Windows 10: External monitor detected but no signal

Hello,


I have an HP laptop, with an HP docking and 2 HP external monitors.


Everything works perfectly, except that sometimes often when going out of sleep mode one of the screens does not work, it remains without signal.


When the problem occurs, simply unplug and replug the PC from the doscking unit, or change the projection mode WIN + P and the screen will come back on.

Here is a screenshot of the problem. The screen is well detected but it is square, and in the advanced settings it is mentioned that it is inactive.





Here are the actions taken without success:

- Change the DisplayPort cables

- Change the screens

- Windows updates

- HP updates bios, drivers ...

- Intel updates graphics driver

- Update of the docking.


Thank you for your help,

:)

 

External Monitor not detected

I am running windows 10 on a MacBook Pro using bootcamp. I use a imac as an external monitor. Windows cannot "detect" the monitor. using a firewire connection, which works splendidly under OS. Any suggestions?

 

External monitor detected but no signal

Bence, if the steps I gave can't get the monitor detected then I know of nothing else because they always have worked before.

See if this helps to set the resolution separately:

https://www.addictivetips.com/windows-tips/diff...

 

External Monitor Detected but Does not Display

I have a Surface Pro 3 running Windows 10, creators update 1803.

When attempting to connect to an external display (mini DisplayPort to HDMI), Windows detects the monitor but displays no signal.

The extended desktop appears in screenshots, but nothing on the monitor itself.

So far, I have:

• Updated Surface Pro 3 firmware
• Checked for all Windows update
• Tested with multiple monitors (at least 4)
• Tested with multiple cables
• Tested with multiple adaptors
• Updated Intel Graphics 4400 HD driver
• Removed Intel Graphics 4400 HD and reinstalled
• Rebooted more times than I can count

Any advice?