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[Launchpad Bug Tracker <1085837@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

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

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https://bugs.launchpad.net/bugs/1085837

Title:
  [Asus K40AB] Resume from suspend to blank screen

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  After suspend to RAM, while resume I receive black screen, and high-speed fans. Nothing works, system seems to be stacked, Ctrl+Alt+F2 doesn't work, no reaction for Caps/Scroll lock. Only "magic keys" works, or hard shutdown holding "Power" button. I use notebook Asus K40AB with 2 ATi videocards: integrated 3200 and discrete 4570. Bugs only appears when PowerXpress is on. Using 3200 videocard for work (it's running X) and 4570 for some 3d (using DRI_PRIME). Setting OFF or ON at /sys/kernel/debug/vgaswitcheroo/switch doesn't make any changes. Ubuntu 12.10 with xorg-edgers/ppa (for xserver-xorg 1.13).
  Tried to use pf-kernel 3.6.7 and 3.6.8, but still have the problem. I think the problem is in GPU init, because without PowerXpress everything is fine.

  WORKAROUND: Turn off PowerXpress and set dGPU.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: linux-image-3.5.0-17-generic 3.5.0-17.28
  ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
  Uname: Linux 3.5.0-17-generic x86_64
  ApportVersion: 2.6.1-0ubuntu6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ekzotech   1934 F.... pulseaudio
  CRDA:
   country RU:
    (2402 - 2482 @ 40), (N/A, 20)
    (5735 - 5835 @ 20), (N/A, 30)
  CurrentDmesg:
   [   22.440539] vgaarb: device changed decodes: PCI:0000:02:00.0,olddecodes=io+mem,decodes=none:owns=none
   [   22.440546] vgaarb: device changed decodes: PCI:0000:01:05.0,olddecodes=io+mem,decodes=none:owns=io+mem
  Date: Mon Dec  3 14:58:10 2012
  HibernationDevice: RESUME=UUID=810dbdf9-49f5-4c9c-b09a-b27b6ac8d525
  InstallationDate: Installed on 2012-11-27 (5 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: ASUSTeK Computer INC. K40AB
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=ru_RU.UTF-8
   SHELL=/bin/bash
  ProcFB:
   0 radeondrmfb
   1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-17-generic root=UUID=db8673a8-3607-4694-80a9-f3498929c953 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-17-generic N/A
   linux-backports-modules-3.5.0-17-generic  N/A
   linux-firmware                            1.97
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/13/2009
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 220
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: K40AB
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: 1.00
  dmi.chassis.asset.tag: 0x00000000
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTek Computer INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr220:bd11/13/2009:svnASUSTeKComputerINC.:pnK40AB:pvr1.0:rvnASUSTeKComputerINC.:rnK40AB:rvr1.00:cvnASUSTekComputerINC.:ct10:cvr1.0:
  dmi.product.name: K40AB
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer INC.

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