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Message #29199
[Bug 1247967] Re: nvidia optimus chipset disabled when running on battery, even in discrete mode
Any suggestion on the next steps?
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https://bugs.launchpad.net/bugs/1247967
Title:
nvidia optimus chipset disabled when running on battery, even in
discrete mode
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
It appears that under 3.11.0-13, the Nvidia Optimus GPU is disabled
when running on battery even if the chipset is set to discrete mode in
the BIOS.
When running without AC power under the 3.11 kernel, lspci -v gives the following:
http://paste.ubuntu.com/6360607/
With AC power under 3.11, the same command gives:
http://paste.ubuntu.com/6360613/
If the system is booted into the 3.11 kernel with AC power connected,
it can be removed and the GPU continues to function normally. I have
not tested suspend and resume under the 3.11 kernel (with or without
AC power).
This same configuration worked properly under Raring (13.04). Booting
with the 3.8 kernel and the same nvidia module version used in the
above 3.11 kernel tests results in the previously experienced
(correct, working) behavior.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-3.11.0-13-generic 3.11.0-13.20
ProcVersionSignature: Ubuntu 3.8.0-32.47-generic 3.8.13.10
Uname: Linux 3.8.0-32-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/dsp', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/pcmC1D7p', '/dev/snd/pcmC1D8p', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC29', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Date: Mon Nov 4 12:31:48 2013
HibernationDevice: RESUME=UUID=1fbfa69c-fb52-4aee-ad35-9c523aa14974
InstallationDate: Installed on 2009-12-21 (1414 days ago)
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
MachineType: LENOVO 2436CTO
MarkForUpload: True
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-32-generic root=/dev/mapper/ssd-root ro vga=792 splash nox2apic crashkernel=384M-2G:64M,2G-:128M quiet splash
RelatedPackageVersions:
linux-restricted-modules-3.8.0-32-generic N/A
linux-backports-modules-3.8.0-32-generic N/A
linux-firmware 1.116
SourcePackage: linux
UpgradeStatus: Upgraded to saucy on 2013-11-04 (0 days ago)
dmi.bios.date: 08/12/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: G5ET94WW (2.54 )
dmi.board.asset.tag: Not Available
dmi.board.name: 2436CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrG5ET94WW(2.54):bd08/12/2013:svnLENOVO:pn2436CTO:pvrThinkPadW530:rvnLENOVO:rn2436CTO:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2436CTO
dmi.product.version: ThinkPad W530
dmi.sys.vendor: LENOVO
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