Cannot connect an external monitor to HP 31.5 inch All in One Desktop

[Jim_SIS]

I have just purchased an HP Pavilion 31.5 inch All in One Desktop. 

Product number: 577H0AA#ABL Serial number: [edit]

I connected an external monitor to the computer via HDMI 1 port to the HDMI port on the monitor.  Windows doesn't detect the monitor to allow me to have an extended desktop.  I tried using port HDMI 2 & HDMI 3 ports as well.  I also tried using a diferent HDMI cable.

According to the Q&A on the sales website, an external monitor will work.

I cannot find any documentation indicating if the HDMI ports are for input only.

Thanks for your replies.

[Jim_SIS]

According to live technical help, none of the HDMI connections are for video out.  They are for video in only.

The answer published on the sales website Q&A is NOT correct, an external monitor can be connected.

I'm wondering is any wireless / bluetooth type connections might give me the ability to connect an external monitor?

[HBAC]

Hi Jim-SIS,

I hvae the same problem since January 2023, I bought the "All in One PC: HP Pavilion 32-b0759nz" and tryd to connect to 

HP X32c FHD Curved 165HzGaming-Monitor. When I bought the Allin one, the Sales told me that will work.

The 3 HDMI port are only input Ports. So I tried it with USB Port but this also not worked. So I give up, because I still had my Olf Desktop PC which worked with the HP X32c FHD and the 27x Monitor.

Now since October I change on this PC to Windows 10 and was thinking I will try again with the

All in One HP Pavilion 32-b0759nzwith  Windows 11 to connect to the HP X32c FHD. Spend hours for this, all the Support for Windows 11 and HP information for connecting a external Monitor do not work.

My all in on PC has 

-         1 SuperSpeed USB Type-C® 5 Gbit/s Signalrate

-         2 SuperSpeed USB Type-A 10 Gbit/s Signalrate

-         1 SuperSpeed USB Type-A 5 Gbit/s Signalrate

So I bought and try it with :

USB Type C Adapter cable for HDMI and also one with DisplayPort but it does "Not working".

I had a older "Club 3D (CSV-1477) USB 3.1 Gen1 (USB Type A) to DUAL DP Adapter this is function, but only for about 5 Minutes then it starting  every Minute that Windows Desktop get smaller and Bigger every Minute.

Monitor on Both Side are set to

- Resolution 1920 x 1080

- Rate 60 HZ

- Sleeping mode "never"

So disconnect it again.

So if someone in the HP Community has any good idea are welcome.

[Jim_SIS]

HBAC,

I see my post earlier has a typo, it should read an external monitor cannot be connected.  I also tried an external docking device, this didn't work.

The hardware doesn't allow a video out signal.  

I posted a review on the sales website advising the error in the Q&A, it was removed by HP.

We are stuck with no option for external monitor.

[HBAC]

Hi Jim_SIS,

I open in the Community a Request. When I get more Info i will write you again 

[Jim_SIS]

Thank you, I would appreciate that.