Screen flashes on Dell XPS series and some other Intel platforms

Initial Investigation : we found that the low power Intel CPU might put the memory controller into conditional self-refresh mode during S0, and cause the XHCI DMA memory retrieval latency. Attaching an external mouse immediately cure the problem. 

Solution: You could try one of the following approaches:

1) Attaching an external USB mouse to keep USB host controller in "alert" mode. When this is done, the host controller schedules USB traffic in a agile manner.

2) Starting from driver 2.0.31559.0 or above, a high-resolution timer is added to keep integrated memory controller out of self-refresh mode.

3) Invoke HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\intelppm, and change "Start" registry value from 3 to 4, and then reboot. This disables the Intel C state management. You need a reboot to let registry setting take effect.