I have turned off power management for my wireless. I did that in /etc/pm/power.d/wireless.

When I try to connect to a network, the power management turns back on. So the connection fails.

I try:

sudo iwconfig wlan0 power off

The power management is then off, but when I connect it is turned back on.

I added a service as detailed here, it is now initially off. When I try to connect, the power management turns on again.

Output of lshw -C network:

   description: Wireless interface
   product: Wireless 7260
   vendor: Intel Corporation
   physical id: 0
   bus info: pci@0000:02:00.0
   logical name: wlan0
   version: 6b
   serial: <redacted>
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
   configuration: broadcast=yes driver=iwlwifi driverversion=3.19.0-15-generic firmware= latency=0 link=no multicast=yes wireless=IEEE 802.11abgn
   resources: irq:43 memory:f0400000-f0401fff
*-network DISABLED
   description: Ethernet interface
   physical id: 1
   logical name: virbr0-nic
   serial: <redacted>
   size: 10Mbit/s
   capabilities: ethernet physical
   configuration: autonegotiation=off broadcast=yes driver=tun driverversion=1.6 duplex=full link=no multicast=yes port=twisted pair speed=10Mbit/s

What is happening here? Can I try anything else?

  • What is the driver in question? lshw -C network Some drivers allow manipulating power management. – chili555 May 1 '15 at 11:51
  • @chili555 it worked before so I don't think that is the case. But the question now has the output of lshw -C network. – Thijs Wouters May 1 '15 at 12:01
  • I'd guess that power management daemon isn't working with 15.04 or pm-utils isn't working somehow. As a workaround, you can add sudo iwconfig wlan0 power off as Exec= line into .desktop in your ~/.config/autostart, to do it on every login – Sergiy Kolodyazhnyy May 1 '15 at 15:42

Hooks in /etc/pm/ are ignored in Ubuntu 15.04. Instead you have to create systemd services and enable them.

Although first try adding

sleep 10
iwconfig wlan1 power off
exit 0

to your /etc/rc.local file. This should turn of power management at boot and might help with the connection. To permanently disable the power management look here.

More info about hooks in /etc/pm not working anymore here. To create systemd services have a look at ArchWiki.

Hope this helps.

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  • I tried it, it did not work. Now the power management is initially off. – Thijs Wouters May 1 '15 at 11:42
  • For a robust solution see here – spinxz Jun 19 '15 at 14:05

This had nothing to do with Ubuntu.

My ISP, which also handles my wifi, blocked it because I did not pay in time.

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