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jemadux

Member

From: Thessaloniki City / Greece

Registered: 2010-07-17

Posts: 66

wifi not working properly

I have the  rtl8723be wifi card and i use the linux-lts  and

 cat  /etc/modprobe.d/rtl8723be.conf 
options rtl8723be ant_sel=2 fwlps=0 

was working very good ..

one solution that I tried is to downgrade linux-lts  and linux-lts-headers

and ingored the pkgs on /etc/pacman.conf 

should i be on downgrade for long or  sometime in the future should i upgrade ?

olive

Member

From: Belgium

Registered: 2008-06-22

Posts: 1,490

Re: wifi not working properly

You should be a little more precise about your problem.

1) What is exactly your problem? What do you mean by not working properly?
2) Have you tried to remove the options in modprobe.conf? Why do you use them?
3) Does your wifi work properly with an older lts kernel? Have you tried with the normal (non lts) kernel?

jemadux

Member

From: Thessaloniki City / Greece

Registered: 2010-07-17

Posts: 66

Re: wifi not working properly

You should be a little more precise about your problem.

1) What is exactly your problem? What do you mean by not working properly?
2) Have you tried to remove the options in modprobe.conf? Why do you use them?
3) Does your wifi work properly with an older lts kernel? Have you tried with the normal (non lts) kernel?

1) the problem  doest show any network but only when i go close to router
2) yes i tried
3) yes i am using old kernel at moment . the non-lts have same issues

Last edited by jemadux (2018-05-10 16:21:31)

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 19,785

Re: wifi not working properly

Sounds superficially like you are getting the antenna select wrong.  You are forcing it in the options, and (I think you meant) it only works when you get very close to the router.

Last edited by ewaller (2018-05-10 17:05:29)

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loqs

Member

Registered: 2014-03-06

Posts: 17,364

Re: wifi not working properly

https://bbs.archlinux.org/viewtopic.php?id=236439?

juancri

Member

Registered: 2015-06-08

Posts: 4

Re: wifi not working properly

I have the same problem. I solved it before installing linux-lts, but today, it doesn't work right.

k2600

Member

Registered: 2018-05-10

Posts: 1

Re: wifi not working properly

I was about to post about this as well. Larry finger mentioned something about Realtek messing up the ant_sel code for the driver in 4.16. Maybe this code was backported to 4.14.40.

Workaround for now is to downgrade to 4.14.39 (should be in your cache). Other than that, we'll have to wait for 4.17 or compile/dkms from Larry's rtlwifi_new github.

EDIT: I can confirm the code was backported. See the changelog here

EDIT2: As posted by lo1 here, the issue is fixed by upgrading to 4.16.8 and setting ant_sel to 1. This thread should be marked as solved.

Last edited by k2600 (2018-05-11 21:33:48)