On Mon, 2003-08-11 at 11:08, Greg Knight wrote:
> My apologies for the general nature of this query.
>
> I have a program using X-Toolkit GUI running fine under the XFree that
> comes with RedHat Linux 5. I have upgraded to RedHat Linux 8 (newer
> version of XFree86), and the window painting no longer works correctly.
> Windows that should be refreshed are not being, and other windows are left
> black, etc.
>
> I am guessing this is a result of changes to the XFree86 code. I am sure
> that I am not the first person to come across this, so I am hoping for
> some info to help me resolve this.
The Red Hat 5 version of XFree86 is separated from the current versions
by 4-5 years of development work. It would be basically impossible for
anybody to guess at a particular change that would be causing your
problem.
It is very likely that your application is simply buggy and just
happened to work on the older version of XFree86; possibilities
include:
- Your application is not handling expose events correctly so is
sensitive to the exact order in which certain events arrive;
the different default window manager in Red Hat 8 (metacity,
instead of fvwm) may reveal such problems.
- The default visual is different in the two configurations (the
visual is the format of pixels in video memory), and your
application can't handle the new visual.
Thousands of X apps run without any problem on XFree86-4.x and
Red Hat 8; while there were certainly bugs (including many that
were fixed in XFree86-4.3.0 and in Red Hat 9), I doubt you are running
into one.
Regards,
Owen
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