https://askubuntu.com/questions/606446/power-management-for-wireless-unable-to-turn-off-in-xubunu-15-04-vivid
Check the file /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf if the system uses NetworkManager. It contains wifi.powersave = 3. This configuration file came after 14.04 LTS.
To switch off the WLAN power save do:
Create a new configuration file with
sudo nano /etc/NetworkManager/conf.d/system-wifi-powersave.conf
Put the following code in the file
# File to be placed under /etc/NetworkManager/conf.d
# File name lexically later than 'default…'
[connection]
# Values for wifi.powersave are
# 0 (use default), 1 (ignore/don't touch), 2 (disable) or 3 (enable).
wifi.powersave = 2
Save the file with CTRL+O, leave nano with CTRL+X, reboot with sudo reboot now and check with iwconfig.
Further hints
The name of the new file is important. It needs to be later in the alphabet than default-wifi-powersave-on.
All WLAN connections are affected by this system-wide change.
Each WLAN connection still can have individual power management settings. See the answer from AHAN in this thread.
et là :
paul@paul-TERRA-MOBILE-360-11:~$ iwconfig
wlp2s0 IEEE 802.11 ESSID:"SFR_0A40"
Mode:Managed Frequency:2.462 GHz Access Point: 24:95:04:D3:0A:44
Bit Rate=1 Mb/s Tx-Power=31 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=50/70 Signal level=-60 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:94 Invalid misc:0 Missed beacon:0
🙂
Par contre le bitrate est super lent (ma femme défonce du mob sur son meuporg) . Mais s’améliore en rapprochant la box. Je pense que désactiver le wifi power management permet d'arrêter les déconnexions intempestives. c'est déjà une première étape.
La deuxième serait de pouvoir augmenter mon bitrate
