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After the system powers off, my monitor (Dell 3011 2560x1600) continues to display the contents of the video buffer for a LONG time. Right now the PC has been powered off and the display cable disconnected for about 16 minutes (no exaggeration) and the monitor is still displaying the shutdown screen. I've pulled out the DisplayPort cable (see photo) so its definitely the monitor's buffer, not the PC or VGA card.

Every few minutes the location of the speckled part changes between a couple of places on the screen, probably related to the monitor's video ram buffer changing.

enter image description here enter image description here enter image description here I've never seen this on any previous monitor. Any ideas what's up and if I should seek an RMA? Does it hint at any likely future problems?

Has anyone else got experience of a monitor doing this?

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  • There is definitely something wrong here - before yo RMA it, have you tried replacing the cable?
    – davidgo
    Commented Feb 20, 2018 at 16:02
  • See 1st photo - the cable is not plugged in. This is the monitors video buffer.
    – Stilez
    Commented Feb 20, 2018 at 20:39
  • Ah, sorry - that did not show clearly as a cable (I thought it was a black area of the screen) on my cellphone.
    – davidgo
    Commented Feb 20, 2018 at 21:18
  • this is cool. And strange.
    – Journeyman Geek ♦
    Commented Feb 24, 2018 at 5:19

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