I have Debian installed on my laptop (T440s). I've installed the iwlwifi drivers but Wifi does not work.
ifconfig -a only shows
lo. What should I do? Also, how do I adjust brightness?
Are you sure that you installed the driver? In Linux, drivers are treated as kernel modules and need to be loaded as such. After downloading the driver via you distribution's package manager, it must be loaded with the
First, download the driver:
sudo apt-get install iwlwifi-firmware
Then unload the conflicting modules
modprobe -r b44 b43 b43legacy ssb brcmsmac bcma
or, if the have been unloaded, and the iwlwifi module has been detetcted automatically:
modprobe -r iwlwifi
Next, load the iwlwifi module:
That should be it!
To manage wireless interface you can use iwconfig
Check here for the list of commands, related to WiFi