Issue is: the exotic flower of the computer for the system, this phenomenon can occur under win10/Ubuntu18.04 random (after opening the video sites like tencent video/bilibili/youku will happen),
Black screen left in normal operation, display shows no signal input, the keyboard can't operation (that is, through the keyboard typing reboot command) must be long press power restart,
After the resumption of normal use, but black screen problem still exists, recently when doing the PPT, automatic black screen, restart the black screen again after a few minutes (it is not ruled out may be the GPU temperatures cause),
Down the machine, to the video card and memory clear grey but has no effect, specific configuration is as follows:
The CPU is i7-6700
Graphics for AMD R7430
Memory to 16 gb (probably Kingston ddr3, this is not clear)