Hello all, I do independent verification and testing of USB-C devices and cables alongside Benson Leung, GTrusted, and other reviewers.
I recently bought a HD-500 display dock for use with a Google Pixel phone and discovered this dock is not USB-C compliant.
The dock itself is missing Rd resistors on its input USB-C port. Because of this, only Vbus hot corded chargers (or spec-violating Vbus hot receptacle chargers) will successfully power it. This is the same flaw the Nokia N1 suffers from, and means this dock is USB-C Spec 1.2 noncompliant.
I find this exceptionally odd since the manufacture date of the dock is "30.06.2016" and by no means "first gen". The standard was well established, and Microsoft/Nokia engineers sit on the committee that helped write the spec.
Is this correctable by a firmware update? If not, I'm fairly certain this runs afoul of the agreement when you download the specification to implement it. Or is there somewhere I can send it to exchange it?
I hope this is the correct avenue to bring this issue to light to the Microsoft Engineers. There are other issues with the dock I am investigating separately with Google. (PS: I am aware it is not "sold as compatible with other devices". However, some basic rules must be followed when creating a USB-C device. Else companies get in trouble for it later. Please see the following paragraph.)
LIMITED COPYRIGHT LICENSE
The USB 3.0 Promoters grant a conditional copyright license under the copyrights embodied in the USB Type-C™ Cable and Connector Specification to use and reproduce the Specification for the sole purpose of, and solely to the extent necessary for, evaluating
whether to implement the Specification in products that would comply with the specification. Without limiting the foregoing, use of the Specification for the purpose of filing or modifying any patent application to target the Specification
or USB compliant products is not authorized. Except for this express copyright license, no other rights or licenses are granted, including without limitation any patent licenses. In order to obtain any additional intellectual property licenses or licensing
commitments associated with the Specification a party must execute the USB 3.0 Adopters Agreement.NOTE: By using the Specification, you accept these license terms on your own behalf and, in the case where you are doing this as an employee, on behalf of your employer.