GLK] HDMI "testdisplay -y" shows wrong picture on every interlaced scanning resolution

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90238

--- Comment #23 from Mahesh Kumar <mahesh1.kumar at intel.com> ---
(In reply to Elizabeth from comment #22)
> (In reply to Mahesh Kumar from comment #21)
> > Hi Antonia,
> > 
> > Interlace modes with Y-tiling is not supported in Gen9+ (SKL & GLK).
> > Two patches to implement this limitation are already merged.
> > 
> > Now any calls which requests Interlace mode with Y-tiling gets rejected by
> > kernel instead of corrupted output.
> > 
> > -Mahesh
> Hello Mahesh, is this comment really for this bug? If so, you're suggesting
> to test again with latest commit??

sorry for late reply, mail escaped from my inbox :).
yes it's for same bug, Let me correct little-bit here, Interlace more (IF-ID)
with Y-tiling is not supported in Gen9+, below is the link for patches.
https://patchwork.freedesktop.org/series/26546/
yes Please check with latest commit. Now commit will fail instead of corrupted
image, because we use IF-ID for Interlace mode.

-Mahesh

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