kernel-packages team mailing list archive

[Andreas Hasenack <andreas@xxxxxxxxxxxxx>]

fwiw, it still happens with:
$ uname -a
Linux nsn7 3.19.0-30-generic #33~14.04.1-Ubuntu SMP Tue Sep 22 09:27:00 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux


And the BIOS is newer also:
# dmidecode -s bios-version
83ET76WW (1.46 )

T420

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/922037

Title:
  10de:1057 "reduce brightness" key freezes system

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  When I have the Nvidia discrete graphics selected in the bios,
  pressing the "reduce brightness" key (blue fn + end), the system
  freezes. It doesn't matter if I'm in X or in text mode, it happens all
  the time.

  I did it while watching the logs (/var/log/syslog, ~/.xsession-errors)
  and even the debug console when in text mode (F8 iirc), but nothing
  was written there.

  The machine was also unreachable from the network after the fact.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: linux-image (not installed)
  ProcVersionSignature: Ubuntu 3.0.0-15.26-generic 3.0.13
  Uname: Linux 3.0.0-15-generic x86_64
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  andreas    2535 F.... pulseaudio
   /dev/snd/controlC0:  andreas    2535 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf5320000 irq 46'
     Mixer name	: 'Conexant CX20590'
     Components	: 'HDA:14f1506e,17aa21ce,00100002'
     Controls      : 9
     Simple ctrls  : 6
  Card1.Amixer.info:
   Card hw:1 'NVidia'/'HDA NVidia at 0xf3000000 irq 17'
     Mixer name	: 'Nvidia GPU 1c HDMI/DP'
     Components	: 'HDA:10de001c,17aa21ce,00100100'
     Controls      : 4
     Simple ctrls  : 1
  Card1.Amixer.values:
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Card29.Amixer.info:
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown'
     Mixer name	: 'ThinkPad EC (unknown)'
     Components	: ''
     Controls      : 1
     Simple ctrls  : 1
  Card29.Amixer.values:
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Date: Thu Jan 26 09:44:29 2012
  HibernationDevice: RESUME=UUID=0e0159cb-88a6-4653-9902-6c3934f00ef7
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
  MachineType: LENOVO 4177CTO
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-15-generic root=/dev/mapper/vg0-root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-15-generic N/A
   linux-backports-modules-3.0.0-15-generic  N/A
   linux-firmware                            1.60
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/29/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 83ET63WW (1.33 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4177CTO
  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:bvr83ET63WW(1.33):bd07/29/2011:svnLENOVO:pn4177CTO:pvrThinkPadT420:rvnLENOVO:rn4177CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4177CTO
  dmi.product.version: ThinkPad T420
  dmi.sys.vendor: LENOVO

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/922037/+subscriptions