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- USB C > HDMI not working, even with supplied adapter?

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12-25-2018 04:23 AM
https://support.hp.com/ie-en/document/c06067279
I used the HDMI adapter which HP supplied with the laptop.
It's Part Number is 932777-001.
I connected it to my TV using HDMI cable. I used the Windows-P to select Extend/Duplicate but nothing happens. The TV is on the correct input.
Anyone have any ideas here? Is there some other setting I need to enable?
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Accepted Solutions
12-26-2018 12:50 AM
Yes. The adapter or the port itself could be faulty.
Have you used the HP Hardware Diagnostics to test the USB port?
There is a test in the component test section, but it requires the use of an external USB device.
You can purchase a USB type-C flash drive for that. I have a couple of Kingston DTmicroDuo 3C USB USB 2.0/Type-C flash drives. They are cheap. I have seen them at Amazon for £10.00.
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12-25-2018 04:42 AM - edited 12-25-2018 04:44 AM
What you have tried is as you should if you have also tested the USB port operation with a USB flash drive or other USB device
That would seem to point to the possibility of the USB to HDMI cable being a faulty unit.
You can test that with another USB to HDMI cable.
Do you have a relative or a friend who wouldn't mind loaning you the use of one to verify yours has an issue?
The alternative and perhaps simpler solution would be to take your ultrabook to a friend or relative's home to test your HDMI cable's output.
I suggest contacting HP for warranty service to obtain a replacement gender change adapter.
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12-25-2018 04:54 AM
Thanks!
I don't know many with a USB C adapter. Will contact HP warranty support and get a replacement.
Hopefully the port itself is not defective. It's a Type-C connecter so difficult as of now to get other devices to test.
I have a Type C > Ethernet adapter coming in the mail soon so that should give me a good indication.
12-25-2018 07:16 AM
Why not try the setup that you have with a connection to a different HDTV?
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12-25-2018 07:27 AM - edited 12-25-2018 07:30 AM
I have an old eBay generic and inexpensive $20.00 USB 3.1 type-C to HDMI adapter that I have used for years without issue on my HP product loan ultrabook and notebooks.
Have you tested the USB 3.1 type-C port with a USB flash drive to ensure that it is working?
It was my mistake to have not looked up the part number of the adapter.
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12-25-2018 07:30 AM
I don't have a USB Type C flash drive to test it out unfortunately. In fact I have very few devices to test which is unfortunate.
The port is this one:
1 USB 3.1 Type-C™ Gen 1 (Data Transfer up to 5 Gb/s, Power Delivery, DisplayPort™ 1.2, HP Sleep and Charge)
Here is the adapter:
https://www.amazon.co.uk/dp/B01A1VJ5A8
12-26-2018 12:50 AM
Yes. The adapter or the port itself could be faulty.
Have you used the HP Hardware Diagnostics to test the USB port?
There is a test in the component test section, but it requires the use of an external USB device.
You can purchase a USB type-C flash drive for that. I have a couple of Kingston DTmicroDuo 3C USB USB 2.0/Type-C flash drives. They are cheap. I have seen them at Amazon for £10.00.
I am a volunteer forum member. If my suggestion helped you solve your issue, help others by marking that post as the accepted solution. Say thanks by clicking on the Yes button next to the "was this reply helpful?"
12-28-2018 03:40 AM
Sadly, the USB C port is officially defective.
The USB-C>HDMI adapter worked perfectly in my friend's laptop.
HIs own adapter wouldn't work on mine.
Called HP and they're picking up the laptop for repair on Monday. A shame to say the least, but at least I know now!
THanks for all the help.