11-16-2017 11:58 AM
Hi, early i used T440s and T450s models without any issues.
Now i need smaller laptop and try to use X260, seems same but smaller, but after couple weeks found that my eyes in a fire, and always headache after one-two hour using this laptop.
Somy asks in google response me make flickering tests with phone camera or pencil, and i found T440s-T450s has not this problem, but X260 has backlite flickering, and some reviews reports too low 220Hz frequency with note this problem, I even made test for all my old laptols, including old cheapest acer netbooks, all without flickering, only X260 has problem.
Are there any solution for this problem? I guess bios firmware control PWM to backlite, may be some bios upgrade exist? Or only way to replace laptop back to T450s?