*** This bug is a duplicate of bug 1544612 ***
https://bugs.launchpad.net/bugs/1544612
** This bug is no longer a duplicate of bug 1414110
Wireless powersave doesn't work (pm-utils)
** This bug has been marked a duplicate of bug 1544612
Missing fix for 1299975 claimed to be in pm-utils (1.4.1-13ubuntu0.1)
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https://bugs.launchpad.net/bugs/1443249
Title:
After kernel-3.13.0-41, wireless script checks wrong sys file.
Status in pm-utils package in Ubuntu:
New
Bug description:
[TEST CASE]
* on a laptop machine with a ac adapter connect & wireless interface run:
1. ac adapter disconnect
2. $ tail /var/log/pm-powersave.log & $ iwconfig
[Actual Result]
* wireless power management does not "ON"
$ tail /var/log/pm-powersave.log
--->---> snip --->---> snip --->---> snip --->---> snip --->--->
Running hook /usr/lib/pm-utils/power.d/wireless true:
cat: /sys/class/net/wlan0/device/enabled: No such file or directory
/usr/lib/pm-utils/power.d/wireless true: success.
--->---> snip --->---> snip --->---> snip --->---> snip --->--->
$ iwconfig
wlan0 IEEE 802.11bgn ESSID:"xxxxxxxxx"
--->---> snip --->---> snip --->---> snip --->---> snip --->--->
Power Management:off
--->---> snip --->---> snip --->---> snip --->---> snip --->--->
[Expected Result]
$ tail /var/log/pm-powersave.log
--->---> snip --->---> snip --->---> snip --->---> snip --->--->
Running hook /etc/pm/power.d/wireless true:
Turning powersave for wlan0 on...Done.
/etc/pm/power.d/wireless true: success.
--->---> snip --->---> snip --->---> snip --->---> snip --->--->
$ iwconfig
wlan0 IEEE 802.11bgn ESSID:"xxxxxxxxx"
--->---> snip --->---> snip --->---> snip --->---> snip --->--->
Power Management:on
--->---> snip --->---> snip --->---> snip --->---> snip --->--->
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.2 LTS
Release: 14.04
Codename: trusty
$ uname -a
Linux xxxxxxx 3.13.0-49-generic #81-Ubuntu SMP Tue Mar 24 19:29:48 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux
$ cat /etc/modprobe.d/ath9k_powersave.conf
options ath9k ps_enable=1
$ apt-cache policy pm-utils
pm-utils:
インストールされているバージョン: 1.4.1-13ubuntu0.1
候補: 1.4.1-13ubuntu0.1
バージョンテーブル:
*** 1.4.1-13ubuntu0.1 0
500 http://www.ftp.ne.jp/Linux/packages/ubuntu/archive/
trusty-updates/main amd64 Packages
100 /var/lib/dpkg/status
1.4.1-13 0
500 http://www.ftp.ne.jp/Linux/packages/ubuntu/archive/ trusty/main
amd64 Packages
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