[Intel-gfx] HDMI colour space and depth questions (YCbCr, xvYCC, Deep Colour)

Andy Burns xorg.lists at burns.me.uk
Mon Jan 16 22:50:22 CET 2012

Jesse Barnes <jbarnes at virtuousgeek.org> wrote:

> Andy Burns <xorg.lists at burns.me.uk> wrote:
>> Similarly is there any setting to indicate an xvYCC gamut, which might
>> persuade the amp not to clip the colours?
> There is a way to configure the gamut to be compressed (default) or
> expanded (up to 255).  But that's not exposed either.

I see the following from the man page

"DVI/HDMI outputs. Avaliable common properties include:
BROADCAST_RGB - method used to set RGB color range(full range 0-255,
not full range 16-235)
Adjusting this propertie allows you to set RGB color range on each
channel in order to match HDTV requirment(default 0 for full range).
Setting 1 means RGB color range is 16-235, 0 means RGB color range is
0-255 on each channel.
SDVO and DVO TV outputs are not supported by the driver at this time."

Does that mean I *can* toggle the studio colour range on the fly, or
is the doc wrong?

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