Advice on laptop with USB-C port and USB-Type C Multipoint Adapter Background: a few months ago, I bought a generic / inexpensive USB-Type C Multipoint Adapter (with VGA output) and around the same time ordered a laptop that advertised a USB-C port. When I received the laptop, I saw that it did not have the USB-C port, so I returned it. I kept the USB-Type C Multipoint Adapter. I also started digging into the USB-Type C port and learned that there are several variations -- some that support video and some that do not.
(I guess a key thing is USB-C "alternate mode" which, iiuc, under some variations, can support video -- I strongly suspect that not all implementations of alternate-mode support video, and even less so, all variations of video.) Yesterday, I almost bought a HP Pavilion Laptop model 15z-eh000, but was uncertain it would work the way I wanted, and today the price has gone back up by $120, so I'm not anxious to buy it atm. But, I want to understand more so that when I find a laptop that I want to buy I can confirm that it meets my needs. My needs: * first, I want to hook it up to my KVM switch (with two other computers), install Buster on it (and C++ version 20 (or whatever they call it)) and use it for development of a lexer for Scintilla. * second, as a laptop, I expect on rare occasions to disconnect it from my KVM switch to use it portably Other information: The KVM switch has VGA input and output, and the Multipoint adapter has USB-C input and, among other things, a VGA output (and RJ-45 for Ethernet, bbut no HDMI, which would be irrelevant anyway in view of the KVM switch and my VGA monitor). Below I quote some information from various web pages I looked at with respect to the HP 15z-eh000, and here is the "specification" for the (2) USB-C ports: "1 SuperSpeed USB Type-C® 10Gbps signaling rate (USB Power Delivery, DisplayPort™ 1.4, HDMI 1.4, HP Sleep and Charge)(with AMD Athlon™ Gold processor);" So, (some of) my questions: Would that laptop work with Buster and my Multiport adapter with VGA adapter? Does Buster support DisplayPort? (Do I need to have DisplayPort supported?) If I had a multiport adapter with HDMI output would it work with that laptop? (Not that that would work with my KVM switch, but it provides a little extra information to me, and I could consider an HDMI to VGA adapter in the "chain".) Thanks for any input! Extra credit if you can claim experience with actual devices ;-) Some web page resources: https://laptoping.com/specs/product/hp-15z-eh000/ ` Video ports Video out via USB-C ' https://store.hp.com/us/en/slp/black-friday-sale?source=aw&subacctid=166580&subacctname=Slickdeals&adcampaigngroup=111627&awc=7168_1606504159_c1fb74e828bbeb9317783c20cd6c719b&jumpid=af_gen_nc_ns&utm_medium=af&utm_source=aw&utm_campaign=Slickdeals HP Pavilion Laptop - 15z-eh000 touch optional ` External I/O Ports 1 SuperSpeed USB Type-C® 10Gbps signaling rate (USB Power Delivery, DisplayPort™ 1.4, HDMI 1.4, HP Sleep and Charge)(with AMD Athlon™ Gold processor); 1 SuperSpeed USB Type-C® 10Gbps signaling rate (USB Power Delivery, DisplayPort™ 1.2, HDMI 2.0, HP Sleep and Charge)(with AMD Ryzen™ 3/5/7 processor); 1 headphone/microphone combo [19]