Comment 12 for bug 575985

During boot my screen goes blank. Instead of a normal plymouth screen I see something like this:

[drm:edid_is_valid] *ERROR* Raw EDID
[drm:edid_is_valid] *ERROR* Raw EDID
[drm:edid_is_valid] *ERROR* Raw EDID

this might be a problem with intel's i915 chipset. This bug comes new with 10.04 - it never appeared with ubuntu 9.10.

kern.log (examples):
----------
 May 5 20:30:00 jan-vaio-vgn-tz31-vn kernel: [ 700.891251] [drm:edid_is_valid] *ERROR* Raw EDID:
May 5 20:30:00 jan-vaio-vgn-tz31-vn kernel: [ 700.891261] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:00 jan-vaio-vgn-tz31-vn kernel: [ 700.891264] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:00 jan-vaio-vgn-tz31-vn kernel: [ 700.891268] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:00 jan-vaio-vgn-tz31-vn kernel: [ 700.891271] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:00 jan-vaio-vgn-tz31-vn kernel: [ 700.891274] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:00 jan-vaio-vgn-tz31-vn kernel: [ 700.891277] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:00 jan-vaio-vgn-tz31-vn kernel: [ 700.891280] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:00 jan-vaio-vgn-tz31-vn kernel: [ 700.891283] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:00 jan-vaio-vgn-tz31-vn kernel: [ 700.891286]
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.261392] [drm:edid_is_valid] *ERROR* Raw EDID:
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.261400] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.261404] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.261407] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.261410] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.261414] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.261417] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.261420] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.261423] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.261426]
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.629793] [drm:edid_is_valid] *ERROR* Raw EDID:
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.629802] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.629805] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.629809] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.629812] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.629815] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.629818] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.629821] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.629824] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.629827]
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.996977] [drm:edid_is_valid] *ERROR* Raw EDID:
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.996984] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.996987] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.996991] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.996994] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.996997] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.997000] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.997003] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.997006] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.997009]
May 5 20:30:01 jan-vaio-vgn-tz31-vn kernel: [ 701.997014] i915 0000:00:02.0: LVDS-1: EDID invalid.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-22-generic 2.6.32-22.33
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC262 Analog [ALC262 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC262 Analog [ALC262 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jan 1355 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfc540000 irq 19'
   Mixer name : 'Realtek ALC262'
   Components : 'HDA:10ec0262,104d1f00,00100100 HDA:14f12c06,104d1700,00100000'
   Controls : 18
   Simple ctrls : 11
Date: Wed May 5 21:28:55 2010
Frequency: Once a day.
HibernationDevice: RESUME=UUID=ad91734c-7a91-4f0b-9ce9-00a231f658c5
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
MachineType: Sony Corporation VGN-TZ31VN_X
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=UUID=a161045e-563e-4161-8fd0-0a2ca9bc14cd ro quiet splash
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34
SourcePackage: linux
StagingDrivers: phison
Title: [STAGING]
dmi.bios.date: 02/07/2008
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: R0091N7
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrR0091N7:bd02/07/2008:svnSonyCorporation:pnVGN-TZ31VN_X:pvrJ003AHVP:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VGN-TZ31VN_X
dmi.product.version: J003AHVP
dmi.sys.vendor: Sony Corporation