Not getting native resolution on external monitor after installing kernel update

[Gustav H Meyer]

I can only get maximum resolution of 1024x768 on a Dell 19" Monitor with Dell Latitude E6220 after installing latest kernel updates and a reboot which is a regression after having been able to work at much higher resolution since getting the laptop some time ago.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-27-generic-pae 3.2.0-27.43
ProcVersionSignature: Ubuntu 3.2.0-27.43-generic-pae 3.2.21
Uname: Linux 3.2.0-27-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu11
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: gustav 2314 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xe1c60000 irq 45'
   Mixer name : 'Intel CougarPoint HDMI'
   Components : 'HDA:111d76e7,102804a9,00100102 HDA:80862805,80860101,00100000'
   Controls : 38
   Simple ctrls : 14
Date: Tue Jul 24 12:39:29 2012
HibernationDevice: RESUME=UUID=edbe77eb-25d0-49cc-a9f0-fa32e0161487
InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120228.1)
MachineType: Dell Inc. Latitude E6220
ProcEnviron:
 LANGUAGE=en_ZA:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_ZA.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-27-generic-pae root=UUID=e9af6cd7-9cae-404b-a554-81028465b6ef ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-27-generic-pae N/A
 linux-backports-modules-3.2.0-27-generic-pae N/A
 linux-firmware 1.79
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/18/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A04
dmi.board.name: 0862D8
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA04:bd10/18/2011:svnDellInc.:pnLatitudeE6220:pvr01:rvnDellInc.:rn0862D8:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E6220
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.

[penalvch (penalvch)]

Gustav H Meyer, as per http://www.dell.com/support/troubleshooting/us/en/19/Product/latitude-e6220 an update is available for your BIOS (A12). If you update to this, does it change anything?

If not, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Thank you for your understanding.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]