system test fail on cycle through the detected video modes

Binary package hint: x11-xserver-utils

I'm running the test system and it fails on the test "cycle through the detected video modes for your system."

ProblemType: Bug
Architecture: amd64
CheckboxCommand: xrandr_cycle
CheckboxTest: xrandr_cycle
Date: Sun Sep 20 03:02:16 2009
DistroRelease: Ubuntu 9.10
MachineType: Dell Inc Dimension E521
Package: x11-xserver-utils 7.4+2ubuntu3
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-10-generic root=UUID=8a54cd56-980a-48b2-9cfa-217595c40774 ro splash
ProcEnviron:
 SHELL=/bin/bash
 LANG=fr_FR.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-10.34-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu5
 libgl1-mesa-glx 7.6.0~git20090817.7c422387-0ubuntu5
 libdrm2 2.4.13-1ubuntu1
 xserver-xorg-video-intel 2:2.8.1-1ubuntu1
 xserver-xorg-video-ati 1:6.12.99+git20090825.fc74e119-0ubuntu1
SourcePackage: x11-xserver-utils
Tags: checkbox-bug
Uname: Linux 2.6.31-10-generic x86_64
dmi.bios.date: 08/02/2007
dmi.bios.vendor: Dell Inc
dmi.bios.version: 1.1.11
dmi.board.name: 0CT103
dmi.board.vendor: Dell Inc
dmi.board.version: A04
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc
dmi.modalias: dmi:bvnDellInc:bvr1.1.11:bd08/02/2007:svnDellInc:pnDimensionE521:pvr:rvnDellInc:rn0CT103:rvrA04:cvnDellInc:ct3:cvr:
dmi.product.name: Dimension E521
dmi.sys.vendor: Dell Inc
fglrx: Not loaded
system:
 distro: Ubuntu
 architecture: x86_64kernel: 2.6.31-10-generic

[lspci]
03:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV516 [Radeon X1300/X1550 Series] [1002:7183]
     Subsystem: Dell Device [1028:0302]