I just checked with powertop and it actually gives the suggestion to put the wireless card in saving mode with the following command :
iwpriv eth1 set_power 5
If i find significant differences in heat i'll let you know
Have you found anything out?
I have been playing with commands trying to figure out what I need use, im assuming:
iwpriv wlan0 set_power 5
But whatever I try I get the message back that set_power is an unknown command. Any ideas?
Well I have found out that it indeed reduces the heat to some degree... Provided you are not doing huge file transfers etc. I think it just sets the timer for when to reduce the power to the wireless card... When doing normal work with some browsing and e-mailing It's no longer uncomfortable to use in my experience.
Regarding the message you got you can simply type 'iwpriv' to get a list of commands you can use on the various interfaces and you can see if stuff changed with 'ifconfig'.
The interfaces have to be enabled to configure them... in my case just typing 'iwpriv' gives me :
lo no private ioctls.
eth0 no private ioctls.
tun0 no private ioctls.
eth1 Available private ioctls :
set_power (8BE0) : set 1 int & get 0
get_power (8BE1) : set 0 & get 80 char
set_mode (8BE2) : set 1 int & get 0
get_mode (8BE3) : set 0 & get 80 char
set_preamble (8BE4) : set 1 int & get 0
get_preamble (8BE5) : set 0 & get 16 char
reset (8BE7) : set 0 int & get 0
monitor (8BE6) : set 2 int & get 0
iwconfig shows :
lo no wireless extensions.
eth0 no wireless extensions.
tun0 no wireless extensions.
eth1 unassociated ESSID:off/any
Mode:Managed Frequency=nan kHz Access Point: Not-Associated
Bit Rate:0 kb/s Tx-Power:16 dBm
Retry limit:15 RTS thr:off Fragment thr:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:351 Missed beacon:0
and after using the commando as i stated before it states :
Power Management timeout:25ms
Please note that these readouts where done with wifi-card on but not actually using the wireless because I was doing some other stuff over fixed line
HTH - Bergje
Ronald - X61s, L7300, 2*2048Mb 5300, 120 Gb SSD, Bluetooth, Intel a/b/g. Windows 8.