Laptop LCD goes black after booting

[Dan O'Connor]

This bug occurs with 3.2.0-32-generic. I'm on a Dell E6510 with integrated Intel Graphics running 12.04LTS. System Settings->Details->Graphics says Iten Ironlake Mobile.

It does NOT occur with 3.2.0-31-generic.

After booting, the laptop display goes blank, external displays work correctly.

If I add nomodeset to the GRUB boot line, the laptop display will work (booting into 3.2.0-32) but external display support is limited a single display and the resolution of the laptop display. The Display control panel shows that only the Laptop display is active even though it is being displayed on an external monitor (the laptop lid is closed).

Please let me know what other debugging information is needed.

Thanks
Dan

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-31-generic 3.2.0-31.50
ProcVersionSignature: Ubuntu 3.2.0-31.50-generic 3.2.28
Uname: Linux 3.2.0-31-generic x86_64
NonfreeKernelModules: wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu14
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: dano 3200 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf6960000 irq 43'
   Mixer name : 'Intel IbexPeak HDMI'
   Components : 'HDA:111d76d5,1028040b,00100104 HDA:80862804,80860101,00100000'
   Controls : 38
   Simple ctrls : 14
Date: Fri Nov 9 11:34:28 2012
HibernationDevice: RESUME=UUID=bc815f7e-2855-4d3b-98e7-2edb8dbdfd42
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
IwConfig: Error: [Errno 2] No such file or directory
MachineType: Dell Inc. Latitude E6510
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-31-generic root=UUID=70afe29a-a2f2-46f7-8d23-1a702874de14 ro acpi=force irqpoll quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-31-generic N/A
 linux-backports-modules-3.2.0-31-generic N/A
 linux-firmware 1.79.1
RfKill: Error: [Errno 2] No such file or directory
SourcePackage: linux
UdevDb: Error: [Errno 2] No such file or directory
UpgradeStatus: Upgraded to precise on 2012-05-05 (187 days ago)
dmi.bios.date: 11/20/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A06
dmi.board.name: 02K3Y4
dmi.board.vendor: Dell Inc.
dmi.board.version: A02
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA06:bd11/20/2010:svnDellInc.:pnLatitudeE6510:pvr0001:rvnDellInc.:rn02K3Y4:rvrA02:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E6510
dmi.product.version: 0001
dmi.sys.vendor: Dell Inc.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Cybjit (cybjit)]

I bisected this

d3f281cf0493885d92ffc8e2c9e7e4e6d838d6a5 is the first bad commit
commit d3f281cf0493885d92ffc8e2c9e7e4e6d838d6a5
Author: Daniel Vetter <email address hidden>
Date: Fri Aug 10 11:10:20 2012 +0200

    drm/i915: ignore eDP bpc settings from vbt

    BugLink: http://bugs.launchpad.net/bugs/1049899

    commit 4344b813f105a19f793f1fd93ad775b784648b95 upstream.

    This has originally been introduced to not oversubscribe the dp links
    in

    commit 885a5fb5b120a5c7e0b3baad7b0feb5a89f76c18
    Author: Zhenyu Wang <email address hidden>
    Date: Tue Jan 12 05:38:31 2010 +0800

        drm/i915: fix pixel color depth setting on eDP

    Since then we've fixed up the dp link bandwidth calculation code and
    should now automatically fall back to 6bpc dithering. So this is
    unnecessary.

    Furthermore it seems to break the new MacbookPro with retina display,
    hence let's just rip this out.

    Reported-by: Benoit Gschwind <email address hidden>
    Cc: Benoit Gschwind <email address hidden>
    Cc: Francois Rigaut <email address hidden>
    Cc: Greg KH <email address hidden>
    Tested-by: Benoit Gschwind <email address hidden>
    Tested-by: Bernhard Froemel <froemel at vmars tuwien.ac.at>
    Signed-off-by: Daniel Vetter <email address hidden>

    --

    Testing feedback highgly welcome, and thanks for Benoit for finding
    out that the bpc computations are busted.
    -Daniel
    Signed-off-by: Ben Hutchings <email address hidden>
    Signed-off-by: Herton Ronaldo Krzesinski <email address hidden>

:040000 040000 9f64f0229b57f38a83c5a7040d6202557dc63940 53dc0ef26bef49a62dbdd317e218c05bf9330d62 M drivers

[Cybjit (cybjit)]

Possibly a duplicate of bug #1070978, but suspend/resume does not fix it.

[Robert Hooker (sarvatt)]

Mind posting your /var/log/Xorg.0.log from a successful boot on 3.2.0-31 to add it to an upstream bug report?

[Dan O'Connor (doconnor)]

Here is the latest Xorg.0.log from a boot into the .31 (working) kernel.

-Dan

[Arnaud MERGEY (amergey)]

Exactly same issue for me described here, but with a dell latitude E5510
Running 12.04LTS, after booting since 3.2.0-32-generic, the laptop display goes black, external displays work correctly.
It does NOT occur with 3.2.0-31-generic.

The today upgrade to 3.5 did not solve this issue

[palinek (palinek)]

Same behaviour with kernel >= 3.2.0-32 here (also dell latitude e5510 running 12.04LTS).
With kernel 3.2.0-31 everything is fine

[Dan O'Connor (doconnor)]

I just tested the 3.2.0-33 kernel that was just released. I behaves the
same as .32.

Regards,
Dan

On 11/16/2012 05:02 AM, palinek wrote:
> Same behaviour with kernel >= 3.2.0-32 here (also dell latitude e5510 running 12.04LTS).
> With kernel 3.2.0-31 everything is fine
>

[palinek (palinek)]

Now on kernel 3.2.0-34 and screen is working ...

[Andreas Stöckel (andreas-stoeckel)]

I can confirm that with kernel 3.2.0-34 the problem is solved on my Dell Latitude E5510

[Dan O'Connor (doconnor)]

Also, I can confirm that with kernel 3.2.0-34 the problem is solved on
my Dell Latitude E6510

Regards,
Dan

On 11/30/2012 05:20 PM, Andreas Stöckel wrote:
> I can confirm that with kernel 3.2.0-34 the problem is solved on my Dell
> Latitude E5510
>

[Kim Mason (kim-mason)]

After a clean installation of Ubuntu 12.10 AMD-64 on a Dell Latitude E5510, I have the same problem.

The versions of the kernel that I found exhibiting the problem are:

3.5.0-17.28
3.5.0-19.30

I installed the latest stable kernel, that being:

3.6.10-030610.201212101650

and the problem is completely solved in that kernel.

[Kim Mason (kim-mason)]

I can further confirm that the 3.5.7-03050701-generic kernel does not have this problem on a Dell Latitude E5510.

[Kim Mason (kim-mason)]

The recently released 3.5.0-21-generic kernel does not exhibit this problem on a Dell Latitude E5510.

[Julian Wiedmann (jwiedmann)]

Closing as fixed, per comment #12.