Re: Strange behaviour of certain X programs on Debian on a Dell Latitude XPi P133ST

Andrew C Aitchison <[email protected]> Fri, 15 Nov 2002 10:00:36 +0000 (GMT)
Newsgroups gmane.comp.xfree86.neomagic
Message-ID <Pine.LNX.4.44.0211150956140.22140-100000@ard>
On Thu, 14 Nov 2002, Calyth wrote:

> All,
> Here's the question:
> I'm running debian on this little system. Everything generally works 
> well except for a couple of things.
> Somehow when I run Lyx and Galeon, the colors "invert" inside the 
> window, when the focus is in the window, then the colors inside the 
> window becomes normal, but everything else are inverted.
> A solution would be very nice, but at least an explanation would be good 
> too.

Are you running at 8bpp ?
It sounds as if you are experiencing "colormap flashing", where
different apps have different colormaps. Because there are only 256 colors
available the screen can't display both sets of colors at the same time,
so whichever app doesn't have the focus has to display with the the
active colormap even though it is wrong.

Netscape has an option  -no-install to make it use the default
colormap which stops this problem (but it does have fewer colours
to display images in). Maybe lyx and Galeon have similar options.

Otherwise, try running in 16bpp mode.

-- 
Dr. Andrew C. Aitchison		Computer Officer, DPMMS, Cambridge
[email protected]	http://www.dpmms.cam.ac.uk/~werdna