Wireless very slow and/or unstable after Kernel update to 3.13

joanmanel · 2014-02-26 20:02:23

I have a "fresh" install from 2 weeks ago. It was installed with Kernel 3.12. I have a rtl8192cu, it was dreadful, so as recommended I installed dkms-8192cu and everything was perfect.

After the upgrade to Kernel 3.13, both with the standard driver and with dkms-8192cu my connection is very slow or unstable.

As an example, in theory I have 20m, with 3.12 I was around 14m. With 3.13 I am around 1m or less, I can barely update my system because:

error: failed retrieving file 's-nail-14.6.1-1-x86_64.pkg.tar.xz' from archlinux.polymorf.fr : Operation too slow. Less than 1 bytes/sec transferred the last 10 seconds

Wired everything goes fine.

I cannot downgrade to 3.12 because I need the new radeonsi improvements done with 3.13. I have this computer mostly to play Dota2.

Rexilion · 2014-02-27 19:03:54

Seems like a regression. You could bisect. OR try v3.14-rc4.

joanmanel · 2014-02-27 19:26:34

What do you mean by biasect?

I doubt 3.14 fixes it. The kernel firmware for this chipset seems to be broken.

I have written a message in AUR dkms-8192cu, hopefully they will fix it.

Rexilion · 2014-02-28 08:11:12

I misread that the in kernel driver of v3.12 was working properly. THat way you can figure out what exact change broke performance by testing different development kernels.

There is an in-kernel driver in staging called rtl8192u. It received a lot of changes in v3.12. Maybe try v3.11 and see if that works?

joanmanel · 2014-02-28 09:41:23

Rexilion wrote:

I misread that the in kernel driver of v3.12 was working properly. THat way you can figure out what exact change broke performance by testing different development kernels.
There is an in-kernel driver in staging called rtl8192u. It received a lot of changes in v3.12. Maybe try v3.11 and see if that works?

it didnt work in kernel 3.12, but with https://aur.archlinux.org/packages/dkms-8192cu/ it worked perfect

in kernel 3.13 it is horrible both witht he stock driver or with the AUR package.

Arch Linux

#1 2014-02-26 20:02:23

Wireless very slow and/or unstable after Kernel update to 3.13

#2 2014-02-27 19:03:54

Re: Wireless very slow and/or unstable after Kernel update to 3.13

#3 2014-02-27 19:26:34

Re: Wireless very slow and/or unstable after Kernel update to 3.13

#4 2014-02-28 08:11:12

Re: Wireless very slow and/or unstable after Kernel update to 3.13

#5 2014-02-28 09:41:23

Re: Wireless very slow and/or unstable after Kernel update to 3.13

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