Display Not Waking From Sleep Mode or Power Save

[Lorob1]

Hello:

Issue:

My  display will no longer wake up from sleep mode or from screen shutdown when saving power.  My product number is 3N385AV

Symptoms

The keyboard, touchpad and power button will not bring the display back on.  The keyboard lights up, but the screen stays black.  This requires a hard shutdown and reboot whenever the computer goes into sleep or screen goes off to save power.  When it does a reboot a tiny error message scrolls in the upper left hand corner that is too fast and the font too tiny to read.  

Troubleshooting Efforts:    

- Confirmed latest bios is installed;

- Set Bios To default settings per:
https://h30434.www3.hp.com/t5/Notebook-Boot-and-Lockup/Blank-screen-after-sleep-mode/td-p/7194889

-Ran HP Assistant and confirmed all software, bios, drivers and Win Update are up to date;  (see discussion in prior links) 

- Attempted to adjust device manager settings for keyboard to make sure "wake up" option is enabled, but setting (now under "Resources") is checked "use automatic settings" and greyed out preventing any changes (see discussion in prior links).

- ran sfc /scannow  

- tried key combination (windows key + Ctrl + space + B)

Followed similar discussion in, following links but without success.  

https://h30434.www3.hp.com/t5/Notebook-Video-Display-and-Touch/Black-Screen-After-Sleep-in-Windows-1...

https://h30434.www3.hp.com/t5/Notebook-Boot-and-Lockup/Blank-screen-after-sleep-mode/td-p/7194889

Is there some new knowledge or advice for troubleshooting/repair?

Thank you,

[nmilanow]

Hey man, I had a similar problem and fortunately managed to get it fixed (not thanks to HP support).

My display suddenly stopped working after I left the computer idle for lunch.

While looking into the issue I noticed that some HP update scheduler was set for that exact date and time, which sounded way too big a coincidence.

Then the very next day NVIDIA (my GPU brand) releases a driver update. Another big coincidence.

A second display via HDMI worked so I finally managed to solve by messing around with drivers and Windows and even the BIOS. Here's what I did:

I updated all the drivers I could, GeForce, HP, Intel, everything. That didn't work, so I tried the BIOS which I had left for last. That didn't do it, then I tried returning Windows to factory settings. That didn't work either.

Then I noticed the driver update today in the GeForce site, so I installed that, then updated all other drivers again and finally BIOS, and it worked.

Hope any of that helps.

Cheers.

[Lorob1]

Nmilanow, thanks for suggestion to try component manufacturer's (Intel) website.  They had a more recent driver which I used to replace HP's OEM version, and this has worked for last few days.

HP support spent about an hour and half diligently troubleshooting before giving up and sending me a recovery media on a thumb drive to reinstall my entire OS.  Not sure if this would have mattered, but glad I don't have to try.  You would think they would check Intel's site as part of their protocol ....?

All the best,