Re: [PATCH] drm_edid: support CEA video modes

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Daniel Vetter wrote:
On Fri, May 18, 2012 at 12:37:51PM +0100, Andy Furniss wrote:
Joakim Plate wrote:
Joakim Plate<elupus<at>   ecce.se>   writes:


Christian Schmidt<schmidt<at>   digadd.de>   writes:


TFT/plasma televisions and projectors have become commonplace, and so
has the use of PCs to drive them. Add the video modes specified by an
EDID's CEA extension to the mode database for a connector.

/Joakim


Shameless bump on the subject. Would be nice if we could
get this list complete when connecting to HDTV's.

Yea, it would be nice.

UK bluray seems to use 24/1.001 - not that it's that bad watching
with TV@24Hz.

I do have issues with interlaced modes on my TV. I don't know how
DRM handles interlaced, but CEA says that the number of vblank lines
alternates per field. If that isn't happening then I guess that's
why.

If this is on an intel gpu, you need kernel 3.4 to make interlaced work.
If that doesn't help, please file a bug on bugs.freedesktop.org.
-Daniel

Thanks, but it's AMD I do have a bug open for it.
https://bugs.freedesktop.org/show_bug.cgi?id=35970

Which reminds me - another issue with CEA modes is that the ones that should be double clocked are not.



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