My Surface RT tablet seems to be not working since now. When I attempt to wake it up from sleep mode, a black screen just shows and nothing happens. Then I have to restart the Surface every time and login my account again. I find that a solution is to download and install the latest drivers for the display adapter from Windows Update control panel. I have done that but get the following error message:
“Your PC ran into a problem and needs to restart. We’re just collecting some error info, and then we’ll restart for you.
if you’d like to know more, you can search online later for this error: DRIVER_POWER_STATE_FAILURE”
To fix the issues, open Control Panel, click Device Manager > Network Adapters > Marvell AVASTAR Wireless-N Network Controller (SDIO) Properties > Power Management and check “Allow the computer to turn off this device to save power”. Works for me.