kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Wim Goeman, this bug was reported a while ago and there hasn't been any
activity in it recently. We were wondering if this is still an issue? If
so, could you please test for this with the latest development release
of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a Terminal
(Applications->Accessories->Terminal), as it will automatically gather
and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.13-rc1

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.


** Tags added: needs-full-computer-model needs-upstream-testing

** Changed in: linux (Ubuntu)
       Status: Triaged => Incomplete

-- 
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/881132

Title:
  vga_switcheroo makes system freeze

Status in The Linux Kernel:
  Confirmed
Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I am working with a new HP PC (dv7) which supports Hybrid Graphics in
  terms of the intel graphics and radeon graphics (as can bee found in
  lspci).

  Currently I am only working with the Intel integrated graphics, and
  both adapters are powered on.

  My goal was to deactivate the intel graphics and activate the radeon
  graphics, as the machine is plugged in to the power supply most of the
  time. To achieve this I tried the following:

  cat /sys/kernel/debug/vga_switcheroo/switch
  --> shows both cards are powered on and IGD is in use (the intel card)
  echo DIS > /sys/kernel/debug/vga_switcheroo/switch
  --> gives an error message because X is still running
  I kill the X session
  echo DIS >  /sys/kernel/debug/vga_switcheroo/switch
  After this command the system freezes completely. No warning or error, no blinking cursor, nothing. I have to power off using the power button.

  Any suggestions on how to fix this are welcome. Is this a bug in the
  kernel?

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: linux-image-3.0.0-12-generic 3.0.0-12.20
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  Uname: Linux 3.0.0-12-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu3
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  wim        1617 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xc7500000 irq 51'
     Mixer name	: 'Intel CougarPoint HDMI'
     Components	: 'HDA:111d7605,103c1659,00100105 HDA:80862805,80860101,00100000'
     Controls      : 18
     Simple ctrls  : 10
  Date: Mon Oct 24 23:55:59 2011
  HibernationDevice: RESUME=/dev/sda3
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  MachineType: Hewlett-Packard HP Pavilion dv7 Notebook PC
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=71fb680e-ac18-42aa-86fb-4618d70b3895 ro quiet splash modeset=1 hybridopts=ON,DIS,OFF vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-12-generic N/A
   linux-backports-modules-3.0.0-12-generic  N/A
   linux-firmware                            1.60
  SourcePackage: linux
  StagingDrivers: rts_pstor mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/20/2011
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.1A
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 1659
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 10.31
  dmi.chassis.asset.tag: Chassis Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnHewlett-Packard:bvrF.1A:bd07/20/2011:svnHewlett-Packard:pnHPPaviliondv7NotebookPC:pvr058F110000244610000620100:rvnHewlett-Packard:rn1659:rvr10.31:cvnHewlett-Packard:ct10:cvrChassisVersion:
  dmi.product.name: HP Pavilion dv7 Notebook PC
  dmi.product.version: 058F110000244610000620100
  dmi.sys.vendor: Hewlett-Packard

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