Weird minimum brightness of T430 capping issue in point 8.1 of Windows

Hello

I have a weird problem. I bought my T430 with Win 7 in. Now that I've upgraded to Windows 8.1, the brightness of the display will get weak after a certain point.

In Win 7, I could turn down the brightness of my screen at a VERY small point. But currently, with 8.1 Win, although I can turn down the brightness of several points, the brightness of the display would be stuck to, say, 20%.

1. This is the brightness for the 2nd lowest level:

2. now, here, it is at its lowest level. Look, there is still another level to go:

3. Although there is still a level to go (as shown in the image above), if I try to take the brightness to the lowest setting absolute, ABSOLUTELY NOTHING would happen.

This problem occurs in Win 7 Pro. My lowest brightness level was much, much lower in Windows 7 as in 8.1 Pro Win. He started straining my eyes!

Help, please!

Thanks in advance.

Finally! Found the solution.

Updated my BIOS and now it works fine.

Thanks the lenovo support team. You guys have been impressive. Keep up the good work.

Tags: ThinkPad Notebooks

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