Does the HP Laptop 15s-du1xxx support DP alt mode

[kemitlovescake]

We are trying to run dual screen off a System Model HP Laptop 15s-du1xxx using a usb-c to HDMI splitter. The splitter requires DP alt mode. I am guessing this may be an issue (the splitter works fine with other laptops in the house so not an issue). The splitter is a ALOGIC splitter (if that helps).

After trying multiple different approaches, have not been able to get it to work.

For this laptop for which there is a single HMDI and usb-c, is there an alternative (false safe) way of running dual screens? (e.g., one of the HP docks).

[Echo_Lake]

@kemitlovescake

Thank you for posting on HP Support Community.

Don't worry as I'll be glad to help, I have a few troubleshooting steps we could try to fix the issue:  

1. Select a connection type based on your second monitor.High Definition TV: DVI  or HDMI  cable

2. Connect the TV or monitor to the computer using the cable you chose.

3. Connect a power cable to the TV or monitor, and then turn it on.

4. TV connections only: Change the TV video input source to match the video source connection from the computer (Line-1, Video-1, HDMI, etc.). Refer to documents that came with the TV for instructions.

   Depending on the TV, the image quality might not be as good as that of a monitor.

5. Turn on the computer.

And, also you need to check the USB-C port compatibility most of the USB-C ports does not support video output. 

You can check the USB port details in product specification page: https://support.hp.com/in-en/document/c01961011

Hope this helps! Keep me posted for further assistance.
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