Public bug reported:
In 14.04, there is a bug in /usr/lib/pm-utils/power.d/wireless script at
line 23. It should "enabled" at the end of path
/sys/class/net/$1/device/enable.
I always get an ENOENT error in /var/log/pm-powersave.log when that hook
runs, inspite of active wlan0.
Running hook /usr/lib/pm-utils/power.d/wireless false:
cat: /sys/class/net/wlan0/device/enable: No such file or directory
/usr/lib/pm-utils/power.d/wireless false: success.
This bug prevents Wi-Fi power saving feature from being enabled when a
laptop is running on battery power!
$ dpkg -s pm-utils | grep Version
Version: 1.4.1-13
$ uname -a
Linux lol 3.13.0-29-generic #53-Ubuntu SMP Wed Jun 4 21:02:19 UTC 2014 i686
i686 i686 GNU/Linux
$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04 LTS"
Installation media: xubuntu-14.04-desktop-i386.iso
** Affects: pm-utils (Ubuntu)
Importance: Undecided
Status: New
** Summary changed:
- /usr/lib/pm-utils/power.d/wireless:23 . ENOENT /class/net/$1/device/enable
+ /usr/lib/pm-utils/power.d/wireless:23: /sys/class/net/wlan0/device/enable: No
such file or directory
** Description changed:
In 14.04, there is a bug in /usr/lib/pm-utils/power.d/wireless script at
line 23. It should "enabled" at the end of path
/sys/class/net/$1/device/enable.
I always get an ENOENT error in /var/log/pm-powersave.log when that hook
runs, inspite of active wlan0.
Running hook /usr/lib/pm-utils/power.d/wireless false:
cat: /sys/class/net/wlan0/device/enable: No such file or directory
/usr/lib/pm-utils/power.d/wireless false: success.
+ This bug prevents Wi-Fi power saving feature from being enabled when a
+ laptop is running on battery power!
- This bug prevents Wi-Fi power saving feature from being enabled when a laptop
is running on battery power!
+ $ dpkg -s pm-utils | grep Version
+ Version: 1.4.1-13
+
+ $ uname -a
+ Linux lol 3.13.0-29-generic #53-Ubuntu SMP Wed Jun 4 21:02:19 UTC 2014 i686
i686 i686 GNU/Linux
+
+ $ cat /etc/lsb-release
+ DISTRIB_ID=Ubuntu
+ DISTRIB_RELEASE=14.04
+ DISTRIB_CODENAME=trusty
+ DISTRIB_DESCRIPTION="Ubuntu 14.04 LTS"
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https://bugs.launchpad.net/bugs/1327957
Title:
/usr/lib/pm-utils/power.d/wireless:23:
/sys/class/net/wlan0/device/enable: No such file or directory
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