T400 Screen flickers, when I connect power adapater in my home

T400 Screen flickers, when I connect power adapater in my home. When I connect the same power adapter in my office. It works fine. Can any one please suggest me, what's the issue with the T400 laptop. If it's a issue with my power supply in my home , how all other computers are working.

Hi Snowfall,
Have you resolved your flickering issue? It looks like I have the same on my Ideapad Y550P. Screen flickers occasionally when I work connected to the power adapter at home. And what is more concerning is that the brightness control also stops functioning sometimes.
In your case how has the situation evolved? Has your laptop been repaired or you just live with it as is or has the issue deteriorated into something worse? Just want to get some arguments in my discussions with the SL2 support who cannot reproduce the problem in their office...
Any extra informaton is much appreciated.
Regards, Alexey

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