** Tags added: bios-outdated-r2087h4
--
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/1027522
Title:
1002:6760 Power consumption higher after resume, probably
vgaswitcheroo/radeon related
Status in The Linux Kernel:
Confirmed
Status in “linux” package in Ubuntu:
Triaged
Bug description:
I noticed that the power consumption, as reported in
/proc/acpi/battery/BAT1/state
gets higher when I resume my laptop from suspend to RAM. I strongly
suspect that this is related to a bug in vgaswitcheroo or the radeon
driver, since the power used after resume is consistent with the power
used when the discrete video card is not off.
Before resume I made sure the discrete card was off by using
sudo bash -c "echo OFF > /sys/kernel/debug/vgaswitcheroo/switch"
At resume, with high power consumption, the state is reported as
expected:
sudo cat /sys/kernel/debug/vgaswitcheroo/switch
0:IGD:+:Pwr:0000:00:02.0
1:DIS: :Off:0000:01:00.0
Still, if I run:
sudo bash -c "echo ON > /sys/kernel/debug/vgaswitcheroo/switch"
sudo bash -c "echo OFF > /sys/kernel/debug/vgaswitcheroo/switch"
Now the power consumption goes down to the expected level.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image (not installed)
ProcVersionSignature: Ubuntu 3.2.0-26.41-generic 3.2.19
Uname: Linux 3.2.0-26-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu5
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC275 Analog [ALC275 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: alex 2005 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xc9400000 irq 51'
Mixer name : 'Intel CougarPoint HDMI'
Components : 'HDA:10ec0275,104d5000,00100005
HDA:80862805,104d5000,00100000'
Controls : 26
Simple ctrls : 10
Date: Sun Jul 22 01:23:17 2012
HibernationDevice: RESUME=UUID=6b1034dd-b958-4939-88b4-829282357ed6
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110930)
MachineType: Sony Corporation VPCSB2C5E
ProcFB:
0 inteldrmfb
1 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-26-generic
root=UUID=d4bbd7c4-dc64-42f6-a165-073e9b828c86 ro pcie_aspm=force
i915.i915_enable_rc6=1
RelatedPackageVersions:
linux-restricted-modules-3.2.0-26-generic N/A
linux-backports-modules-3.2.0-26-generic N/A
linux-firmware 1.79
SourcePackage: linux
StagingDrivers: rts_pstor mei
UpgradeStatus: Upgraded to precise on 2012-04-27 (85 days ago)
dmi.bios.date: 04/25/2011
dmi.bios.vendor: INSYDE
dmi.bios.version: R1031H4
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnINSYDE:bvrR1031H4:bd04/25/2011:svnSonyCorporation:pnVPCSB2C5E:pvrC609LHCC:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VPCSB2C5E
dmi.product.version: C609LHCC
dmi.sys.vendor: Sony Corporation
To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1027522/+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
