After ctrl-alt-f1 then ctrl-alt-f7 virtual console remains on inactive display

Binary package hint: xserver-xorg-video-intel

I am using a laptop hooked to an external monitor. The laptop display is "off" in display preferences, and is off when logging in. However, when I switch to a virtual console (ctrl-alt-f1) both displays are used. Then I switch back (ctrl-alt-f7) and a static image of the virtual console is left on the laptop display. Also, current cursor image is shown on the laptop monitor, but does not move around. If I switch back using ctrl-alt-f1, both displays are again used for the virtual console.

ProblemType: Bug
Architecture: i386
Date: Sat Jul 11 17:53:18 2009
DistroRelease: Ubuntu 9.10
MachineType: TOSHIBA Satellite A205
Package: xserver-xorg-video-intel 2:2.7.99.901+git20090702.74227141-0ubuntu1
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-2-generic root=UUID=ea05307a-55d9-46d6-99c3-8d0fded95996 ro quiet splash
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-2.17-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu5
 libgl1-mesa-glx 7.5~rc4-1ubuntu3
 libdrm2 2.4.11-1ubuntu1
 xserver-xorg-video-intel 2:2.7.99.901+git20090702.74227141-0ubuntu1
 xserver-xorg-video-ati 1:6.12.99+git20090629.f39cafc5-0ubuntu1
SourcePackage: xserver-xorg-video-intel
Uname: Linux 2.6.31-2-generic i686
dmi.bios.date: 03/10/2008
dmi.bios.vendor: TOSHIBA
dmi.bios.version: V2.20
dmi.board.name: ISKAA
dmi.board.vendor: TOSHIBA
dmi.board.version: 1.00
dmi.chassis.asset.tag: *
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnTOSHIBA:bvrV2.20:bd03/10/2008:svnTOSHIBA:pnSatelliteA205:pvrPSAE3U-07Y023:rvnTOSHIBA:rnISKAA:rvr1.00:cvnTOSHIBA:ct10:cvrN/A:
dmi.product.name: Satellite A205
dmi.product.version: PSAE3U-07Y023
dmi.sys.vendor: TOSHIBA
fglrx: Not loaded
system:
 distro: Ubuntu
 architecture: i686kernel: 2.6.31-2-generic