On 09.02.2017 21:02, David A. De Graaf wrote:
On 02/08/17 16:50, poma wrote:
> On 07.02.2017 21:54, David A. De Graaf wrote:
>> The r8712u driver from the staging area has stopped working in Fedora
>> 25.
>>
>> The r8712u driver works just fine in Fedora 24 and it seems to be
>> substantially unchanged.
>>
>
>
> You can try the following two options:
>
> - Disable Pre-association / Scanning random MAC address;
>
>
> OR
>
> - Switch to one of the modern version of the driver,
> r92su is easier to set up because it uses the same firmware as r8712u;
>
Thank you, poma. Your answer is spot-on.
Your first suggestion attempts to push me into the swamp of
understanding the NetworkManager. As a senior member of this august
brotherhood, I do not have enough days left to undertake this
challenge. I'm afraid I cannot and will not attempt to make sense of
the "logic" represented there.
Your second suggestion - build and use r92su instead of r8712u -
works perfectly. I measured bandwidth of only 28.4 Mbit/sec compared
with your ~82 Mbit/sec, but I'll leave that curiosity for another day.
This raises a number of ancillary questions:
1 - How did you discover the existence of this newer r92su driver, and
where to find it?
2 - Are there others, hidden from mere mortals, for other devices?
3 - Was Fedora 25 knowingly released with broken drivers when better
ones are available for those privileged to be aware of them?
4 - Why, exactly, has the r8712u driver become broken? It has worked
perfectly through F24.
5 - Was any of this announced? Will it be?
poma, thank you again for your helpful information. I enjoy reading
your comments. They're always helpful, although sometimes so concise
as to be incomprehensible. This one was clear and complete.
No hay problema seƱor.
These days it seems that the entire Internet is at a party at
https://github.com,
howsoever I guess you can ask the Fedora custodians for the Fedora part.
Here are a few references about Realtek RTL8712 USB device support:
- Realtek 802.11n drivers
http://linuxwireless.org/en/users/Drivers/rtl819x
https://wireless.wiki.kernel.org/en/users/drivers/rtl819x
- "staging: refresh TODO for rtl8712"
https://git.kernel.org/cgit/linux/kernel/git/gregkh/staging.git/commit/dr...
- "Re: r92su: status and will it be merged anytime soon?"
https://marc.info/?l=linux-wireless&m=138358275410975
- Jes Sorensen _at_
redhat.com talk about possible support for Realtek RTL8712 USB device
by RTL8XXXu USB mac80211 Wireless LAN Driver
https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1193475.html
"For the rtl8712 device, rtl8192su?, then potentially that could be added to
rtl8xxxu as well, but it's not a top priority on my list right now."
More on the topic you can inquire at:
http://vger.kernel.org/vger-lists.html#linux-wireless
BTW, do you need directions on how to manage r92su.ko with the multitude of kernels?