T510i screen suddenly darkens & increases the gamma

From time to time, the screen suddenly fades, and the gamma increases.

This has nothing to do with the brightness settings, since they remain the same (and indeed, increase the brightness still works, but the brightness (maximum) overal remains lowered).

I think that this only happens when you run out of battery, so it might be a power issue.

I have this problem since the beginning (about three months).

But this week, the battery also does not. Maybe there's a fault in the power supply?

Someone has encountered this problem before?

Thanks for any help!

Mark

Try this?
http://forums.Lenovo.com/T5/T400-T500-and-newer-T-series/T410-screen-brightness-dims-washes-out-on-b...

Tags: ThinkPad Notebooks

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