screen goes white on starting the desktop session

[Francesco Salbaroli]

Binary package hint: compiz

Ubuntu 8.04 Hardy Heron

Passages that leads to the bug
1) login in GDM screen with default (gnome) session
2) brief peek at desktop background
3) screen turns white

i think that the desktop is loaded behind the white curtain

I'm using a mobility radeon x1400 on a Acer aspire 5670 notebook

ProblemType: Crash
Architecture: i386
Date: Wed Feb 27 09:00:36 2008
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/bin/compiz.real
NonfreeKernelModules: cdrom
Package: compiz-core 1:0.7.0-0ubuntu4
PackageArchitecture: i386
ProcCmdline: /usr/bin/compiz.real --ignore-desktop-hints --replace --sm-client-id default0 ccp
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: compiz
Stacktrace:
 #0 0x08055a4d in ?? ()
 #1 0x0807b548 in ?? ()
 #2 0x00000003 in ?? ()
 #3 0x000000fa in ?? ()
 #4 0x00000000 in ?? ()
StacktraceTop:
 ?? ()
 ?? ()
 ?? ()
 ?? ()
 ?? ()
Title: compiz.real crashed with SIGSEGV
Uname: Linux 2.6.24-10-generic i686
UserGroups: adm admin audio cdrom dialout dip floppy lpadmin plugdev video