cancel
Showing results for 
Search instead for 
Did you mean: 
Clarkd69
New member
1 0 0 0
Message 1 of 1
130
Flag Post

2nd Monitor keeps going off

HP Recommended
Prodesk 400 G4 Microtower
Microsoft Windows 10 (64-bit)

I've added a 2nd monitor to the PC using a Display Port to VGA cable, first monitor using display port to VGA cable.

 

The 2nd screen comes on and then goes blank and can see flickering in the background.  Sometimes shows no signal and then comes back on temporarily.  When it is on I can see lots of tiny dots on the screen.  I've swapped the cables over and the fault still remains.

 

 

Warning Be alert for scammers posting fake support phone numbers and/or email addresses on the community. If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation