On Mon, December 4, 2017 1:40 am, Alice Wonder wrote:
> On 12/03/2017 11:10 PM, Phil Perry wrote:
>> On 04/12/17 00:38, John R Pierce wrote:
>>> On 12/3/2017 4:22 PM, Gregory P. Ennis wrote:
>>>> I have not been able to get it to work Centos 7.4 machine. Some of
>>>> the
>>>> centos user posts had indicated the nux repsitory had a Centos 7
>>>> kmod-
>>>> wl, but it is not present when I tried to search or or install it at
>>>> this time.
>>>
>>> this looks potentionally helpful
>>>
>>> http://elrepo.org/tiki/wl-kmod
>>>
>>> it appears those are closed source drivers with funky licenses, so
>>> they can't just be redistributed without assumption of liability.
>>>
>>>
>>
>> Correct, elrepo isn't able to freely redistribute the drivers due
>> Broadcom's licensing, but does provide instructions and a SRPM (minus
>> tarball) for you to build yourself.
Every time I encounter big enough trouble about some chipset to have to learn a bit about its internals, I usually learn about its engineering flaw. BCM43xx has the following one: the chip internally is 32 bit, though it sits on 64 bit bus. (Take that with a grain of salt, it's been long time since I looked into that crap).
Once I discover the flaw, I add particular hardware in my black list and do my best to not buy anything containing it. Broadcom as a whole is not in my black list, they have great hardware, but their BCM43XX is, even if they corrected their design flaws since.
I would replace that if possible (Intel would be great candidate), or use USB adapters others suggest.
Just my $0.02
Valeri
>
> That's what I have to do, and it can sometimes be a PITA because a
> kernel update can break it and you have to build it again.
>
> With major updates (like 7.3 to 7.4) you sometimes have to download a
> new nosrc rpm.
>
>>
>> Alternatively, for $8 you can purchase an adaptor that is natively
>> supported and will work out of the box:
>>
>> https://www.amazon.com/Edimax-EW-7811Un-150Mbps-Raspberry-Supports/dp/B003MTTJOY/ref=sr_1_1?ie=UTF8&qid=1512370979&sr=8-1&keywords=edimax+n150
>>
>>
>> https://www.newegg.com/Product/Product.aspx?Item=N82E16833315091&cm_re=edimax_n150-_-33-315-091-_-Product
>>
>>
>> The above adaptor is based on the Realtek RTL8188CUS chipset and uses
>> the rtl8192cu kernel driver.
>
> At some point I will be replacing mine, but with a low-profile PCI-E
> card. I've had bad luck with USB wifi adapters, sometimes for example
> they lose connection when a microwave is turned on and when I was
> visiting my parents, had one that lost connection whenever the AC unit
> kicked on.
>
> My best wifi experience in Linux has been with my T series thinkpad, it
> uses some kind of Intel wireless chipset that is in the kernel.
>
> I'm going to be looking for a low profile Intel PCI-E card, but for now
> my broadcom PCI-E actually works quite well - with the exception of
> needing to rebuild every now and then (last time was 7.3 to 7.4 update)
>
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++++++++++++++++++++++++++++++++++++++++
Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
++++++++++++++++++++++++++++++++++++++++
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