04-25-2010 07:01 AM
Solved! Go to Solution.
04-26-2010 05:43 AM
Same problem here with T500 2055, Windows 7 pro, current drivers. I think it's connected with sleep/resume. If i restart the computer it works until notebook goes to sleep. After resume, brigtness controls do not work. Every other FN combination is working. Brigntess control also not working from power manager.
I'm not sure, but maybe the problem rised when I installed the latest BIOS.
04-26-2010 07:33 AM
try this driver new Power manager driver, i had the same problem before with my T400 on win 7 ultimate.
But now it is fixed with this driver, so have a try and see if that works.
04-26-2010 09:38 AM
Thanks, this driver seems to solve the problem. I forgot to check my old version, but system update did not offered this update. Maybe i had this driver, but it needed a reinstall somehow.