1. Emergency measures: Query Rfkill list all, you can see Ideapad_laptop Wireless is physically shut down, but Bo Master's notebook does not have this key, so execute the sudo modprobe-r ideapad_laptop instructions, you can write this instruction /etc/rc.local, the contents are as follows
#!/bin/sh-e
#
# rc.local
#
# This script was executed at the end of each multiuser runlevel.
# Make sure the script would "exit 0" on success or any other
# Value On error.
#
# in order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
#开机启动WiFi
echo "Your user password" |sudo modprobe-r ideapad_laptop
Exit 0
2. But Bo Master's notebook after a few minutes to break the WiFi, for some do not break the download is really uncomfortable, so finally, Bo Master spent money to buy an external wireless network card, pay attention to even buy a wireless card, 1 steps are still to be carried out, the specific principle is not clear, but should be the default problem of the motherboard. 3. The blogger is still very knowledgeable, and I hope you can point out the mistakes.
Realtek Wireless card for Ubuntu WiFi not supported processing method
