I have a 14s-dq1504na which is currently only a couple of months old.
A number of times whilst using the laptop the screen goes completely "black".
You can hear that the laptop itself is still running but whatever input you try to use on the keyboard you cannot get the screen to reappear.
The only solution is to activate a power reset via the on/off button which will of course mean that any data not saved will be lost and some running programs will be closed incorrectly creating their own problems.
Once power reset takes place the screen "reappears" until the next time.
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