I am using vaio vpceh3aen laptop. Some keys on my keyboard are not working at all. Like left arrow,right alter,m,n,v,x,z,,,/ I have 2 OS . other is linux. same keys are not working there also. keys stopped working at time when i was using VLC media and the key combination (Alt + left arrow key).
please give me solution. Don't tell me to get a new USB keyboard.
It happened this time due to complete battery discharge and the laptop went offline..
Anyway, what I did to make it work was go into BIOS and select the recovery thing then control+alt+del, this fixed the issue for me this time, otherwise try playing around the BIOS screens, as I am not sure what exactly the action I took there which fixed it.
Sony, if your reading this, there is some low level bug with what ever is keeping track of numlock etc, PLEASE FIX!!