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[Marco Trevisan (Treviño) <mail@xxxxxxxxx>]

Same combination here, the problems is still there however... It seems
somewhat caused by pulseaudio I think.

In fact, if once lightdm starts I go to tty1 → sudo service lighdm stop
→ sudo killall pulseaudio →  echo OFF| sudo tee
/sys/kernel/debug/vgaswitcheroo/switch #switch to integrated card

Evertyhing will work since then...

Otherwise I'm getting similar errors, still on 13.10:

[  489.177732] hda-intel 0000:01:00.1: Disabling via VGA-switcheroo
[  489.297129] hda-intel 0000:01:00.1: Cannot lock devices!
[  489.297139] radeon: switched off
[  489.300356] [drm] Disabling audio support
[  489.319552] radeon 0000:01:00.0: fence driver on ring 5 use gpu addr 0x000000000015e418 and cpu addr 0xffffc90009df0418
[  489.973886] ACPI: \_SB_.PCI0: ACPI_NOTIFY_BUS_CHECK event: unsupported
[  489.973903] _handle_hotplug_event_root: Bus check notify on \_SB_.PCI0
[  620.618515] systemd-udevd[11062]: NAME="autopilot-uinput" ignored, kernel device nodes can not be renamed; please fix it in /lib/udev/rules.d/61-autopilot-uinput.rules:2
[  625.865633] type=1400 audit(1376040689.481:56): apparmor="STATUS" operation="profile_replace" parent=11322 profile="unconfined" name="/usr/lib/telepathy/mission-control-5" pid=11324 comm="apparmor_parser"
[  625.866080] type=1400 audit(1376040689.481:57): apparmor="STATUS" operation="profile_replace" parent=11322 profile="unconfined" name="/usr/lib/telepathy/telepathy-*" pid=11324 comm="apparmor_parser"
[  625.937081] type=1400 audit(1376040689.553:58): apparmor="STATUS" operation="profile_replace" parent=11322 profile="unconfined" name="pxgsettings" pid=11324 comm="apparmor_parser"
[  625.937705] type=1400 audit(1376040689.553:59): apparmor="STATUS" operation="profile_replace" parent=11322 profile="unconfined" name="sanitized_helper" pid=11324 comm="apparmor_parser"
[  625.937903] type=1400 audit(1376040689.553:60): apparmor="STATUS" operation="profile_load" parent=11322 profile="unconfined" name="/usr/lib/telepathy/telepathy-ofono" pid=11324 comm="apparmor_parser"
[  666.436776] compiz[3802]: segfault at 7fa0020c64b0 ip 00007f9ffe786c0d sp 00007fffdb31ce00 error 4 in libc-2.17.so[7f9ffe707000+1bc000]
[  678.992375] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting
[  678.992453] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing CD0C (len 62, WS 0, PS 0) @ 0xCD28
[  683.996303] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting
[  683.996377] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing CD0C (len 62, WS 0, PS 0) @ 0xCD28
[  683.996453] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing C3DC (len 871, WS 0, PS 0) @ 0xC439
[  689.000275] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting
[  689.000349] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing CD0C (len 62, WS 0, PS 0) @ 0xCD28
[  694.004285] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting
[  694.004363] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing CD0C (len 62, WS 0, PS 0) @ 0xCD28
[  699.008330] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting
[  699.008414] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing CD0C (len 62, WS 0, PS 0) @ 0xCD28
[  699.514458] init: tty1 main process (2460) killed by QUIT signal
[  699.514489] init: tty1 main process ended, respawning
[  704.012405] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting
[  704.012492] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing CD0C (len 62, WS 0, PS 0) @ 0xCD28
[  709.016515] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting
[  709.016596] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing CD0C (len 62, WS 0, PS 0) @ 0xCD28

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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1162526

Title:
  vgaswitcheroo - Can't switch to dedicated GPU

Status in “linux” package in Ubuntu:
  Invalid

Bug description:
  I have a dual-GPU notebook, with a Intel Ironlake integrated GPU and a
  AMD 5650m dedicated GPU. Due to the fact that the privative AMD
  drivers doesn't work with this particular combination of GPU (muxed
  system) I am stuck with open source drivers and vga_switcheroo to
  choose between them.

  However since the upgrade to 13.04, I can't switch to the dedicated
  GPU as I could in 12.10. When I activate the AMD card and logout of
  the active session (in order to kill X, as needed by vgaswitcheroo), I
  can't get to lightdm and I get this message: "vga_switcheroo: client 1
  refused switch" and "vga_switcheroo: client 101 refused switch". After
  this, the only option is to drop to TTY and restart the system.

  Also, possible related, when shutting down the notebook I get a lot of
  "atombios stuck executing... for more than 5 secs" errors.

  Both GPUs are working fine in Windows and, as said, used to work fine
  in Ubuntu 12.10.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-15-generic 3.8.0-15.25 [modified: boot/vmlinuz-3.8.0-15-generic]
  ProcVersionSignature: Ubuntu 3.8.0-15.25-generic 3.8.4
  Uname: Linux 3.8.0-15-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.9.2-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  nicolas    3895 F.... pulseaudio
   /dev/snd/controlC0:  nicolas    3895 F.... pulseaudio
   /dev/snd/pcmC0D0p:   nicolas    3895 F...m pulseaudio
  Date: Sun Mar 31 13:30:38 2013
  HibernationDevice: RESUME=UUID=d55a83c8-f045-4c6f-ad18-f2fa84bcfd73
  InstallationDate: Installed on 2013-03-30 (0 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130328)
  MachineType: Hewlett-Packard HP ENVY 14 Notebook PC
  MarkForUpload: True
  ProcFB:
   0 inteldrmfb
   1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-15-generic root=UUID=67db7fed-d0f3-4c33-9a58-eb3860cfc7be ro quiet splash acpi_osi=Linux vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-15-generic N/A
   linux-backports-modules-3.8.0-15-generic  N/A
   linux-firmware                            1.104
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/01/2011
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.26
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 1436
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 59.24
  dmi.chassis.asset.tag: CNU03538DZ
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnHewlett-Packard:bvrF.26:bd12/01/2011:svnHewlett-Packard:pnHPENVY14NotebookPC:pvr0492100000241910000620000:rvnHewlett-Packard:rn1436:rvr59.24:cvnHewlett-Packard:ct10:cvrChassisVersion:
  dmi.product.name: HP ENVY 14 Notebook PC
  dmi.product.version: 0492100000241910000620000
  dmi.sys.vendor: Hewlett-Packard

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