Can't use native resolution on 2.6.31

[Juan Sebastián Marulanda]

After upgrading to 2.6.31, I'm unable to use my screen native resolution, which is 1400x900. I can only choose 4:3 and 5:4 resolutions, being 1152x854 the more usable for me at the moment. This affects both generic and generic-pae kernels. When booting into 2.6.30, I have no issues with my display, though.

ProblemType: Bug
Architecture: i386
Date: Wed Jul 1 15:49:06 2009
DistroRelease: Ubuntu 9.10
HibernationDevice: RESUME=UUID=6804a210-150d-4044-938d-8581ce8adc70
Package: linux-image-2.6.31-1-generic-pae 2.6.31-1.13
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-1-generic-pae root=UUID=93469d8a-de2b-4ba1-aa65-806e3e03f86b ro quiet splash
ProcEnviron:
 LANG=es_CO.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-1.13-generic-pae
RelatedPackageVersions: linux-backports-modules-2.6.31-1-generic-pae 2.6.31-1.1
SourcePackage: linux
Uname: Linux 2.6.31-1-generic-pae i686
dmi.bios.date: 05/21/2009
dmi.bios.vendor: Intel Corp.
dmi.bios.version: ECG3510M.86A.0115.2009.0521.1411
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: DG35EC
dmi.board.vendor: Intel Corporation
dmi.board.version: AAE29266-205
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorp.:bvrECG3510M.86A.0115.2009.0521.1411:bd05/21/2009:svn:pn:pvr:rvnIntelCorporation:rnDG35EC:rvrAAE29266-205:cvn:ct3:cvr:

[Andreas Schildbach (schildbach)]

This is a duplicate of bug 394492.