Date: Sun, 27 Jun 2021 11:26:44 +0000 From: Greg V <greg@unrelenting.technology> To: Robert Huff <roberthuff@rcn.com> Cc: x11@freebsd.org, questions@freebsd.org Subject: Re: Old NVIDIA card, new FreeBSD = failure? Message-ID: <C46C9420-7745-434D-B408-288B0BCFEBBA@unrelenting.technology> In-Reply-To: <24791.42526.208238.436624@jerusalem.litteratus.org> References: <uZ6VybGvR6ddjj1CVAd0CMNpgvfbc65oLMD5y8r7OPur5j7flNkWuLoxJAueOHkyAJoOW68fE1zpTrvk18VPxSU3drao03Lv0n8UM6ge3y0=@protonmail.com> <36919.1624649280@segfault.tristatelogic.com> <24790.13300.679983.900189@jerusalem.litteratus.org> <778F35B8-10F3-4D4D-8200-A235FD9A0762@unrelenting.technology> <24791.42526.208238.436624@jerusalem.litteratus.org>
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On June 26, 2021 10:11:42 PM UTC, Robert Huff <roberthuff@rcn=2Ecom> wrote= : > >Greg V <greg@unrelenting=2Etechnology>: > >> Robert Huff <roberthuff@rcn=2Ecom>: >> =20 >> > (For anyone in my position: I _think_ the RX 460 and above >> >support GCN 2=2E1, which is what I _think_ is the bottom-end >> >specification=2E Cards matching this number seem to start at about >> >US $50=2E) >> =20 >> GCN is the name of the GPU architecture, not something a GPU >> "supports"=2E=2E > > Got that; the "support" is from the software=2E > I have two conflicting desires: > a) I want to run modern applications =2E=2E=2E > on the latest stable version of X =2E=2E=2E > using an actively maintained and > improved version of amdgpu/drm =2E=2E=2E > working with reasonably high-performance hardware=2E Yes, all you need is a GCN GPU=2E Avoid the really old pre-GCN (TeraScale = and older) architectures and you'll be fine=2E > b) I have a very limited budget, and would ideally like to be > able to use this on older systems - say ones with a PCIe 2=2E0 > expansion slot=2E No conflict here: PCI Express generations are all backward and forward com= patible=2E You can run the newest gen4 cards in gen2 slots just fine (obvio= usly at gen2 bandwidth)=2E Similarly it's all compatible between different lane counts, e=2Eg=2E you = can shove an x16 card into an x4 slot (if it's not an open ended slot=2E=2E= it can be made open-ended with a rotary tool :D)
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