Today i've installed Ubuntu 14.04.2 LTS on amd64 Lenovo G710 laptop. Unfortunately, this is not my PC and i have to fix this issue with not working Wifi. In network-manager tray tool i see "Qualcomm Network QCA8172 -- disconnected" and no WiFi networks avaiilable. I connect my android device to wifi network and share internet via USB cable (usb0)..
iwconfig does not list any other interfaces except loopback and ethernet.
System Settings > Additional Drivers set to "Using Broadcom 802.11 Linux STA Wireless from bcmwl-kernel-source".
What i've tried
apt-get install --reinstall bcmwl-kernel-source.
Doesn't help, as make during this installation fails due to code errors. All i get is sucessfull exit and automatically generated error report to ubuntu..
I've tried solutions like in Qualcomm Atheros AR8172 Driver fix? (lenovo g500s) or http://ubuntuforums.org/showthread.php?t=2103062 or How do I get an Atheros AR8162 working?
They all did not help as i face sirious compile errors with "undefined" macros/symbols or redefinitions, plus many of source download links are dead in this examples. I tried to fix the code but it is impossible to make it.
None of Installing Broadcom Wireless Drivers helped. I see no changes after following any of solutions with rebooting..
I've tried full system reinstall, switched to "OtherOS" optimized options in EFI BIOS, Enabled Legacy Support.
UPDATE How do I get proprietary Broadcom drivers to work after installation?, including installing
firmware-b43-installer b43-fwcutter did not help.
sudo apt-get install linux-firmware-nonfree - no effect
Please, point me to any solutions possible...!
lspci -vnn | grep Network output:
07:00.0 Network controller : Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
UPDATE Output of
rfkill list all:
0: ideapad_wlan: Wireless LAN Soft blocked: no Hard blocked: no 1: ideapad_bluetooth: Bluetooth Soft blocked: no Hard blocked: no 2: ideapad_3g: Wireless WAN Soft blocked: no Hard blocked: no