[lhl]

While having hardware compatibility issues suck, I'm not sure what your problems have to do with AMD's mobile APUs, which have their USB2/3/4 controllers implemented on-die (block diagram: https://cdn.videocardz.com/1/2021/12/AMD-Rembrandt-Diagram.j...) not using an external controller.

USB features depend ultimately on the laptop manufacturers' implementation (eg neither the HP or Lenovo models linked implement USB4 but they are in other models like the Lenovo Z13), but I haven't seen any that claim to have DP-alt support not be able to support it. As the Framework will have USB4 (and DP-alt and PCIe encapsulation are mandated by Microsoft for Windows 11 compatibility), I don't think that's a real worry for anyone.

[bitL]

Glad to hear that! My 8-core AMD laptop from ASUS with 3080 is almost 2 years old now so things might have changed. My Threadripper still has USB issues and I don't like e.g. inability to type text or move mouse for 10-20 seconds just because the USB controller on the most expensive Threadripper board decides to have a game of disconnects.

[lhl]

Again, I agree that hardware compatibility issues suck... Personally, I think life's too short to live with glitches like that - ASMedia chips are used in a lot of PCIe USB cards these days as well, but I've had good luck w/ Renasas cards in the recent past (when I was running VFIO). These USB cards are all pretty cheap ($20-40), so I'd order a few to try and keep the one that works the best.