Hey Gustavo, you might try to disable the acer_wmi module with 'sudo rmmod acer_wmi' I also have an Acer 5520 and this fixed it for me. I am not sure what other things unloading this module will do, but so far so good....
Hey Gustavo, you might try to disable the acer_wmi module with 'sudo rmmod acer_wmi'
I also have an Acer 5520 and this fixed it for me. I am not sure what other things unloading this module will do, but so far so good....