Checking syslog I noticed that Networkmanager stops 21 sec after the crash:
Apr 27 15:04:46 UbuntuHardy gdm[5580]: WARNING: gdm_slave_xioerror_handler: Fatal X error - Restarting :0 Apr 27 15:05:07 UbuntuHardy NetworkManager: <debug> [1240837507.372320] nm_hal_device_removed(): Device removed (hal udi is '/org/freedesktop/Hal/devices/volume_part_1_size_430770176'). Now I have found the error, I found out that the same error occurred yesterday: Apr 26 16:28:00 UbuntuHardy gdm[5561]: WARNING: gdm_slave_xioerror_handler: Fatal X error - Restarting :0 Apr 26 16:28:21 UbuntuHardy NetworkManager: <debug> [1240756101.373353] nm_hal_device_removed(): Device removed (hal udi is '/org/freedesktop/Hal/devices/volume_part_1_size_430770176'). -- visualization button cuts music and shows black screen https://bugs.launchpad.net/bugs/162457 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs