Public bug reported:
This issue suddenly started yesterday, even though I am not aware of any
configuration changes that could have been made in the past few days, so
I'm not entirely sure there's no hardware problem involved. Anyway, I
put another hard drive into the system and tested this with a fresh
Windows 7 install, where the system does NOT show the behavior in
question.
The display behaves normally until the kernel is loaded (in BIOS or
grub). As soon as the console switches to framebuffer, the display
starts to turn on and back off incessantly. When I kill acpid and do
"cat /proc/acpi/event", this is what I see:
...
button/lid LID 00000080 0000000f
button/lid LID 00000080 00000010
button/lid LID 00000080 00000011
button/lid LID 00000080 00000012
button/lid LID 00000080 00000013
...
with the lines appearing synchronously to the blinking of the LCD. When
I attach an external monitor, the monitor and the LCD switch on and off
at the same times.
By "while [ 1 ]; do cat /proc/acpi/button/lid/LID/state ; done" I see
that ACPI seems to think that the lid is opening and closing all of the
time.
When I add "vga=normal nomodeset" to the grub entry to disable the
framebuffer, this does not occur. However, standby mody doesn't work
properly any more, which it did before yesterday. Sporadically it works,
but most of the time the machine seems not to wake up again - either the
screens stays black, or I only get a blinking cursor and no virtual
consoles or X.org display. A few times gdm seems to have been completely
restarted, and only once did I get to the point where I could unlock the
previously running session.
Additionally, changing from the non-framebuffer virtual console to the
graphical console with Ctrl-Alt-F7 seems to trigger an event which makes
the system try to go into Standby mode, which fails due to an error
message saying "Access denied".
I tried the above with the mainline build linux-
image-2.6.35-02063504-generic_2.6.35-02063504.201008271919_i386. No
difference.
The machine in question is a Lenovo Thinkpad SL510, Type 2847, Model
7MG. I already installed the latest BIOS version, which helped
absolutely nothing.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image (not installed)
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-24.42-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
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: user 2918 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf2a00000 irq 22'
Mixer name : 'Realtek ALC269'
Components : 'HDA:10ec0269,17aa212c,00100004
HDA:80862802,80860101,00100000'
Controls : 16
Simple ctrls : 8
Date: Tue Sep 14 03:57:09 2010
HibernationDevice: RESUME=UUID=abd6a1ce-0678-498f-991e-c8995a668a56
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427.1)
MachineType: LENOVO 28477MG
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-24-generic
root=UUID=5528c753-28e3-4ae1-b58e-253ec5139d22 ro quiet splash vga=normal
nomodeset
ProcEnviron:
LANG=en_US.utf8
SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34.1
SourcePackage: linux
dmi.bios.date: 08/06/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6JET82WW (1.40 )
dmi.board.name: 28477MG
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr6JET82WW(1.40):bd08/06/2010:svnLENOVO:pn28477MG:pvrThinkPadSL510:rvnLENOVO:rn28477MG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 28477MG
dmi.product.version: ThinkPad SL510
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 lucid needs-upstream-testing
--
Thinkpad SL510 LCD switches on/off every second due to wrong button/lid events
https://bugs.launchpad.net/bugs/637729
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