nVidia TwinView resolution not supported by X

[Paul]

Binary package hint: xorg

The proprietary nVidia driver seems to be treating the two 1920x1200 monitors as one 3840x1200 monitor. This resolution is then not supported by the X Server, causing the error message on login:

'Could not apply the stored configuration for monitors
X Server does not support size requested'

However, the display still works as expected.

[Original]
Since upgrading to Lucid, I am getting the following dialog warning on login:

'Could not apply the stored configuration for monitors
X Server does not support size requested'

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: xorg 1:7.5+6ubuntu3
ProcVersionSignature: Ubuntu 2.6.35-24.42-generic 2.6.35.8
Uname: Linux 2.6.35-24-generic i686
NonfreeKernelModules: nvidia
.proc.driver.nvidia.agp.card:
 Fast Writes: Supported
 SBA: Supported
 AGP Rates: 4x 2x 1x
 Registers: 0x1f000217:0x1f000104
.proc.driver.nvidia.agp.host.bridge:
 Host Bridge: PCI device 8086:2560
 Fast Writes: Supported
 SBA: Supported
 AGP Rates: 4x 2x 1x
 Registers: 0x1f000217:0x00000104
.proc.driver.nvidia.agp.status:
 Status: Enabled
 Driver: AGPGART
 AGP Rate: 4x
 Fast Writes: Disabled
 SBA: Disabled
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86 Kernel Module 173.14.28 Wed Sep 29 09:47:25 PDT 2010
 GCC version: gcc version 4.4.5 (Ubuntu/Linaro 4.4.4-14ubuntu5)
Architecture: i386
CurrentDmesg:
 [ 123.612187] usb 1-2: usbfs: USBDEVFS_CONTROL failed cmd udev-configure- rqt 161 rq 0 len 1024 ret -110
 [ 1262.615128] lo: Disabled Privacy Extensions
 [ 1697.595005] lo: Disabled Privacy Extensions
Date: Fri Jan 7 15:10:43 2011
DkmsStatus:
 nvidia-173, 173.14.28, 2.6.35-24-generic, i686: installed
 nvidia-173, 173.14.28, 2.6.35-23-generic, i686: installed
MachineType: Ipex I.T.G. System Name
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-24-generic root=UUID=79d58fea-fe79-4cb1-8318-99ca00908a11 ro quiet splash
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
dmi.bios.date: 12/08/2003
dmi.bios.vendor: Award Software, Inc.
dmi.bios.version: (6A69VA0Y) ASUS P4B533-VM BIOS by eSupport.com
dmi.board.name: P4B533VM
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: REV 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 7
dmi.chassis.vendor: Ipex I.T.G.
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAwardSoftware,Inc.:bvr(6A69VA0Y)ASUSP4B533-VMBIOSbyeSupport.com:bd12/08/2003:svnIpexI.T.G.:pnSystemName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP4B533VM:rvrREV1.xx:cvnIpexI.T.G.:ct7:cvrChassisVersion:
dmi.product.name: System Name
dmi.product.version: System Version
dmi.sys.vendor: Ipex I.T.G.
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro: Ubuntu
 codename: maverick
 architecture: i686
 kernel: 2.6.35-24-generic