[Pixel C Accessories] NJ72:
Final post following another conversation with Google Support - TL;DR - Pixel C DOES NOT SUPPORT HDMI OUT YET.

Daniel3:12 PM

Thanks for contacting Google Support. My name is Daniel.

Dan Shipman-Toon3:13 PM

Hi Daniel, I have a Google Pixel C running NRD91D 7.0.0, however HDMI out isn't working

Daniel3:13 PM

Ah right, I'm sorry to hear that. Are you trying to connected it to a TV?

Dan Shipman-Toon3:14 PM

To an HDMI PC monitor (1080p compatible)

Daniel3:15 PM

Right and this is from you USB type C on device to HDMI, correct?

Dan Shipman-Toon3:15 PM

Yes, I have a USB-C to HDMI adaptor

Daniel3:16 PM

Thank's. What happens when you connect it? Does anything happen on the screen?

Dan Shipman-Toon3:16 PM

The screen flashes, and then comes up with 'no signal'. On the tablet it comes up with a notification saying 'Supplying power to USB, touch for more options'

Dan Shipman-Toon3:17 PM

When I touch it, it doesn't give me any other option other than 'supply power'

Dan Shipman-Toon3:17 PM

I am a part of the Android Beta program if that makes a difference

Daniel3:18 PM

Right. Are you trying to watch a movie?

Dan Shipman-Toon3:18 PM

I'm just trying to replicate my display at the moment. Ideally I want to be able to use my Pixel C as a portable work machine, deliver presentations and use it as a workstation using Andromium OS

Dan Shipman-Toon3:19 PM

I take it to customer meetings at the moment and it would be good to be able to utilise their HDMI displays to show the presentation

Dan Shipman-Toon3:19 PM

Chromecast isn't an option due to the lack of wireless networks and lack of accessibility to the monitor itself

Daniel3:19 PM

Right, I get you. It would be handy for you to do that. If you don't mind giving me a moment while I look into this for you Dan.

Dan Shipman-Toon3:20 PM

No problem at all, thanks

Daniel3:23 PM

Thank's for holding Dan, I have checked this for you and unfortunately Pixel C does NOT currently support Type-C display adaptors (such as the USB Type-C to HDMI adaptor or USB Type-C DisplayPort cable accessories sold on the Google Store for US & GB customers). The Google product team is aware of this and is working on software fix.

Daniel3:23 PM

I apologise for any inconvenience this may have caused Dan.

Dan Shipman-Toon3:24 PM

OK, so to confirm I understand - It doesn't support it YET but will in the future?

Dan Shipman-Toon3:24 PM

Just your website clearly says that the USB-C to HDMI adaptor works with the Pixel C?

Dan Shipman-Toon3:25 PM

https://store.google.com/product/usb_type_c_to_hdmi_adapter 'Enjoy it with Pixel C'

Dan Shipman-Toon3:25 PM

:(

Daniel3:26 PM

Yes, I am confused too Dan. I thought this was something that was available. If you don't mind I'm going to pass this webpage onto our specialist and see what they say. If you don't mind holding a little bit longer?

Dan Shipman-Toon3:26 PM

Yeah, no problem waiting

Daniel3:30 PM

Thank's Dan. I can confirm that this is not compatible. Having read through the web page you provided, it doesn't state that this is specifically for the Pixel C or for a tablet. It is just an accessory for certain device's. It is something that we are aware of and will be making sure this is possible within the foreseeable future.

Daniel3:30 PM

Apologise once again if you felt as though there was some misleading information about that.

Dan Shipman-Toon3:30 PM

I don't really see how I can 'Enjoy it with Pixel C' if it doesn't work! lol

Daniel3:31 PM

Apologise once again if you felt as though there was some misleading information about that.

Dan Shipman-Toon3:32 PM

So, from what you've said, HDMI out is something that is being worked on for the Pixel C?

Daniel3:33 PM

Yes, I don't have much information regarding this but it is something we are aware of and will be working on making this possible.

Daniel3:33 PM

Is there anything else I can help you with today?

Dan Shipman-Toon3:34 PM

Not at the moment, but thanks very much for looking in to it for me

Daniel3:34 PM

It was my pleasure Dan. Thanks for contacting Google! There’s a short survey coming up, we’d love to hear your feedback about our interaction today. Have a great day!