* suggest 1: Fix it in the kernel side in "enable" or "enabled".
/sys/class/net/wlan0/device/enable
or
/sys/class/net/wlan0/device/enabled <- being ideal
* suggest 2: Revert by lp #1299975
[ "$(cat /sys/class/net/$1/device/enabled)" = "1" ] || return 1
to
[ "$(cat /sys/class/net/$1/device/enable)" = "1" ] || return 1
* suggest 3: In the same way as a lp #1299975, modify pm-utils package
again.
diff -Nur pm-utils-1.4.1.orig/pm/power.d/wireless
pm-utils-1.4.1/pm/power.d/wireless
--- pm-utils-1.4.1.orig/pm/power.d/wireless 2014-12-25 10:20:01.000000000
+0900
+++ pm-utils-1.4.1/pm/power.d/wireless 2014-12-25 10:23:12.727673449 +0900
@@ -19,8 +19,12 @@
[ -L "/sys/class/net/$1/device/driver" ] || return 1
# Skip if not a wireless card.
[ -d "/sys/class/net/$1/wireless" ] || return 1
+ # temporary patch. lp:1404612
+ [ -e "/sys/class/net/$1/device/enabled" ] && enabled="enabled"
+ [ -e "/sys/class/net/$1/device/enable" ] && enabled="enable"
# Also don't do anything if the device is disabled
- [ "$(cat /sys/class/net/$1/device/enabled)" = "1" ] || return 1
+ [ "$(cat /sys/class/net/$1/device/$enabled)" = "1" ] || return 1
+ unset enabled
driver="$(readlink "/sys/class/net/$1/device/driver")"
driver=${driver##*/}
case $driver in
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https://bugs.launchpad.net/bugs/1404612
Title:
Power management of the wireless LAN does not work.
Status in linux package in Ubuntu:
Confirmed
Bug description:
wireless script(/usr/lib/pm-utils/power.d/wireless) fixed by bug:1299975
https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1299975
/usr/lib/pm-utils/power.d/wireless
--->---> snip --->---> snip --->---> snip --->---> snip --->--->
23 [ "$(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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