[Intel-gfx] [PATCH-v2 0/3] drm/i915: interlaced mode support

Daniel Vetter daniel at ffwll.ch
Thu Jan 19 11:29:49 CET 2012

On Wed, Jan 18, 2012 at 06:39:40PM -0200, Paulo Zanoni wrote:
> Hi
> 2012/1/18 Peter Ross <pross at xvid.org>:
> > This patch set enables enables interlaced mode output on
> > generation 3 and above chipsets.
> I just tested that on HDMI.
> The "interlace_allowed=1" patch seems fine: it made xrandr list more
> modes. But I believe patch 1 is still not correct. I tested that and
> instead of getting a 1920x1080 I got a 1920x1078 mode: vtotal, vblank
> and vsync were wrong. If you look at the patch, you'll see that the
> code has some "something -= 1" statements. I believe they could be
> wrong.
> So I removed these lines and tested again... Now the mode is actually
> 1920x1080, but my monitor's OSD displays it as "1080p". So I also
> tested my TV and it reported "1080p at 25hz" too.
> I guess we're still missing something... I'll try to debug.

To clarify, on which machines have you tried this? In particular, can you
try this on an Ironlake?
Daniel Vetter
Mail: daniel at ffwll.ch
Mobile: +41 (0)79 365 57 48

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