Wireless powersave doesn't work (pm-utils)

[ubuntu-tester]

Hello,

I notice a bug about wireless powersave (pm-utils 1.4.1-13ubuntu0.1 on Ubuntu 14.04.1 LTS using kernel 3.13.0-44-generic) :

# PM_FUNCTIONS="/usr/lib/pm-utils/functions" /usr/lib/pm-utils/power.d/wireless true
cat: /sys/class/net/wlan0/device/enabled: No such file or directory

If I replace '/sys/class/net/wlan0/device/enabled' by '/sys/class/net/wlan0/device/enable' in '/usr/lib/pm-utils/power.d/wireless', it seems to work fine :

# PM_FUNCTIONS="/usr/lib/pm-utils/functions" /usr/lib/pm-utils/power.d/wireless true
Turning powersave for wlan0 on...Done.

Is it possible to fix this bug ?

Thanks :)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[John Morris (1pt1nq88tvxvjiijcixknc4iaqh3-na9c-8aho930n7szvk8tyqp2yd0cny5gr)]

I fixed the same problem the same way.

Error in /var/log/pm-powersave.log:
    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.

Fix:
    sed -ie '/\/sys\/class\/net\/$1\/device\/enabled/ s/enabled/enable/' \
        /usr/lib/pm-utils/power.d/wireless

[John Freed (oklp)]

This is related to Bug #1299975

It appears that the filename was changed from "enable" to "enabled" and now back to "enable" again.

So #1299975 needs to be backed out.

[Dirk F (fieldhouse)]

Should be fixed along with bug 1544612. Marking as duplicate...