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October 17th, 2021 19:00
S2721DGF, display flashes then black screen
I got my S2721DGF yesterday and all was groovy. Today however I was using my PC and the screen goes black. The white power light stays on. But no display. The PC still recognizes the S2721DGF. I tried the same cables on another monitor to rule those out. The S2721DGF will flash the desktop or book logo for a split second then off again but the power light stays on. When it does show the desktop for longer than a second. The right side of the screen will be super dark as if the back light is going out. Tried a new power cable, display cable, HDMI cable. All work fine. It's just the S2721DGF.
Anyone have any advice?
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DELL-Chris M
Community Manager
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56.9K Posts
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November 17th, 2021 08:00
A DELL-Cares agent setup service. But there were holes in the troubleshooting. Did they ask you to do the following?
* Turn the PC off
* Turn both monitors off
* Disconnect both monitors cabling from the PC
* Disconnect all monitor cabling from S2721DGF
* Press and hold in the S2721DGF power button for 8 seconds
* Reconnect the power cable to the S2721DGF
* Connect only the DP to DP cable to the S2721DGF and PC (a single monitor setup)
* Turn the S2721DGF on, then the PC