Arch Linux

SimonJ

Member

From: Spain

Registered: 2021-05-11

Posts: 327

Website

[SOLVED] iwlwifi.conf

I have had terrible WiFi speeds and work has been hectic so I bought a USB WiFi adaptor which solved the problem.

On my days off I thought I would look into the systemd issues and reading the forums I thought I would take a look at Artix Linux.

I booted it and installed on a spare drive and to my surprise the intel WiFi is faster than the USB WiFi.

I booted back to arch and found the above file contains

options iwlwifi 11n_disable=8
options iwlwifi bt_coex_active=0
options iwlwifi 11n_disable=1 swcrypto=1
options iwlwifi power_save=1
options iwlwifi uapsd_disable=0                                    

I commented them all, rebooted and the internet speed is 10 times what it was before.

So, which if these options do I need and also which is the one(s) causing the speed degradation?

Thank you for any insight and/or pointers on where to read the options.

Last edited by SimonJ (2024-06-20 21:39:55)

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V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,223

Re: [SOLVED] iwlwifi.conf

You will have created that file and in a general sense you "need" none of those.

There might have occasionally been bugs in the driver that motivated you to create this, but if things are working properly now, look at what happens without any of these options present.

Last edited by V1del (2024-06-20 21:38:17)

SimonJ

Member

From: Spain

Registered: 2021-05-11

Posts: 327

Website

Re: [SOLVED] iwlwifi.conf

Great thank you, I have another day tomorrow to test so will keep as it is now.

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seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,946

Re: [SOLVED] iwlwifi.conf

Idk what you "need", but "11n_disable=1" is gonna limit you to 802.11ag, ie. 6–54 Mbit, i'd try w/o any of the 11n_disable parameters, not sure whether you need swcrypto but it  won't slow down the wifi (just cause more cpu load)

power_save and  uapsd_disable are power saving related, disabling them might help if the NIC has trouble waking/powering up but will probably slightly reduce the on-battery time.
bt_coex_active is only relevant on 2.4GHz networks

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