Re: Gamma correction on G4 PowerBook
Oops... I didn't see this answer after a change in my config...
On 2003-09-15 17:31:54 +0200, Michel Dänzer wrote:
> On Mon, 2003-09-15 at 00:32, Vincent Lefevre wrote:
> > On my G4 PowerBook, this isn't much contrast for dark colors, whether
> > I use the LCD or a CRT monitor connected to it. When I look at the
> > same desktop from my RISC OS computer via a VNC client (and using the
> > same CRT monitor), images look OK. It seems that the PowerBook doesn't
> > do gamma correction by default. How can I do that? I've tried to add
> > a -gamma option in /etc/X11/xinit/xserverrc, but images look terrible
> > (probably saturated, or as if I had a palette with few colors).
>
> Have you played with xgamma yet?
I've just tried, but it works incorrectly. Instead of getting
an image of better quality, the image gets very ugly. I could
compare with the hardware gamma correction of my Risc PC (using
the VNC client on this machine), and there is a huge difference.
Did anyone else try xgamma on a PowerBook and get satisfactory
results?
FYI, I tried on http://www.quatzamis.com/S03/05.jpg viewed with
Mozilla.
--
Vincent Lefèvre <vincent@vinc17.org> - Web: <http://www.vinc17.org/> - 100%
validated (X)HTML - Acorn Risc PC, Yellow Pig 17, Championnat International
des Jeux Mathématiques et Logiques, TETRHEX, etc.
Work: CR INRIA - computer arithmetic / SPACES project at LORIA
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