Re: Brightness on Lenovo Thinkpad W510
Im not sure what exactly the problem is, as i have a T420 and am having a similar issue. A temporary solution for the problem would be installing "xbacklight"
Its obviously not an end all solution, but i have been trying to find out what the problem is for some time and to no avail, and have been using this solution for the time being
xbacklight -set 80
that will set the backlight to 80 pct