[Bug 85936] Black Screen on Tv after setting deep_color=1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85936

--- Comment #1 from Andy Furniss <adf.lists at gmail.com> ---
(In reply to madafa from comment #0)
> I have Panasonic TX-P42ST60E tv and when I set deep_color=1 and reboot I
> have normal picture on tv and monitor durring boot but after turning on Xorg
> I get only black screen on tv (monitor connected to DVI works as usual) and
> tv's OSD is constantly switch back and forth between '16:9' and 'Just'.

You should add your dmesg output so people can see what card/chip you have.

> Do I need special cable or tv for working deep color? Does deep color is the
> same as full rgb?

You don't need a special cable and it's not the same as rgb.

OSS drivers only do RGB over HDMI, but my older Panasonic converts this into
422 - it still does (well advertises) deep color.

Your newer model may not do this, but it also may need the right settings in
the menus to really get rgb.

Deep color isn't that usable anyway as xorg etc work in 8 bit  AFAIK you need
to go out of your way = patching and using special software to really use it.

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