I am using HP 520 and facing the same problem. I tried setting the itnerface
manually up by sudo ifconfig wlan0 up. This turned wifi ON and the wifi switch
turned blue as it usually does! but still network manager was showing "wifi
disabled by hardware switch". I tried wifi radar (available in package manager)
and I was able to see available wifi networks in range. I selected one and got
connected. It shows that wifi drivers are installed and working properly but
the wifi switch is not turing wifi up! I tried to turn wifi off by pressing the
switch and it turned off!
so there is some bug within the network-manager application and the wifi
hardware switch!
I also checked from "rfkill list" when I press the wifi switch once, it
shows me
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: yes
1: hp-wifi: Wireless LAN
Soft blocked: no
Hard blocked: yes
When I press the switch again, it show following:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: yes
1: hp-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
Please let me know if any more information is required on it!
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https://bugs.launchpad.net/bugs/771758
Title:
acer-wmi prevents wifi (bcmwl/brcm80211) from working
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