[Bug 13872] TV-Out show bright white colors as black/white noise

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=13872





--- Comment #7 from Robert Nelson <robertcnelson at gmail.com>  2008-01-23 05:51:24 PST ---
I agree, when i was using fglrx's on this setup there were no problems
displaying whites correctly, I'm betting we are just not setting one of the
correct bits...  Looking thru the RV630 docs (for reference only since the
hardware registers most likely changed alot.) there is a DACA_WHITE_LEVEL
setting for the different video standards (page 296) along with a fine control
adjustment for the white level in the same register.. I'm betting there's
something similar. Looking thru the code there is a tv_dac_cntl register.  It
would probably be worthwhile to use 'revenge' and compare this one, along with
all known tv_dac settings registers...

 854     if (radeon_output->tvStd == TV_STD_NTSC ||

 855         radeon_output->tvStd == TV_STD_NTSC_J)

 856         save->tv_dac_cntl |= RADEON_TV_DAC_STD_NTSC;

 857     else

 858         save->tv_dac_cntl |= RADEON_TV_DAC_STD_PAL;


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