Why have you ruled out a system with an integrated Intel GPU? I've been quite satisfied with the integrated Intel GPUs for quite some time. They work well with the compositors in Xfce and GNOME. They don't seem to have any issues with XScreensaver's 3D modules. This is the extent of my 3D experience as I am not a gamer.
My main desktop is a Lenovo M73 i5 based tower and I've had it over seven years bought as an off-lease model. The GPU has two ports and supports dual monitors without issue. When I read all the torment people put themselves through with Nvidia, I just shake my head. As far as I'm concerned Nvidia is banned from my network. Yes, I do have non-free firmware packages installed. I can't say that they're strictly necessary. - Nate -- "The optimist proclaims that we live in the best of all possible worlds. The pessimist fears this is true." Web: https://www.n0nb.us Projects: https://github.com/N0NB GPG fingerprint: 82D6 4F6B 0E67 CD41 F689 BBA6 FB2C 5130 D55A 8819
signature.asc
Description: PGP signature