Screen won't turn back on after sleep mode

[AndreCelo]

Hi,

My laptop HP elitebook 850 G5 is running windows pro X64 (1809).

All Hp and Microsoft updates applied.

Screen won't turn back on after sleep mode.

- Fan is running fast and loud

- keyboard is reacting

but have to force the shutdown keeping down the power button for more 10 sec.

Any help is welcome.

[Lil_Boy_Blue]

First:- Turn off the computer, press and hold the PWR button for 4 seconds.

Then - Leave only keyboard and mouse connected, disconnect all externally connected
devices such as Docking Station, USB storage devices, displays, and printers.
Unplug the AC adapter from the computer.

Next - Press and Hold the Power button for 15 seconds to Hard Reset.
Rinse and Repeat

AND/OR - Power on your PC, press Esc (repeatedly), then F2 at the prompt.
Choose System Tests (Fast Test does a 4 minute hardware check).

AND/OR - Windows Logo key + Ctrl + Shift + B
(This key sequence actually restarts you graphics drive(W10 only).)

AND/OR - If you’re using multiple displays, try projecting video to a different monitor.
Press the Windows Logo key + P, select a display, and then press Enter.