plymouthd always crash after logon

[ofan]

Binary package hint: plymouth

the apport always tell if the plymouth crash when logon

ProblemType: Bug
Architecture: amd64
Date: Tue Mar 23 01:50:42 2010
DistroRelease: Ubuntu 10.04
ExecutablePath: /sbin/plymouthd
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318)
MachineType: Acer Ferrari One 200
OmitPids: 3699 791 841 808
Package: plymouth 0.8.0~-17
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-16-generic root=UUID=fc2e073d-73b2-4be4-9e5c-c4ee0ddae058 ro quiet splash
ProcCmdline: /sbin/plymouthd --mode=shutdown
ProcEnviron: PATH=(custom, no user)
ProcFB:
 0 radeondrmfb
 1 VGA16 VGA
ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
SourcePackage: plymouth
Title: does not terminate at computer shutdown
Uname: Linux 2.6.32-16-generic x86_64
dmi.bios.date: 01/14/2010
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: v1.3110
dmi.board.name: California
dmi.board.vendor: Acer
dmi.board.version: Not Applicable
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrv1.3110:bd01/14/2010:svnAcer:pnFerrariOne200:pvrNotApplicable:rvnAcer:rnCalifornia:rvrNotApplicable:cvnAcer:ct10:cvrN/A:
dmi.product.name: Ferrari One 200
dmi.product.version: Not Applicable
dmi.sys.vendor: Acer