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[Launchpad Bug Tracker <1466950@xxxxxxxxxxxxxxxxxx>]

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

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

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https://bugs.launchpad.net/bugs/1466950

Title:
  drm complains bitterly when discrete graphics turned off

Status in xorg package in Ubuntu:
  Expired

Bug description:
  I'm using radeon.dpm=0 and radeon.runpm=0 for reasons explained in a
  previous bug report.

  I'm able to turn the radeon discrete graphics off using

  echo IGD > /sys/kernel/debug/vgaswitcheroo/switch
  echo OFF > /sys/kernel/debug/vgaswitcheroo/switch

  and my power consumption drops dramatically to a nice low level,
  but then the kernel log starts filling up with all sorts of complaints from drm:

  Jun 19 10:19:43 HP-ubuntu kernel: [  360.548772] radeon: switched off
  Jun 19 10:19:44 HP-ubuntu kernel: [  361.083818] radeon 0000:02:00.0: couldn't schedule ib
  Jun 19 10:19:44 HP-ubuntu kernel: [  361.083872] [drm:radeon_cs_ioctl [radeon]] *ERROR* Failed to schedule IB !
  Jun 19 10:19:44 HP-ubuntu kernel: [  361.098291] radeon 0000:02:00.0: couldn't schedule ib
  Jun 19 10:19:44 HP-ubuntu kernel: [  361.098365] [drm:radeon_cs_ioctl [radeon]] *ERROR* Failed to schedule IB !
  Jun 19 10:19:44 HP-ubuntu kernel: [  361.800076] radeon 0000:02:00.0: couldn't schedule ib
  Jun 19 10:19:44 HP-ubuntu kernel: [  361.800117] [drm:radeon_cs_ioctl [radeon]] *ERROR* Failed to schedule IB !
  Jun 19 10:19:44 HP-ubuntu kernel: [  361.874996] radeon 0000:02:00.0: couldn't schedule ib
  Jun 19 10:19:44 HP-ubuntu kernel: [  361.875074] [drm:radeon_cs_ioctl [radeon]] *ERROR* Failed to schedule IB !
  Jun 19 10:19:44 HP-ubuntu kernel: [  361.892348] radeon 0000:02:00.0: couldn't schedule ib
  Jun 19 10:19:44 HP-ubuntu kernel: [  361.892425] [drm:radeon_cs_ioctl [radeon]] *ERROR* Failed to schedule IB !
  Jun 19 10:19:45 HP-ubuntu kernel: [  362.083837] radeon 0000:02:00.0: couldn't schedule ib
  Jun 19 10:19:45 HP-ubuntu kernel: [  362.083909] [drm:radeon_cs_ioctl [radeon]] *ERROR* Failed to schedule IB !
  Jun 19 10:19:45 HP-ubuntu kernel: [  362.098414] radeon 0000:02:00.0: couldn't schedule ib
  Jun 19 10:19:45 HP-ubuntu kernel: [  362.098485] [drm:radeon_cs_ioctl [radeon]] *ERROR* Failed to schedule IB !
  Jun 19 10:19:45 HP-ubuntu kernel: [  362.143361] radeon 0000:02:00.0: couldn't schedule ib

  etc., at a great rate!

  The whole point of the exercise is to keep the discrete graphics off,
  so why is drm:radeon_cs_ioctl still trying to issue commands to it?

  Also, Ubuntu doesn't want to shut down cleanly after the radeon
  discrete graphics unit is turned off.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: xorg 1:7.7+7ubuntu4
  ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8
  Uname: Linux 3.19.0-21-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Fri Jun 19 10:20:25 2015
  DistUpgraded: Fresh install
  DistroCodename: vivid
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Advanced Micro Devices, Inc. [AMD/ATI] RS880M [Mobility Radeon HD 4225/4250] [1002:9712] (prog-if 00 [VGA controller])
     Subsystem: Hewlett-Packard Company Device [103c:1641]
   Advanced Micro Devices, Inc. [AMD/ATI] Robson CE [Radeon HD 6370M/7370M] [1002:68e4] (rev ff) (prog-if ff)
  InstallationDate: Installed on 2015-06-06 (13 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: Hewlett-Packard HP Pavilion dv7 Notebook PC
  ProcEnviron:
   LANGUAGE=en_US
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-21-generic root=UUID=0a49d103-e2eb-4b21-a433-c41a1ef8d27b ro quiet splash radeon.runpm=0 radeon.dpm=0 radeon.audio=0 radeon.pcie_gen2=0 acpiphp.disable=1 vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/25/2013
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.29
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 1641
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 67.33
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnHewlett-Packard:bvrF.29:bd02/25/2013:svnHewlett-Packard:pnHPPaviliondv7NotebookPC:pvr0583120000242B20000620100:rvnHewlett-Packard:rn1641:rvr67.33:cvnHewlett-Packard:ct10:cvrN/A:
  dmi.product.name: HP Pavilion dv7 Notebook PC
  dmi.product.version: 0583120000242B20000620100
  dmi.sys.vendor: Hewlett-Packard
  version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.60-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
  xserver.bootTime: Fri Jun 19 10:14:07 2015
  xserver.configfile: default
  xserver.errors: RADEON(G0): [XvMC] Failed to initialize extension.
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.17.1-0ubuntu3
  xserver.video_driver: radeon

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