Macbook pro w/Debian, 2.4 Ghz wireless only

Kernels & Hardware, configuring network, installing services

Macbook pro w/Debian, 2.4 Ghz wireless only

Postby Senlis » 2017-03-03 06:15

I just install Debian on my late 2013 Macbook Pro. Super easy btw, props to the Debian team.

The only issue I have had is with my wireless card. I installed firmware-b43-installer to get wireless working, but now it only detects 2.4 Ghz networks.

03:00.0 Network controller [0280]: Broadcom Corporation BCM4331 802.11a/b/g/n [14e4:4331] (rev 02)
Subsystem: Broadcom Corporation BCM4331 802.11a/b/g/n [14e4:4331]
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at a0600000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: bcma-pci-bridge

According to: http://linuxwireless.org/en/users/Drive ... _v266.html, my card is not even supported.
However, according to https://help.ubuntu.com/community/WifiD ... er/bcm43xx, maybe I should install the proprietary driver, but I checked their supported devices page https://wireless.wiki.kernel.org/en/use ... ed_devices and saw this:
PCI-ID Supported? Chip ID Modes PHY version Alternative
14e4:4331 yes (3.2-rc3+) BCM4331 a/b/g/n HT (r1) wl

If I list any B43 packages installed, I get this:
b43-fwcutter/stable,now 1:019-2 amd64 [installed,automatic]
firmware-b43-installer/stable,now 1:019-2 all [installed]

So, based on this information, should I switch to different drivers? Should I have two B43 packages? I'm a little bit confused.
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Re: Macbook pro w/Debian, 2.4 Ghz wireless only

Postby Head_on_a_Stick » 2017-03-03 07:00

“Controlling complexity is the essence of computer programming."Brian Kernighan

Please read before posting How to report a problem
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Re: Macbook pro w/Debian, 2.4 Ghz wireless only

Postby Senlis » 2017-03-04 17:54

I interpret this reply that I should install the proprietary drivers, so that is what I am going to do.

However, is this command
# modprobe -r b44 b43 b43legacy ssb brcmsmac bcma

enough to blacklist these modules:

b43-fwcutter/stable,now 1:019-2 amd64 [installed,automatic]
firmware-b43-installer/stable,now 1:019-2 all [installed]

or should I remove them myself first?
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Re: Macbook pro w/Debian, 2.4 Ghz wireless only

Postby stevepusser » 2017-03-04 18:49

Isn't the 2.4 GHz limitation already a known limitation of the kernel driver anyway? This is from memory--I leave it to you to do the actual web search to prove me right or wrong. :P
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Re: Macbook pro w/Debian, 2.4 Ghz wireless only

Postby Senlis » 2017-03-09 06:57

I did the research for the B43 kernel drivers and indeed, for my wifi card, it is limited to only 2.4 Ghz.
https://wireless.wiki.kernel.org/en/use ... own_issues

I'll try the wl driver and see if that changes. I don't see anything on that page indicating that it is limited to only 2.4 Ghz
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Re: Macbook pro w/Debian, 2.4 Ghz wireless only

Postby Senlis » 2017-03-09 07:13

The wl driver worked, thank you.
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