2

I am running Ubuntu 16.04 on Fujitsu UH552. Every thing has been working fine until I connected Bluetooth wireless headphone. My machine has qualcomm atheros ar9462 (wifi + bluetooth) module.

Problem: If I use both Bluetooth headphone and WiFi at the same time they interfere, WiFi slows down and audio on headphone has glitches. Any suggestion how to solve this issue?

Note:Upon googling I found this solution

sudo tee /etc/modprobe.d/iwlwifi-opt.conf <<< "options iwlwifi bt_coex_active=N"

but this is not working for me.

  • 1
    That command is for Intel adapters only. – Pilot6 Mar 31 '17 at 14:51
3

Since yours is an Atheros wireless device and not an Intel, it is not surprising that a driver parameter for an Intel is not working. Let's try a better option:

sudo -i
rm /etc/modprobe.d/iwlwifi-opt.conf
echo "options ath9k btcoex_enable=1"  >  /etc/modprobe.d/ath9k.conf
exit

Reboot and let us hear your report.

  • Works well for me so far. Reboot wasn't necessary, I did modprobe -r ath9k; sleep 5; modproble ath9k But it's a fair suggestion. – Sergiy Kolodyazhnyy Jul 19 at 16:00

protected by Sergiy Kolodyazhnyy Jul 19 at 16:01

Thank you for your interest in this question. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).

Would you like to answer one of these unanswered questions instead?

Not the answer you're looking for? Browse other questions tagged or ask your own question.