[lucid][i915] Lenovo U160 blank screen on LVDS-1

[Sascha Lars Strodthoff]

I installed the system with the options 'i915.modeset=0 xforcevesa'.
I only can run LVDS-1 with vesa and i915.modeset=0.
When an external screen is connected on VGA-1, you can only see the desktop on VGA-1. On LVDS-1 is only the backlight working and it looks like a 'blank screen'.

xrandr throws out:
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 8192 x 8192
VGA1 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 376mm x 301mm
   1280x1024 60.0*+ 75.0
   1152x864 75.0
   1024x768 75.1 75.0 60.0
   832x624 74.6
   800x600 75.0 60.3
   640x480 75.0 60.0
   720x400 70.1
LVDS1 connected 800x600+0+0 (normal left inverted right x axis y axis) 256mm x 144mm
   1366x768 59.8 +
   800x600 60.3*
   640x480 59.9
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-24-generic 2.6.32-24.38
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-24.38-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic x86_64
NonfreeKernelModules: wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: sascha 1385 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0800000 irq 22'
   Mixer name : 'Intel G45 DEVIBX'
   Components : 'HDA:10ec0269,17aa600a,00100100 HDA:80862804,80860101,00100000'
   Controls : 15
   Simple ctrls : 8
Date: Tue Jul 27 10:21:03 2010
HibernationDevice: RESUME=UUID=5d3e1ed8-95f9-4b92-8c6f-4831afbff325
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
MachineType: LENOVO 08946EG
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-24-generic root=UUID=471cea08-9ea5-468b-b482-13cbfa497799 ro quiet
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34.1
RfKill:

SourcePackage: linux
dmi.bios.date: 05/10/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 33CN14WW
dmi.board.asset.tag: Tag 12345
dmi.board.name: MoutCook
dmi.board.vendor: LENOVO
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnLENOVO:bvr33CN14WW:bd05/10/2010:svnLENOVO:pn08946EG:pvrLENOVOIdeapadU160:rvnLENOVO:rnMoutCook:rvrNotApplicable:cvnLENOVO:ct10:cvrN/A:
dmi.product.name: 08946EG
dmi.product.version: LENOVO Ideapad U160
dmi.sys.vendor: LENOVO

[kernel-janitor (kernel-janitor)]

Hi Sascha,

If you could also please test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

    [This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Sascha Lars Strodthoff (sascha-krabbelmonster)]

Hi,
today I tested the Mainline Kernel 'v2.6.32.18-lucid' without success.
It looks like the same.

It also happen when I boot with the option 'i915.modeset=0 single' into the root console and reload the module i915 with modeset=1.

Is there anything else I can do ?

Sascha

[Christian Wehrfritz (cfritz)]

Hi,

as I'm expiriencing the same, even with kernel 2.6.36-RC1, I filed a bug at https://bugs.freedesktop.org/show_bug.cgi?id=29647

Regards,
Christian

[isync (o-zucker)]

2.6.35-24-generic, Ubuntu 10.10 i386 on Intel i3 U3400, as described: only working in fall-back vesa-mode, at unpleasing 1024x768...

[Árpád Lukács (lukacs-arpad)]

The freedesktop bug id 29647 linked above has been marked as a duplicate of bug 31596. In that thread (https://bugs.freedesktop.org/show_bug.cgi?id=31596) a patch has been posted (https://bugs.freedesktop.org/attachment.cgi?id=41123). I recompiled ubuntu kernel 2.6.35-24-generic on a 64 bit machine with that patch applied, and it did fix the problem. I am writing this post from my U160, running kubuntu 10.10 with the patched kernel.

Regards,
            Árpád