How to run modprobe for Wi-Fi at login?

Question

I would like to enable my wifi card automatically at the startup every time. However, the command below requires sudo. I see Hardware Disabled at the wireless connection which blocks the internet access through wireless connection without the sudo command. There is no permanent solution to this problem, since those drivers are buggy so deprecate that feature from this thread. Temporary solution is here such that I run in Lenovo G50-30

sudo modprobe -r ideapad-laptop

which solves the problem until next shut down. The wireless card is disabled in the next startup. The command loads some module to Linux kernel. I do not understand the origin of the bug. The command rfkill list gives

2: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

I cannot use cronjob's @reboot command because it does not run from the cold system as described here.

Unsuccessful modprobe and /etc/init.d/rc.local

One attempt from here. Adding @reboot modprobe -r ideapad-laptop to your crontab would work, but apparently only works when the machine is rebooted not when it comes up cold. So do

sudo echo '@reboot modprobe -r ideapad-laptop' >> /etc/crontab

That will add the line to your cron jobs, but call it at login by adding it in a line to /etc/init.d/rc.local.

How can you enable the modprobe -command at login?

Answer 1

Your question is stated in a rather chaotic way, but this is what I understand:

1. You're talking about enabling your wireless network adapter using a command that requires root privileges (hence run using sudo). The command you're executing actually removes a module (see man modprobe under the -r option).

2. It was probably suggested that you remove the ideapad-laptop module because it is conflicting with another module. That module is disabled, because the defunct ideapad-laptop module has priority over it.

You were probably unable to find the answer you were looking for, because you were searching for the wrong terms. You'll want to disable the ideapad-laptop module in a process called blacklisting.

Simply create a new file under /etc/modprobe.d/ that starts with .conf, e.g., /etc/modprobe.d/disable_deprecated.conf and add blacklist ideapad-laptop to it. This prevents the module from ever loading. You won't have to run the modprobe command anymore.