[mgrayeb]

Hello Alban,
Thank you again for your reply.
When I shared your previous reply with the developer at vMix, here was his reply:

"Hi Mike,

The "a lot of data to shuffle quickly!" is the key point to the performance issues with USB displays.
They need to first render on the GPU, then copy that data back to the CPU, then encode it over USB.
This process of downloading from a GPU is quite slow compared to upload and hard to get right, and we have spent years trying to optimise for it.
If another application tries to do the same thing while vMix is running it throws all our optimisations out the window and leads to random and unpredictable high render times, especially on laptops.

It is for this reason we do not support or recommend USB connected displays.

Kind Regards,

Martin
vMix"

Alban, any thoughts on Martin's concerns? My guess is it's going to come down to real-world testing on my part. I've been overtasking the laptop while running vMix (running Titler Live, Zoom meeting, and multiple vMix Call sessions simultaneously while streaming to two destinations) and periodically I've noticed CPU and/or GPU overload warnings in vMix but I think that may in part have been caused by overheating of the laptop, which, from what I've gathered from user reviews and my own experiences, seems common in the HP Omen 15 series. Now that I have a cooling pad I'm hoping some of that might be mitigated but I may need to offload some tasks to a second computer, e.g. the forthcoming laptop.

Re Your question on my experience with the refresh rate: I don't do any gaming at all, and I think I purchased the 144 Hz refresh rate display option more out of ignorance on my part than anything else. I was thinking I might need to do some screen capturing of my display to bring into my live stream so I wanted to ensure I would'nt have any tearing or other issues but I'm guessing for my needs and since I don't game that it was an overkill choice. That's why I only selected the 60 Hz refresh rate display option on the laptop I recently ordered.

Separately, it appears from your most recent reply to me that the HP Elite 14" display that is powered by USB-C does not use DisplayLink technology, and I don't see that model as listed on the DisplayLink website. I guess I was mentioning Thunderbolt-powered because a consumer or two had posted reviews on HP's website for that unit complaining that the unit requires Thunderbolt but maybe they were misinformed.

Also, I checked the Display Adapter in the Device Manager and the Intel Integrated Graphics is not listed; only the nVidia graphics card. I also checked the display settings and there was no option there to disable integrated graphics or direct everything to the nVidia card so my sense is I'm all set there.

I'm hoping you're correct about the dual channel RAM and that it will be helpful to me in my use case.

Thank you again for your helpful reply.

Kind regards,


Mike