Acer screen k272hulbmiidp gray

Hi I'm looking for some feedback on what could be the cause of the following question on my k272hulvmiidp. When I have the monitor connected to the windows or my MacBook Pro laptop by display port, the screen will become completely grayscale except the video playing on it. Happened whenever I have play a video on youtube in 1080 p and have the video works is not in full screen. Also, this would happen when I play 1080 p inside VLC in windowed mode. The rest on the desktop windows come in levels of gray and the color video. The strange thing is that this happens in the Mac OS as well as windows 7. It must be something with the monitor, but I have no idea what setting might be causing it. The MacBook Pro is running graphic iris intel and nvidia gtx 760 mobile running laptop. Devices probably have enough energy to drive the video monitor, but I am at a loss to why the screen goes gray and video remains in color through poster port. Any help would be appreciated.

Thank you. That's what was causing problems on the screen. All together now.

Tags: Acer

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