katsu, thank you for reporting this and helping make Ubuntu better.
Could you please test the latest upstream kernel available from the very
top line at the top of the page (the release names are irrelevant for
testing, and please do not test the daily folder) following
https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional
upstream developers to examine the issue.
If the test did not allow you to test to the issue (ex. you couldn't boot into
the OS) please make a comment in your report about this, and continue to test
the next most recent kernel version until you can test to the issue. Once
you've tested the upstream kernel, please comment on which kernel version
specifically you tested. If this bug is fixed in the mainline kernel, please
add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER
where VERSION-NUMBER is the version number of the kernel you tested exactly
shown as:
kernel-fixed-upstream-3.19-rc1
This can be done by clicking on the yellow circle with a black pencil
icon next to the word Tags located at the bottom of the bug description.
If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER
Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.
** Tags added: latest-bios-62cn97ww regression-update
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1404612
Title:
Power management of the wireless LAN does not work.
Status in linux package in Ubuntu:
Incomplete
Bug description:
wireless script(/usr/lib/pm-utils/power.d/wireless) fixed by bug:1299975
https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1299975
/usr/lib/pm-utils/power.d/wireless
--->---> snip --->---> snip --->---> snip --->---> snip --->--->
23 [ "$(cat /sys/class/net/$1/device/enabled)" = "1" ] || return 1
--->---> snip --->---> snip --->---> snip --->---> snip --->--->
Power management works fine.
There is no problem to kernel-3.13.0-40.
but kernel-3.13.0-41 & -43 changed to /sys/class/net/wlan0/device/enable.
( enabled -> enable )
Power management does not work.
$ tail /var/log/pm-powersave.log
--->---> snip --->---> snip --->---> snip --->---> snip --->--->
Running hook /usr/lib/pm-utils/power.d/wireless false:
cat: /sys/class/net/wlan0/device/enabled: No such file or directory
/usr/lib/pm-utils/power.d/wireless false: success.
--->---> snip --->---> snip --->---> snip --->---> snip --->--->
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-43-generic 3.13.0-43.72
ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
Uname: Linux 3.13.0-43-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: yokoyama 2136 F.... pulseaudio
CurrentDesktop: Unity
Date: Sun Dec 21 15:46:21 2014
HibernationDevice: RESUME=UUID=6ff533bf-2108-48e8-a717-5551b42f6ee7
InstallationDate: Installed on 2014-04-18 (247 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: LENOVO 26897LJ
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-43-generic.efi.signed
root=UUID=4ba0cc0c-00ce-4685-ba4c-cc3ea1a9b01a ro clocksource=hpet quiet splash
vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-43-generic N/A
linux-backports-modules-3.13.0-43-generic N/A
linux-firmware 1.127.10
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/12/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 62CN97WW
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Lenovo G580
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo G580
dmi.modalias:
dmi:bvnLENOVO:bvr62CN97WW:bd07/12/2013:svnLENOVO:pn26897LJ:pvrLenovoG580:rvnLENOVO:rnLenovoG580:rvrNotDefined:cvnLENOVO:ct10:cvrLenovoG580:
dmi.product.name: 26897LJ
dmi.product.version: Lenovo G580
dmi.sys.vendor: LENOVO
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