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jhenriquez

Member

Registered: 2015-01-25

Posts: 3

[SOLVED] Disabling Bluetooth Coexistence on Intel (iwlwifi.conf)

Hello,

I've been experiencing serious skipping and delays with my SB220 bluetooth headset.  After some research I eventually got here - Disabling Bluetooth Coexistence for the driver. I didn't even have a /etc/modprobe.d/iwlwifi.conf file. So I just added one with the following line:

options iwlwifi bt_coex_active=0

After rebooting this is how my iwlwifi info looks like:

filename:       /lib/modules/4.7.2-1-ARCH/kernel/drivers/net/wireless/intel/iwlwifi/iwlwifi.ko.gz
license:        GPL
author:         Copyright(c) 2003- 2015 Intel Corporation <linuxwifi@intel.com>
description:    Intel(R) Wireless WiFi driver for Linux
firmware:       iwlwifi-100-5.ucode
firmware:       iwlwifi-1000-5.ucode
firmware:       iwlwifi-135-6.ucode
firmware:       iwlwifi-105-6.ucode
firmware:       iwlwifi-2030-6.ucode
firmware:       iwlwifi-2000-6.ucode
firmware:       iwlwifi-5150-2.ucode
firmware:       iwlwifi-5000-5.ucode
firmware:       iwlwifi-6000g2b-IWL6000G2B_UCODE_API_MAX.ucode
firmware:       iwlwifi-6000g2a-6.ucode
firmware:       iwlwifi-6050-5.ucode
firmware:       iwlwifi-6000-6.ucode
firmware:       iwlwifi-7265D-21.ucode
firmware:       iwlwifi-7265-17.ucode
firmware:       iwlwifi-3168-21.ucode
firmware:       iwlwifi-3160-17.ucode
firmware:       iwlwifi-7260-17.ucode
firmware:       iwlwifi-8265-21.ucode
firmware:       iwlwifi-8000C--21.ucode
firmware:       iwlwifi-9260-th-a0-lc-a0--21.ucode
firmware:       iwlwifi-9260-th-a0-jf-a0--21.ucode
firmware:       iwlwifi-9000-pu-a0-lc-a0--21.ucode

... A lot of alieases ...

depends:        cfg80211
intree:         Y
vermagic:       4.7.2-1-ARCH SMP preempt mod_unload modversions 
parm:           swcrypto:using crypto in software (default 0 [hardware]) (int)
parm:           11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
parm:           amsdu_size:amsdu size 0:4K 1:8K 2:12K (default 0) (int)
parm:           fw_restart:restart firmware in case of error (default true) (bool)
parm:           antenna_coupling:specify antenna coupling in dB (default: 0 dB) (int)
parm:           nvm_file:NVM file name (charp)
parm:           d0i3_disable:disable d0i3 functionality (default: Y) (bool)
parm:           lar_disable:disable LAR functionality (default: N) (bool)
parm:           uapsd_disable:disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3) (uint)
parm:           bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
parm:           led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)
parm:           power_save:enable WiFi power management (default: disable) (bool)
parm:           power_level:default power save level (range from 1 - 5, default: 1) (int)
parm:           fw_monitor:firmware monitor - to debug FW (default: false - needs lots of memory) (bool)
parm:           d0i3_timeout:Timeout to D0i3 entry when idle (ms) (uint)
parm:           disable_11ac:Disable VHT capabilities (default: false) (bool)

The bt_coex_active parameter continues enable. This appears to me as if the iwlwifi.conf had no effect when loading the module. Is there something I'm missing, another file maybe? Is there something I should do so this file is considered?

Thanks in advance,

Last edited by jhenriquez (2016-11-22 18:25:39)

jhenriquez

Member

Registered: 2015-01-25

Posts: 3

Re: [SOLVED] Disabling Bluetooth Coexistence on Intel (iwlwifi.conf)

UPDATE

It appears I misinterpreted the output of modinfo. It doesn't list the current state of the parameter for the module. The current state of the parameters can be found on: /sys/module/iwlwifi/parameters/bt_coex_active, which now has the value N. So, apparently it dd work.

As for the effects on my Bluetooth problems, I'm not sure if it helped.

This is the source where I learned about confirming values of module parameters.

I supposed this post can be closed now.

jasonwryan

Anarchist

From: .nz

Registered: 2009-05-09

Posts: 30,426

Website

Re: [SOLVED] Disabling Bluetooth Coexistence on Intel (iwlwifi.conf)

Please remember to mark your thread as [Solved] by editing your first post and prepending it to the title.

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