Hi Mark, thanks for the quick answer. What do you mean by "separate display connections" ? The case is this : I have one Qt-GUI that responds to each click on any widget. Beside this an audio callback thread is running that as well accesses the same GUI via an pointer on the current application object. Since this is an audio transmitter/receiver the graphical functionality is not very exiting - no X-Render extension. Also I havn't called XInitThreads () either. Should I call it right away ? If you have further ideas please let me know. Otherwise I'll get back to you if I know more. Best -- A l e x > > Do the threads have separate display connections? If not, > was XInitThreads() called before opening the display connection? > It could be possible that there is a thread safety bug in one of > the X libraries, but it's unlikely to be a bug in old functionality. > Is this application/widget using something new like the X-Render > extension? > > Mark. > > On Tue, 17 May 2005, [ISO-8859-1] "Alexander Carôt" wrote: > > > Hi to all, > > > > I have a Qt-Application using a callback thread that updates two widgets > > each 10 ms. In general this works fine but sometimes ( i.e. each 10 > minutes) > > I get a crash with this error message : > > > > Xlib: unexpected async reply (sequence 0x232df6)! > > > > Can anyone tell how to approach this error ? > > > > Thanks in advance > > > > -- A l e x > > > > -- > > Dipl.-Ing. Alexander Carôt > > Email : Alexander@xxxxxxxx > > Tel.: +49 (0)177 5719797 > > > > phd-student at www.isnm.de > > > > Weitersagen: GMX DSL-Flatrates mit Tempo-Garantie! > > Ab 4,99 Euro/Monat: http://www.gmx.net/de/go/dsl > > _______________________________________________ > > XFree86 mailing list > > XFree86@xxxxxxxxxxx > > http://XFree86.Org/mailman/listinfo/xfree86 > > > > _______________________________________________ > XFree86 mailing list > XFree86@xxxxxxxxxxx > http://XFree86.Org/mailman/listinfo/xfree86 > -- Dipl.-Ing. Alexander Carôt Email : Alexander@xxxxxxxx Tel.: +49 (0)177 5719797 phd-student at www.isnm.de Weitersagen: GMX DSL-Flatrates mit Tempo-Garantie! Ab 4,99 Euro/Monat: http://www.gmx.net/de/go/dsl _______________________________________________ XFree86 mailing list XFree86@xxxxxxxxxxx http://XFree86.Org/mailman/listinfo/xfree86