RTL8723BE wireless fix and other realtek

[Gimpy]

This fix is for realtek wireless drivers to stop dropping wireless or not working at all

To determine your model in a terminal type> inxi - n

Models Supported
rtl8188ee
rtl8192c
rtl8192ce
rtl8192de
rtl8192ee
rtl8192se
rtl8723ae
rtl8723be
rtl8821ae

I have the rtl8723be wireless and this fix stopped the wireless drop out

In a terminal type the following commands

1. sudo apt-get install linux-headers-generic build-essential git

2. git clone https://github/com/lwfinger/rtlwifi_new

3. cd rtlwifi_new

4. make

5. sudo make install

6. sudo modprobe rtl8723be
rtl8723be was my wireless ..change rtl8723be to your model

Thats is all there is to it .. this info was updated from info obtained from ubuntu forums

[Gimpy]

If you are still experiencing problems with the realtek you can add or create a file in /etc/modprobe.d

name the file (your realtek device).conf
for example rtl8723be.conf

in the file add> options rtl8723be fwlps=N ips=N

then either restart or
sudo modprobe rtl8723be (substitute your device if different)

[bbaker6212]

Great. I have this same rtl8723be wifi card in my Lenovo G50 notebook. And while it works 99% of the time, I'd say once every day or two the wifi stops working and I have to restart Mint to get it working again. Will try this fix and see if things improve. Btw, how does one reset the wifi adapter without needing to restart the whole OS?

[bbaker6212]

I got an error on the initial command.
dpkg: error processing package i-nex (--configure):
subprocess installed post-installation script returned error exit status 6
E: Sub-process /usr/bin/dpkg returned an error code (1)

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inxi -Fxz 

System: Host: brad-Lenovo-G50-45 Kernel: 3.16.0-38-generic x86_64 (64 bit, gcc: 4.8.2)
Desktop: Cinnamon 2.6.13 Distro: Linux Mint 17.2 Rafaela

[bbaker6212]

The outlined patch build process worked for me. Now, I'll see if my intermittent wifi disconnect is fixed or not.
[edit] removed that un-needed 'i-nex' package. so no more dpkg error.
Question:

* I read in another thread that the rtl8723be.conf file entry of 'options rtl8723be fwlps=0' is the one that turns off power/energy management that could cause a problem. What does your options do... 'options rtl8723be fwlps=N ips=N' ?

[bbaker6212]

I am also running Xubuntu 15.04 on the same machine, in a separate partition and it was also having the same problem, but more frequent disconnects.
This fix/patch procedure completed without errors here as well. I'll post again if the problem is not resolved, else assume it worked.

[JeremyB]

I am not at a computer now but you can find a description of the parameters with

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modinfo -p rtl8723be

I think fwlps is a firmware power save but I don't remember what ips is

[Laurent85]

A more convinient ppa is now available to install new drivers. See https://launchpad.net/~hanipouspilot/+a ... tu/rtlwifi
Installation instructions :

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sudo add-apt-repository ppa:hanipouspilot/rtlwifi
apt update
apt install rtlwifi-new-dkms

Reboot.

[bbaker6212]

I am not at a computer now but you can find a description of the parameters with

Code: Select all

modinfo -p rtl8723be

I think fwlps is a firmware power save but I don't remember what ips is

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}brad@G50-45 ~/dev/ipfs $ modinfo -p rtl8723be
swlps: (bool)
swenc:using hardware crypto (default 0 [hardware])
 (bool)
ips:using no link power save (default 1 is open)
 (bool)
fwlps:using linked fw control power save (default 1 is open)
 (bool)
msi:Set to 1 to use MSI interrupts mode (default 0)
 (bool)
debug:Set debug level (0-5) (default 0) (int)
disable_watchdog:Set to 1 to disable the watchdog (default 0)
 (bool)

[cnop]

Hi,
I use Linux mint 17.3, Kernel 3.19.0-32. Did follow the steps from Gimpy on Thu Sep 03, 2015 12:26 pm / RTL8723BE wireless fix and other realtek all went well till the last command.
attached the message

[JOPETA]

RTL 8723au is not a model supported as per Gimpy’ s list. Device or resource busy maybe means that rtl 8723au mod is already in use. In any case, please open a new topic.

[Pjotr]

@cnop: this should fix your RTL8723AU:
https://sites.google.com/site/easylinux ... 0bda:b720-
(item 4, left column)

For the rest I agree with JOPETA: for future help requests, please start your own threads.

[newbie1010]

Hi, I tried the first command but kept getting this message? can anyone help? i'm a newbie so I don't really know what it means?

[JeremyB]

Try github.com not github/com in the git clone command

[Pjotr]

As JeremyB says. Better yet: don't type the commands. Only use copy/paste.

[newbie1010]

Thanks I realised my silly mistake. I tried it but as soon as I move more than 1 metre away from my wireless router it seems to just drop connection still? I have no idea why?

[JeremyB]

See my answer on askubuntu http://askubuntu.com/a/722904/300665

If ant_sel=1 or ant_sel=2 works post what one works as there is a step to make it persistent

I had thought this issue was just with HP laptops but it seems otherwise.

[newbie1010]

@jeremyb I tried what you recommended but as soon as i leave the room it still disconnects ? I dunno what to do really?

[JeremyB]

Try the commands from outside of the room that the router is in and see if there is any difference

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sudo modprobe -r rtl8723be
sudo modprobe rtl8723be ant_sel=1 fwlps=N

If you still can't see any wireless networks then

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sudo modprobe -r rtl8723be
sudo modprobe rtl8723be ant_sel=2 fwlps=N

I suspect that your wireless card has only one antenna on a card with two antenna connectors

[newbie1010]

I just tried it but it hasn't made a difference ? Is there any other way to fix it?