Dell screen goes black and wont come back on

[princesspink]

Name model: Precision 7720
Graphics Card: NVIDIA Quadro P4000 4.0 GB

I have 2 problems that I think are some how related.

1. The laptop screen shuts off after the proper amount of mins set in windows. The screen will not turn back on unless you reboot the computer.
You have to hard reboot it. If you LIGHTLY press the power button, it shuts down the computer. Normally you have to hold the button in for 10 seconds but this you do not.

It seems like it is in sleep mode but I have ALL the sleep modes disabled in windows and BIOS. The power button does not pulse like it is in sleep mode either.

We have found out this only happens on the docking station. It does not happen when the computer is undocked.

While trying to figure out this problem, we turned off the switchable graphics in the BIOS. This corrects the problem but creates a NEW problem where the 3 monitors flicker. We have found out that this does not happen off the docking station either. If the screen are flicker while on the docking station and you undock the computer, the flicker will stop.

What have I done?
Reset all display settings
Turned off all Sleep Modes in Windows and BIOS
Dell replaced the motherboard and graphics card
Updated the graphics driver and rolled back the graphics driver.
Updated BIOS
Switch out docking stations

Right now we are trying to use a new thunderbolt docking station to see if the current old style docking station is the problem

 

[Beilstwh]

What version of windows do you have? When was the last time you patched it?

Bill
Lead Application Developer
New York State, USA

 

[princesspink]

Windows 10 Pro.

Its on OS version 1809.

 

[goombawaho]

Check for any driver updates on the Dell web site especially related to the docking station + definitely check for a BIOS update. Do the BIOS first.

 

[princesspink]

goombawaho, I did all of that. Everything is update to date.

 

[Beilstwh]

Did you upgrade the firmware on the docking station itself? The following links talk about nhow to do it on dell docking stations

https://www.drivereasy.com/knowledge/how-to-update-dell-docking-station-drivers/

Bill
Lead Application Developer
New York State, USA

 

[princesspink]

Beilstwh,

They were using a E docking station. Which I could not find anything to update that

We are not testing a thunderbolt docking station which I did all the upgrades for.

 

[DaveSolan]

It seems the problem is the connector of the old docking station, I am sure it would be working fine on the Thunderbold Docking station.

Regards,
Dave|Tech Support Team

https://www.Apps4Rent.com/

MIND IS MOST POWERFUL ELEMENT

 

[AdrianGates]

Were you able to ressolve the issue.

Adrian G,
Hosted QuickBooks Expert