No HDMI signal from Display Port Monitor

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Alphabot

PCHF Member
PCHF Member
Oct 9, 2021
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Hi so my main monitor keeps getting the NO HDMI SIGNAL message and idk why. I just built my pc and all the parts were used but everything seems to be working fine except the second monitor. When I tried uninstalling the graphics drivers the second monitor did turn on but it wasn't extending, it was just mirroring my main monitor. As soon as I installed the drivers it turned black and got the no signal message. When I restart my pc the monitor turns on and I get the windows logo and MOBO logo but as soon as it hits the passcode/pin screen it turns black. I have a RX580 and my monitor is connected via a DisplayPort to HDMI cable while my secondary is a straight HDMI cable that works fine.
 

phillpower2

PCHF Administrator
Administrator
Support Team
Sep 9, 2016
10,136
864
Can you post the brand and model name or number of the power supply (PSU).

Download then run Speccy (free) and post the resultant url for us, details here, this will provide us with information about your computer hardware + any software that you have installed that may explain the present issue/s.

To publish a Speccy profile to the Web:

In Speccy, click File, and then click Publish Snapshot.

In the Publish Snapshot dialog box, click Yes to enable Speccy to proceed.

Speccy publishes the profile and displays a second Publish Snapshot. You can open the URL in your default browser, copy it to the clipboard, or close the dialog box.
 

Alphabot

PCHF Member
PCHF Member
Oct 9, 2021
3
0
16
Do you have any recommendations for a PSU then? I have my old PSU still not sure what the exact model is but it’s a 600W Bronze rated PSU by Corsair. I have around $80 budget
 

phillpower2

PCHF Administrator
Administrator
Support Team
Sep 9, 2016
10,136
864
I wouldn`t use it long term but you could swap in your 600W Corsair for testing purposes, see how that goes before purchasing anything new, it may also be necessary to get the GPU tested by a local tech, you getting the no signal message means that the screen is fine and that the problem is with the source of the video - the GPU, this includes the card not getting enough clean and stable power from the PSU.
 
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