I think it can be considered as a reference. Some user use “Clean Boot” found the culprit. ![]() Some third application/service on the computer could also cause this issue. In addition, I found a similar case for your reference. Did you install Windows 10 64 bit system? If so, download and install the last version of graphics drivers from the following link as a test. We suggest installing Windows 10 64 bit system. ![]() It seems that DELL only released Windows 10 64 bit compatible driversįor Latitude E7270. Usually this will be caused by the graphics driver not properly supporting sleep modes and therefore disabling the ability to detect a connected display when the computer goes to sleep.
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