kernel-packages team mailing list archive

[Pierre Réveillon <pierre@xxxxxxxxxxxxxxxx>]

Be aware that adding things that you don't understand can have unwanted
results... For exemple, "power_save=0" prevents your wifi card to enter
power saving mode, and could reduce your battery autonomy...

In my case (on Linux Mint 17.3), simply adding the "bt_coex_active=0"
parameter in /etc/modprobe.d/iwlwifi.conf fixed the problem. See
http://superuser.com/questions/924559/wifi-connection-troubles-solved-
why-does-my-fix-work for more information on this parameter.

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https://bugs.launchpad.net/bugs/219057

Title:
  Bluetooth does not coexist with WiFi

Status in bluez package in Ubuntu:
  Confirmed

Bug description:
  On my system bluetooth and wifi are unusable together. I have a built-
  in CSR-based bluetooth module in my laptop, and an Atheros wifi. Wifi
  transfers slow to a halt whenever there is BT traffic.

  For example, if I play a music file from another machine through the
  network using a BT headset, only the first few seconds of the file
  will play until the player runs out of buffered data. No further data
  is downloaded. Web pages also do not download, and I even lose
  connection to AP from time to time.

  At the same time, it looks like AFH is trying to work. If I monitor
  the value returned by 'hcitool afh', it changes. But this seems to
  have little effect on connection quality.

  Is this a problem with my hardware, or the AFH implementation? Is
  there a way to force bluetooth to not use the channels in use by WiFi?

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