I have 2 problems on a new pc:

I connected the pc via HDMI to Philips 40PFL6606H the Screen goes black at random for 1-2 sec.

I have installed the newest firmware: V, still the same.

The setting PC-Modus cannot be selected (grayed out)

The other problem, when I switch off/on the pc the TV is not switching on/off like a pc monitor the easy-link is enabled I have an Intel HD Graphic 4000 card & ASUS P8Z77-V DELUXE motherboard.

Please any solution?