[Bug 46800] [SNB] Full/Limited Color range not working automatically for 1000/1001 CEA modes

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=46800

Ville Syrjala <ville.syrjala at linux.intel.com> changed:

           What    |Removed                     |Added
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             Status|NEW                         |ASSIGNED

--- Comment #15 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
(In reply to comment #10)
> > It's also available in my git tree here:https://gitorious.org/vsyrjala/linux/commits/rgb_quant_range2
> >
> > I wasn't able to test the AVI infoframe stuff as my TV doesn't support it. But
> > otherwise it seems to work as intended, ie. the driver changes to limited range
> > when a CEA video mode (except 640x480) is used, and otherwise uses full range.
> >
> > My TV seems fairly happy with it, assuming I haven't changed the defaults on
> > the TV side. This TV allows me to select the quantization range in CEA modes,
> > and it remembers the selection for each mode. The default I assume is limited
> > range for those. For non-CEA modes the TV is hardcoded to use full range,
> > without any option to override it.
> >
> > As for xorg.conf, I'll leave stuff like that for Chris to decide.
> >
> >  ------------------------------
> > You are receiving this mail because:
> >
> >    - You reported the bug.
> >
> >  I finally tried this out yesterday, all seems to work okay with one
> (potential) issue. I set a modeline to try (fractional framerate issues
> aside) set a mode for 1280x720 @ 59.94Hz. When switching to this mode the
> automatic setting seems to set the range to full. As noted it's fine on
> 1280x720 @ 50Hz and @ 60Hz. Equally it works fine if explicitly setting
> Limited Range. I cannot test 1920x1080 modes since the TV doesn't support
> full HD but my guess would be the same thing would be seen for 23.976Hz. Of
> course this could all be but a blip.

I took a stab at fixing the mode matching with fractional refresh rates.

Could you give this branch a try and see if it works for you?
git://gitorious.org/vsyrjala/linux.git cea_clocks3

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