You are not logged in.

#1 2016-07-16 22:37:21

redcollective
Member
From: The Wilds
Registered: 2015-09-29
Posts: 111

SOLVED: Broadcom WIFI - constantly up and down, should I give up?

Hi folks,

I'm struggling with a Broadcom 4331 Wireless controller on an old laptop. I realise this hardware is badly supported but I wanted it to work.

I'm using ceni to manage my wifi because I'm a curmudgeonly old man and I get a warped sense of pride from doing things differently. : )

After hours of googling and fiddling I'm using the broadcom-sta-dkms from jessie backports but the connection is still really unreliable - up and down more or less constantly. In desperation I've disabled wifi power management in laptop-mode tools in case that helped but to no avail. I've tweaked stuff all over and probably forgotten pretty much everything I've tried so goodness what state this  machine is in.

I think in the end I resorted to adding 'wl' to /etc/modules even though I believe I shouldn't have to do that if broadcom-sta-dkms has installed correctly.

I'm ready to give up, defeated. Any last suggestions? What's this 'blacklist' sorcery I keep reading about?

I'm clueless about the kernel stuff.

Should I try a wifi dongle via USB? Can anyone recommend one for jessie that works out of the box?

Red

Last edited by redcollective (2016-07-18 21:58:01)


Knowledge Ferret

Offline

#2 2016-07-16 22:58:55

damo
....moderator....
Registered: 2015-08-20
Posts: 5,547

Re: SOLVED: Broadcom WIFI - constantly up and down, should I give up?

redcollective wrote:

....
Should I try a wifi dongle via USB? Can anyone recommend one for jessie that works out of the box?
....

I used to find Asus wireless adapters worked well OOTB with Squeeze/Waldorf installs, when I couldn't get Broadcom b43 working.

PS Can you pick up an old laptop, and use the NIC card out of it?


Be Excellent to Each Other...

FORUM RULES and posting guidelines «» Help page for forum post formatting
Artwork on DeviantArt  «» BunsenLabs on DeviantArt

Offline

#3 2016-07-16 23:30:05

Head_on_a_Stick
Member
From: London
Registered: 2015-09-29
Posts: 8,759
Website

Re: SOLVED: Broadcom WIFI - constantly up and down, should I give up?

redcollective wrote:

Broadcom 4331
[...]
I'm using the broadcom-sta-dkms from jessie backports

I think you should be using the wl driver.

See https://wiki.debian.org/wl

EDIT: Or perhaps not: http://forums.debian.net/viewtopic.php?f=7&t=121248

I would recommend Atheros-based wi-fi dongles, they require no non-free firmware and are well supported under Linux.

Last edited by Head_on_a_Stick (2016-07-16 23:35:17)


“Et ignotas animum dimittit in artes.” — Ovid, Metamorphoses, VIII., 18.

Forum Rules   •   How to report a problem   •   Software that rocks

Offline

#4 2016-07-17 06:54:34

ohnonot
...again
Registered: 2015-09-29
Posts: 4,283
Website

Re: SOLVED: Broadcom WIFI - constantly up and down, should I give up?

damo wrote:

PS Can you pick up an old laptop, and use the NIC card out of it?

if this works for you, best solution.
(although, i once had an old amilo that was, how do you call it, vendor locked-in, it wouldn't accept the new network card on a bios level)

============================================================

"blacklisting" means that the kernel thinks that it knows waht module to load for a certain hardware, but we know it's wrong, so we blacklist that module. nothing magic about it. on my (archlinux) suystem this happens in /etc/modprobe.d/modprobe.conf.
example entry:

blacklist nouveau

============================================================

if you want to try again with the broadcom 4331, unfortunately there's no other way than to start from zero, providing info and so on...

my go-to is archwiki, this page is a good start.
according to this list wl would seem to be the right driver.

to see what your current situation is, you should provide output of

lspci -k
lsmod

and maybe all the other stuff from here.

Offline

#5 2016-07-18 21:19:08

redcollective
Member
From: The Wilds
Registered: 2015-09-29
Posts: 111

Re: SOLVED: Broadcom WIFI - constantly up and down, should I give up?

Thanks for the advice.

A day and a bit now  and no signs of instability.

Can't say for sure which of all of the things I tried helped but can confirm I'm using wl with the 4331.

That's a lesson for me to keep better notes.

Network controller: Broadcom Corporation BCM4331 802.11a/b/g/n (rev 02)
Subsystem: Apple Inc. AirPort Extreme
Kernel driver in use: wl

- Red


Knowledge Ferret

Offline

#6 2016-07-18 22:44:56

Horizon_Brave
Operating System: Linux-Nettrix
Registered: 2015-10-18
Posts: 1,473

Re: SOLVED: Broadcom WIFI - constantly up and down, should I give up?

Darn... I was sort of curious to see which solution was it that worked... where you using wl before and was it still giving you a spotty connection, or was switching to wl one of the many solutions you tried?


"I have not failed, I have found 10,000 ways that will not work" -Edison

Offline

#7 2016-07-19 19:29:01

redcollective
Member
From: The Wilds
Registered: 2015-09-29
Posts: 111

Re: SOLVED: Broadcom WIFI - constantly up and down, should I give up?

Sorry HB,

I'm gonna have to put my hands up and confess I tried so many things in succession that I don't know what really fixed it. My mistake!

In no sure order: I purged network manager and fell back on my old favourite Ceni for network management.

I purged broadcom-sta-dkms and then installed same from jessie backports

I attempted to ensure wireless wasn't powered down ever in /etc/laptop-mode/conf.d/wireless-power.conf
(and somewhere else - I don't remember and can't fin anything in history)

a bit of rebooting here and there. modprobed this and that. etc etc

I dunno, it was late, I was desperate, I didn't take good notes big_smile

Red


Knowledge Ferret

Offline

#8 2016-07-19 20:53:27

Horizon_Brave
Operating System: Linux-Nettrix
Registered: 2015-10-18
Posts: 1,473

Re: SOLVED: Broadcom WIFI - constantly up and down, should I give up?

I purged broadcom-sta-dkms and then installed same from jessie backports

Hmm so where did you originally get the broadcom-sta-dkms, if you didn't get it from backports originally?


"I have not failed, I have found 10,000 ways that will not work" -Edison

Offline

#9 2016-07-19 20:56:06

redcollective
Member
From: The Wilds
Registered: 2015-09-29
Posts: 111

Re: SOLVED: Broadcom WIFI - constantly up and down, should I give up?

¯\_(ツ)_/¯

- probably some time after I installed?

Last edited by redcollective (2016-07-19 20:58:33)


Knowledge Ferret

Offline

#10 2016-07-19 20:57:35

Horizon_Brave
Operating System: Linux-Nettrix
Registered: 2015-10-18
Posts: 1,473

Re: SOLVED: Broadcom WIFI - constantly up and down, should I give up?

redcollective wrote:

¯\_(ツ)_/¯


lol...you know you literally made me chuckle with that response...  big_smile

I don't know a lot about it...it seems pretty obscure, does Ceni actually manage your network connections actively? Does it just do wifi based connections or does it handle wired as well?

Last edited by Horizon_Brave (2016-07-19 21:00:30)


"I have not failed, I have found 10,000 ways that will not work" -Edison

Offline

#11 2016-07-19 20:59:22

redcollective
Member
From: The Wilds
Registered: 2015-09-29
Posts: 111

Re: SOLVED: Broadcom WIFI - constantly up and down, should I give up?

Yeh I really shouldn't be let near anything important.

Red


Knowledge Ferret

Offline

Board footer

Powered by FluxBB