HDMI: Image on TV too dark

[Michel Dänzer]

On Mit, 2011-10-12 at 10:54 +0200, Frederik Vogelsang wrote: 
> 
> I am experiencing a strange issue: I have connected my TV to my
> computer via HDMI (AV receiver in between them) and whenever I play a
> movie on my PC the picture looses it's details in dark scenes (dark
> areas become just black). First I tried to change the settings on my
> TV (brightness, contrast, ...) but this did not really make a
> significant change.
> 
> I finally tracked down the problem to the brightness setting on the
> computer. When I change the brightness with
> 
> $> xcalib -b 8.0 -a
> 
> the picture on the TV looks fine.

What about bright areas? E.g. can you differentiate shades of grey close
to white with/out the xcalib change?


-- 
Earthling Michel Dänzer           |                   http://www.amd.com
Libre software enthusiast         |          Debian, X and DRI developer