After installing Ubuntu 12.04 LTS in my laptop HP ProBook 855 G2, I found that my wireless network wasn't working. I noticed many people had the same problem, all of them having the same card RealTek RTL8723be (it shows as b723 with lspci
). I already tried the following suggestion:
- Pull the repository at https://github.com/lwfinger/rtlwifi_new
from a working computer and copy it to a USB stick. -
In the computer to be fixed, load stick and
cd
to folder. Then run:make sudo make install sudo modprobe rtl8723be
-
At this point, the wireless network will be enabled, but it won't
find any APs to connect with. I have tried tweaking the driver
options as suggested in many places:echo "options rtl8723 ips=0 fwlps=0" | sudo tee /etc/modprobe.d/rtl8723be.conf
But this didn't work. Any suggestions? Thanks.
Best Answer
After searching further, the solution for my laptop in particular was to put the option
msi=1
in thertl8723be.conf
file. Just to summarize the whole steps:In the computer to be fixed, load stick and
cd
to folder. Then run:At this point, the wireless network will be enabled, but it won't find any APs to connect with. Adding
msi=1
tortl8723be.conf
fixed this problem:I guess different laptop models need different driver parameters, even though the wireless card is the same.
Note: the driver may break after some software upgrades, in which case just repeat step 2.