HP Envy won't wake up from sleep mode

[lel_h]

[I posted this question on a different board but didn't get any replies, possibly because it was on the wrong board.  I'm reposting it here, as this might be a more appropriate place for this question.]

Okay, I am fully aware that this is a problem that has vexed many other users.  I have spent many hours over the last two months trying to follow the advice of people here, but like many others, nothing is working.

I bought my HP Envy x360 about 8 months ago.  From the very outset, I have had problems with the computer going to sleep after a period of inactivity, and then I can't do anything to wake it up.  Shaking the attached wireless mouse, pressing or using the touchpad or the touchscreen, and hitting every key on the keyboard doesn't work.  Ctrl-alt-delete does nothing.  The only thing I can do it hold down the power button and force it to shut down.

I have verified that the keyboard driver software is updated.  

I have gone to the "choose what the power buttons do" in the control panel and experimented with different settings.

I have changed the power mode/power settings.

I have gone to the Device Manager and checked the keyboard settings.  Indeed, for one of the keyboards listed (there are 3, which I don't understand since I've only ever used the built-in keyboard), I have confirmed that the "allow device to wake up" button is clicked.

I have stayed up to date with all Windows 10 updates.

I have downloaded and installed all recommended HP updates.  I have not installed all the optional updates.

I have updated the BIOS (but that was to try to solve a non-stop fan issue - which I will ask about in another thread).

Despite all these efforts, this still has not solved the not-waking-up problem.  This is rather frustrating.  I will acknowledge that I am not computer savvy at all, but I have done what I can to find solutions on this forum and elsewhere.

Any help?

[Lil_Boy_Blue]

Hi
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.

Disable Fast Start-Up.

[DarrinRich]

Mine was doing the same thing. What worked for me was removing all the display drivers then restarting the pc.

In the windows search bar ( lower left corner ) type DEVICE MANAGER. Should display in the results. Select it.

The device manager window should open. Scroll and look for "Display Adapters" Select it to open up the drop-down menu.

Right click on each one and select uninstall. After both are uninstalled restart the pc. It will automatically reinstall the correct display drivers again. 

Hope that helps.