qt4 opengl crashed with SIGSEGV in glXWaitX()

[Owen Riddy]

My computer is producing errors and segfaults when displaying an opengl widget in qt. I Installed and ran the demos from the qtdemo package, and many crashed (including at least one when compiled from source separately).

I don't know where the problem is coming from. When I run a program that uses a QGLWidget, sometimes/usually I get a message "unknown chip id 0x95c5, can't guess.".

I'm using xserver-xorg-video-radeon (Radeon HD 3450 graphics card), v6.12.1-0ubuntu2 and libqt4-opengl v4.5.0-0ubuntu4. I know the driver doesn't support hardware accelerated openGL, but I have a debian lenny install for reference, where everything qt-opengl seems to work "normally".

ProblemType: Crash
Architecture: amd64
CrashCounter: 1
Disassembly: 0x1000000010:
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/lib/qt4/examples/opengl/hellogl/hellogl
Package: qt4-demos 4.5.0-0ubuntu4
ProcCmdline: /usr/lib/qt4/examples/opengl/hellogl/hellogl
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_AU.UTF-8
 LANGUAGE=
Signal: 11
SourcePackage: qt4-x11
StacktraceTop:
 ?? ()
 glXWaitX () from /usr/lib/libGL.so.1
 QGLWidget::resizeEvent ()
 QWidget::event () from /usr/lib/libQtGui.so.4
 QGLWidget::event () from /usr/lib/libQtOpenGL.so.4
Title: hellogl crashed with SIGSEGV in glXWaitX()
Uname: Linux 2.6.28-11-generic x86_64
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:?? ()
glXWaitX () from /usr/lib/libGL.so.1
QGLWidget::resizeEvent (this=0xe336a0)
QWidget::event (this=0xe336a0, event=0x7fff2e7586c0)
QGLWidget::event (this=0xe336a0, e=0x7fff2e7586c0)