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 -- 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/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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1162526/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
