Comment # 26 on bug 942876 from Takashi Iwai

(In reply to Ginko Bonsai from comment #25)
> Created attachment 645459 [details]
> Script for toggling wifi from command line
> 
> Sorry for the delay, my day job interfered ;-)
> 
> Followed your advice and created the attached script (now in /usr/local/bin)
> and created an xfce keyboard application shortcut (settings -> keyboard ->
> application shortcuts) for XF86WWW (Fn+PrintScreen).
> Now the keys toggle wifi through Networkmanager.
> 
> Do you know if there's a difference in power consumption by the wifi device
> when hard/soft disabled? My main goal was to save battery power by switching
> off wifi when I don't need it.

It pretty much depends on the driver.  I guess iwlwifi does well about the
power control.  You can check via powertop, for example.

> I'm hoping to find time soon to investigate which of the Dell .debs enables
> support for wifi switching on Ubuntu. I've asked on a Dell support forum but
> they're not very responsive.

If you find anything, let me know.  Thanks!