Angelika Bosau writes:
> Hi,
> this is my problem:
> I have an Qt-application (qt-3.0.5) for linux. It shows some dialogs in
> regular time-intervals. When it runs, after some days I have a problem
> with changing consols (Ctrl-Alt-Fx). When I change from the graphic
> console to a text console or text to graphic, the xserver (XF86) takes
> so much cpu-time as it can ('top') and it takes some seconds to minutes,
> till it really changes the console. After changing console, the xserver
> has normal cpu-time.
> On another test-pc, with a much faster cpu and more memory, the problem
> appears earlier (less than 24 hours). Some infos to this pc:
>
Sounds like it is spinning in a loop waiting for something.
This could be the graphics chip (accel engine).
- Do both PCs have the same graphics chipset?
- What is this application doing?
- can you run X in gdb (from remote) and break when it is
spinning to see where this happens?
You need a special module aware gdb.
Unfortunately the one on www.dawa.demon.co.uk/xfree-gdb
appears to be broken. You may give it a try. If it bombs
on you I'll see if I can get you another one.
Egbert.
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