-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
- HP Community
- Desktops
- Desktop Video, Display and Touch
- All in 1 doesn't detect 2nd display

Create an account on the HP Community to personalize your profile and ask a question
11-20-2020 06:09 PM
I have an HP All in One 23-k105xt.
I want to add a second monitor, but the display settings don't detect the second monitor when plugged in with a working HDMI cable. I know the HDMI cable is not the problem, because I swapped it out with a cable that I know works and it still didn't detect.
The monitor turns on and worked in this capacity on a different computer, but that one died, and here we are.
I don't know if this is a problem with the hardware (such as the HDMI port) or the software (such as the port registration).
11-20-2020 09:55 PM
The specs of your machine is
https://support.hp.com/us-en/document/c04197719
It has HDMI scalar card part # 720023-001 which is for HDMI in port. You can not use this port for an external monitor. You can use this port for a game console and use monitor of your AIO as a screen
Regards.
***
**Click the KUDOS thumb up on the left to say 'Thanks'**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.
11-21-2020 04:23 PM
This computer has a button next to the HDMI port that allows the port to switch from video in to video out.
I've had other problems with this machine, such as the headphone jack port doesn't work either.
So, what do we do then?