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Gray screen problem in Dell Latitude E6540   The computer functions normally   But when I want to watch a movie or a video either on my hard disk or on the internet … the gray screen appears {Note: if i minimize the video box for example in “vlc” the problem does not show  .. but its appear on plein ecran mode when the video fills the computer screen} The problem rarely appears immediately after the dell logo when the computer is turned on   To get rid of the problem I have to close the screen and open it…  and so on every appearance   Here are some steps i’ve taken to try to diagnose the problem:   1 I connected an external monitor once with the HDMI cable and once with the VGA cable when the video started after a short time .. The problem appeared in the computer screen only  and the external screen is good .. the video shows normal   2 i entered the safe mode and the problem still exists   3 I try to format the  computer with Windows 7/10 and the problem still exists   4 I updated the drivers of the Intel and AMD graphics card and the problem still exists even without drivers   This is a video and illustrations   https://www.youtube.com/watch?v=sH_GAil-…   I apologize for the language errors

Hi, This link may be of relevance to your problem. You can also perform a video stress test using Dell SupportAssist (scroll down to find the link on the page), to check if there is a hardware problem.