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[Bug 1406222] Re: Can't switch to Radeon rendering


Guillermo Lo Coco, would you have an option in BIOS allowing the use of
only the AMD card?

** Changed in: xorg (Ubuntu)
   Importance: Undecided => Low

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  Can't switch to Radeon rendering

Status in xorg package in Ubuntu:

Bug description:
  After playing a lot, I can't swith from integrated Intel to Discrete
  Radeon VGA.


  0:DIS-Audio: :Off:0000:01:00.1
  1:DIS: :DynOff:0000:01:00.0

  If: "echo DIS > ...../switch" display turn off. 
  I tried make an script, switching to DIS and after launching a modified xorg.conf. But even that, none seem to happend. Screen still off.
  GLXHEAD show rendering with INTEL instead of discrete Radeon:
  root@labPC:/tmp# glxheads 
  glxheads: exercise multiple GLX connections (any key = exit)
    glxheads xdisplayname ...
    glxheads :0 mars:0 venus:1
  Name: :0
    Display:     0x1302010
    Window:      0x4400003
    Context:     0x13134f0
    GL_VERSION:  2.1 Mesa 10.3.2
    GL_VENDOR:   Intel Open Source Technology Center
    GL_RENDERER: Mesa DRI Intel(R) Ironlake Mobile 

  Any openGL rendering app run slow.

  My question is, How can I enable Discrete Radeon GPU ?

  Thanks in advance!

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: xorg 1:7.7+7ubuntu2
  Uname: Linux 3.19.0-031900rc1-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8
  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: Mon Dec 29 09:25:17 2014
  DistUpgraded: Fresh install
  DistroCodename: utopic
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
   Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller])
     Subsystem: Hewlett-Packard Company Device [103c:143a]
   Advanced Micro Devices, Inc. [AMD/ATI] Park [Mobility Radeon HD 5430/5450/5470] [1002:68e0] (prog-if 00 [VGA controller])
     Subsystem: Hewlett-Packard Company Device [103c:143a]
  InstallationDate: Installed on 2014-11-05 (53 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  LightdmGreeterLog: ** (lightdm-gtk-greeter:4854): WARNING **: Failed to load user image: Failed to open file '/home/lab/.face': No such file or directory
   ** (lightdm-gtk-greeter:9939): WARNING **: Failed to load user image: Failed to open file '/home/lab/.face': No such file or directory
   g_dbus_connection_real_closed: Remote peer vanished with error: Underlying GIOStream returned 0 bytes on an async read (g-io-error-quark, 0). Exiting.
   Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 003: ID 5986:0149 Acer, Inc 
   Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Hewlett-Packard HP G62 Notebook PC
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-031900rc1-generic root=UUID=05c3db73-a1ee-4f45-bc69-bd0599d3613e ro quiet splash vt.handoff=7
  Renderer: Software
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/09/2011
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.48
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 143A
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 60.50
  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.48:bd11/09/2011:svnHewlett-Packard:pnHPG62NotebookPC:pvr0594110000252710001020100:rvnHewlett-Packard:rn143A:rvr60.50:cvnHewlett-Packard:ct10:cvrChassisVersion:
  dmi.product.name: HP G62 Notebook PC
  dmi.product.version: 0594110000252710001020100
  dmi.sys.vendor: Hewlett-Packard
  version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.56-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.3.2-0ubuntu0.1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.2-0ubuntu0.1
  version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1.2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
  xserver.bootTime: Mon Dec 29 09:06:59 2014
  xserver.configfile: default
  xserver.logfile: /var/log/Xorg.0.log
   Output                                  HDMI-0          LVDS-0           VGA-0 
   product id                                                                 684 
   vendor                                                                     LGD
  xserver.version: 2:1.16.0-1ubuntu1.2
  xserver.video_driver: modesetting

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