From nobody Sun Jun 27 11:26:44 2021 X-Original-To: x11@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 3789011CAD39 for ; Sun, 27 Jun 2021 11:26:49 +0000 (UTC) (envelope-from greg@unrelenting.technology) Received: from out2.migadu.com (out2.migadu.com [IPv6:2001:41d0:2:aacc::]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4GCT3F0Tv5z3pZP; Sun, 27 Jun 2021 11:26:48 +0000 (UTC) (envelope-from greg@unrelenting.technology) Date: Sun, 27 Jun 2021 11:26:44 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=unrelenting.technology; s=key1; t=1624793207; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=BM6SXugI0qUFat6/n44DyQg4uQ3whw4lwbQBVjJqj1g=; b=Ie47RmBBOOuGQwX8cCD+/v+ae64osVZU4kgG132gnSjqNeFrq+B3OsHfZv3TEsaL2weTlC gOWgsxIdz6r8RGzMUjYWk4VxuO0VPchacABof1noCkFU9kXu3rrE+G8qIgFt1aRFcdod17 MyBl1CACuJ20mwki2dCF9J/WhZ8Ax73Y5FAJwqRC+AodEGBPXEyuw9X8m1+F5Rjl7bnQk5 DbPvXV0GG1TciDAJsxu3hl+8ZfR6fDKB/heSCIHyP25Z+z2AW8BwIAYaiAvwqt6ddvSSL2 o7PMfhkZfXgKsNGUPgpxCymFo1WyDFvQ7RGpFSjNiLDUJg0JoGbEXdDFrdtg3g== X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Greg V To: Robert Huff CC: x11@freebsd.org, questions@freebsd.org Subject: Re: Old NVIDIA card, new FreeBSD = failure? In-Reply-To: <24791.42526.208238.436624@jerusalem.litteratus.org> References: <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> Message-ID: List-Id: X11 List-Archive: https://lists.freebsd.org/archives/freebsd-x11 List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-x11@freebsd.org X-BeenThere: freebsd-x11@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Migadu-Flow: FLOW_OUT X-Migadu-Auth-User: greg@unrelenting.technology X-Rspamd-Queue-Id: 4GCT3F0Tv5z3pZP X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[] X-Spam: Yes X-ThisMailContainsUnwantedMimeParts: N On June 26, 2021 10:11:42 PM UTC, Robert Huff wrote= : > >Greg V : > >> Robert Huff : >> =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)