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