vlc crashed with SIGSEGV in XEventsQueued()

[Bill]

Binary package hint: vlc

Tried to use the qt4 interface, but it said that QApplication was not created in the main() thread

ProblemType: Crash
Architecture: amd64
Date: Wed Aug 5 22:37:25 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/vlc
NonfreeKernelModules: nvidia
Package: vlc-nox 1.0.1-1ubuntu1
ProcCmdline: vlc -vvv
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_US.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-4.23-generic
SegvAnalysis:
 Segfault happened at: 0x7f2f31bb4fc6 <XEventsQueued+22>: mov 0x968(%rdi),%rax
 PC (0x7f2f31bb4fc6) ok
 source "0x968(%rdi)" (0x00000968) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: vlc
StacktraceTop:
 XEventsQueued () from /usr/lib/libX11.so.6
 ?? () from /usr/lib/libQtGui.so.4
 g_main_context_prepare ()
 ?? () from /usr/lib/libglib-2.0.so.0
 g_main_context_iteration ()
Title: vlc crashed with SIGSEGV in XEventsQueued()
Uname: Linux 2.6.31-4-generic x86_64
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:XEventsQueued (dpy=0x0, mode=2) at ../../src/Pending.c:40
x11EventSourcePrepare (s=0x1b941e0,
IA__g_main_context_prepare (context=0x1b93120,
g_main_context_iterate (context=0x1b93120,
IA__g_main_context_iteration (context=0x1b93120,