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It seems to be a bug in drm.ko or i915.ko kernel module.

I have blacklisted  intel_ips because of symbols  issues.
No problems with drm.ko and i915.ko blacklisted and driver vesa.
 
If I start without kernel parameters or with "i915.modeset=1 video=LVDS-1:1280x800@60e"
the screen is almost always blank and it requires opening and closing the lid a certain number of times in order to get the screen back.

If I start the kernel with parameters "i915.modeset=1 video=1280x800@60e"
then the screen is not blank. I guess it is because also the VGA-1 adapter is turned on even if there is not a vga screen connected. Then I have to manually correct the screen resolution.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: xorg 1:7.5+6ubuntu3
ProcVersionSignature: Ubuntu 2.6.35-27.48-generic 2.6.35.11
Uname: Linux 2.6.35-27-generic i686
NonfreeKernelModules: wl
Architecture: i386
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1280x800
 edid-base64: AP///////wBMo0FNAAAAAAASAQOAGhB4Cof1lFdPjCcnUFQAAAABAQEBAQEBAQEBAQEBAQEBEhsASVAgNjAQMBMABaMQAAAZAAAADwAAAAAAAAAAACOHAmQAAAAA/gBTQU1TVU5HCiAgICAgAAAA/gAxMjFBVDA5LUgwMQogAB4=
DRM.card0.VGA.1:
 status: disconnected
 enabled: enabled
 dpms: Off
 modes: 1024x768 800x600 800x600 848x480 640x480
 edid-base64:
Date: Fri Mar  4 14:13:01 2011
DkmsStatus:
 bcmwl, 5.60.48.36+bdcom, 2.6.35-25-generic, i686: installed 
 bcmwl, 5.60.48.36+bdcom, 2.6.35-27-generic, i686: installed 
 bcmwl, 5.60.48.36+bdcom, 2.6.35-22-generic, i686: installed 
 virtualbox-ose, 3.2.8, 2.6.35-25-generic, i686: installed 
 virtualbox-ose, 3.2.8, 2.6.35-27-generic, i686: installed
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: Hewlett-Packard HP TouchSmart tm2 Notebook PC
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-27-generic root=UUID=c39f8568-fbd4-4ce0-8bb6-cbfb96b9ec92 ro i915.modeset=1 video=1280x800@60e
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
dmi.bios.date: 06/03/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.05
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 1486
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 83.15
dmi.chassis.asset.tag: CNU026078B
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.05:bd06/03/2010:svnHewlett-Packard:pnHPTouchSmarttm2NotebookPC:pvr0489200000252A20001220000:rvnHewlett-Packard:rn1486:rvrKBCVersion83.15:cvnHewlett-Packard:ct10:cvrN/A:
dmi.product.name: HP TouchSmart tm2 Notebook PC
dmi.product.version: 0489200000252A20001220000
dmi.sys.vendor: Hewlett-Packard
system:
 distro:             Ubuntu
 codename:           maverick
 architecture:       i686
 kernel:             2.6.35-27-generic

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 maverick
-- 
Screen almost always blank after boot
https://bugs.launchpad.net/bugs/729068
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