[Intel-gfx] [PATCH 0/4] [CFT] interlaced support

Paul Menzel paulepanter at users.sourceforge.net
Thu Jan 26 22:45:09 CET 2012

Dear Intel-gfx folks,

Am Donnerstag, den 26.01.2012, 22:01 +0100 schrieb Daniel Vetter:

> I've had tons of fun reading through docs and code to get to the bottom of
> who interlaced is supposed to work. The current work-in-progress is available
> at:
> http://cgit.freedesktop.org/~danvet/drm/log/?h=interlaced
> The patches are completely untested because I lack a TV. So testing feedback
> highly appreciated. Following up are the patches I haven't sent out yet, these
> two are still in rather rough shape.

thank you for these patches.

> Daniel Vetter (2):
>   drm/i915: fixup interlaced vertical timings confusion
>   drm/i915: fixup interlaced support on ilk+
> Peter Ross (2):
>   drm/i915: allow interlaced mode output on the SDVO connector
>   drm/i915: allow interlaced mode output on the HDMI connector

could the commit messages of these two patches be extended? Like I think
to remember that interlaced mode not allowed some time. So what commit
was that and (if it does not contain the reasons) why is it allowed

Additionally Thomas Hilber once did some work on FRC (frame rate
correction) [1]. These patches are quite old and Thomas does not work an
that anymore. The repository I tried to get these patches upstreamed is
also not working anymore, so one would need to get the archives from
Thomas’ site [2].

Is there a chance to pick up Thomas’ work again? I think the main
problem was that Thomas’ work was more or less a hack to get it working.
To do it properly some interfaces have to be defined or so so that other
drivers like radeon or nouveau can do that too.




[1] http://vga2scart.gw90.de/
    (I just noticed there were some spammers active on the page. Will
clean that up soon.)
[2] http://lowbyte.de/vga-sync-fields/
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