Re: FVWM: strange behavior with graphics programs

From: TJ <tjhanson_at_home.com>
Date: Mon, 20 Mar 2000 21:52:49 -0800

Okay, that information gave me enough information to root it out. I
ended up going back to 16-bit (64K colors). Thanks.

"Jan T. Kim" wrote:
>
> On Sun, Mar 19, 2000 at 07:59:01PM -0800, TJ wrote:
> > I ran into an unexpected problem when updating to fvwm 2.2.2 with my
> > SuSE 6.3 distribution. FVWM2 has always worked in the past and I can't
> > quite figure out what to do now. I'm no expert at this.
> >
> > When loading some graphics programs, notably Gimp and Compupic, windows
> > in the mouse focus are colored properly, but those out of focus have
> > some really strange "reversed" colors.
>
> Probably, you use an X server that is able to display only a limited
> amount of colors. In such cases, the X server uses the colors it can
> display to show the window which has the focus in the colors it has
> requested. As a consequence, all other windows are shown in random,
> psychedelic false colors, and this pattern changes abruptly when the
> keyboard focus is moved to another window -- a phenomenon known as
> colormap flashing.
>
> > In addition, after closing one
> > of these programs I have to restart FVWM2 because subsequent windows
> > come up without the border and in the upper left of the screen, making
> > them unusable.
>
> I don't know about this one.
>
> > I have tried two different graphics cards, one a plain
> > vanilla S3-Virge. The behavior has me scratching my head because I've
> > run these programs for years without problems.
>
> Did you try the cards without installing the corresponding X server? In
> that case, you are likey using the generic VGA X server, which has only
> 16 colors. (This doesn't mean your card can't do better, just the plain
> vanilla VGA X server never uses such capabilities, thix X server is
> commonly used as a least common denominator for initial system installations
> and the like.)
>
> If you have used the X server for your card, try running it in true color
> mode (``startx -- -bpp 24'' or ``startx -- -bpp 32''). If this doesn't
> work, check your XF86Config file.
>
> Since these issues are only indirectly related to fvwm, you might ask
> your question on a SuSE or Linux related newsgroup or mailing list, as
> people there may be able to give you more competent advice.
>
> Greetinx, Jan
> --
> +- Jan T. Kim -------------------------------------------------------+
> | email: kim_at_mpiz-koeln.mpg.de |
> | WWW: http://www.mpiz-koeln.mpg.de/~kim/ |
> *-----=< hierarchical systems are for files, not for humans >=-----*
> --
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Received on Mon Mar 20 2000 - 23:52:49 GMT

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