M900 Tiny Display port problem

Hi,

I have M900 Tiny and Lenovo 2324 24" Diplasy using Displayport adapter and HDMI cable. The monitor blacks out for two or three seconds and comes back while watching Movie (Netflix, other online streaming) and sometimes blackout and if I do not reconnect cable, screen stays black.

1. Update video driver manually, found instruction here, still same

2. changed HDMI cable, not displayport (female to HDMI) adaptor, which is brand new, still same

3. uninstalled Intel video card drive, restarted and Windows installed it again, still same.

Same happens from both outputs, I was searching solutions for three days, tried different ways, nothing changed.

Any ideas? I bought DisplayPort Adaptor from Maplin.

P.S. Also, when I connect M900 to my TV with Microsoft Wireless Display Adaptor, after 10 minutes, it disconnects.