From owner-freebsd-x11@freebsd.org Fri Jan 29 18:50:24 2021 Return-Path: Delivered-To: freebsd-x11@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 573EE4F5F1D for ; Fri, 29 Jan 2021 18:50:24 +0000 (UTC) (envelope-from greg@unrelenting.technology) Received: from out0.migadu.com (out0.migadu.com [IPv6:2001:41d0:2:267::]) (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 4DS5xq2SdRz3mKX for ; Fri, 29 Jan 2021 18:50:23 +0000 (UTC) (envelope-from greg@unrelenting.technology) Date: Fri, 29 Jan 2021 21:50:07 +0300 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=unrelenting.technology; s=default; t=1611946215; 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: in-reply-to:in-reply-to:references:references; bh=tcxufTwvZKEb1JGm9jZrNvxttY17w+M4z4dU6lizcYs=; b=ShpXlLWY7W8uHab3cVlBFBUA1zhwOeoH9Y4gOYOLwBTv6OeqfLDcHEef+/5Re872WakP0l vVAgYZKrbbLc5LgC4d6bRSw6DnPccjnLaTVK+6sIFgaCtsEiXNnkR7/gEg4kprr6bRwdHu d8xpKmofnS9cZAt6YzqVh4t8PPhGATg= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Greg V Subject: Re: loading drm crashes system To: Robert Huff Cc: freebsd-x11 Message-Id: In-Reply-To: <24596.21901.618144.554362@jerusalem.litteratus.org> References: <24590.137.690675.515036@jerusalem.litteratus.org> <202101251816.10PIGVkF005233@sdf.org> <202101290027.10T0RPxO004392@sdf.org> <24596.21901.618144.554362@jerusalem.litteratus.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed X-Migadu-Flow: FLOW_OUT X-Migadu-Auth-User: greg@unrelenting.technology X-Rspamd-Queue-Id: 4DS5xq2SdRz3mKX X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=unrelenting.technology header.s=default header.b=ShpXlLWY; dmarc=pass (policy=none) header.from=unrelenting.technology; spf=pass (mx1.freebsd.org: domain of greg@unrelenting.technology designates 2001:41d0:2:267:: as permitted sender) smtp.mailfrom=greg@unrelenting.technology X-Spamd-Result: default: False [-2.00 / 15.00]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[unrelenting.technology:s=default]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2001:41d0:2:267::]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; NEURAL_SPAM_MEDIUM(1.00)[1.000]; SPAMHAUS_ZRD(0.00)[2001:41d0:2:267:::from:127.0.2.255]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[unrelenting.technology:+]; RCPT_COUNT_TWO(0.00)[2]; DMARC_POLICY_ALLOW(-0.50)[unrelenting.technology,none]; NEURAL_HAM_SHORT(-1.00)[-1.000]; RCVD_COUNT_ZERO(0.00)[0]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RBL_DBL_DONT_QUERY_IPS(0.00)[2001:41d0:2:267:::from]; ASN(0.00)[asn:16276, ipnet:2001:41d0::/32, country:FR]; MID_RHS_MATCH_FROM(0.00)[]; MAILMAN_DEST(0.00)[freebsd-x11] X-BeenThere: freebsd-x11@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: X11 on FreeBSD -- maintaining and support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 29 Jan 2021 18:50:24 -0000 On Fri, Jan 29, 2021 at 13:35, Robert Huff wrote: > > Hello > >> It is pretty well known that amdgpu is in a much better shape than >> legacy radeon. >> >> So the answer is kinda obvious and has been floating around on >> mailing lists and chat rooms for a long time: >> AMD GCN architecture cards are actually well supported, while >> pre-GCN relics (TeraScale/R600 and older) are "best effort" >> hopefully-supported-but-have-a-debugger-ready. > > Ergo, one should update to a GCN-compatible card. > Since you seem well-versed in the AMD line: what is the earliest > chip using GCN? > I've looked into this twice, and the best - very wobbly - answer > I can find is "Radeon HD 7730". I've also seen non-definitive stuff > which implies HD 7800 series, or HD 7900-series. > Can you help? You can't simply use a "number greater than N" comparison, due to what we call "Rebrandeon" :D i.e. models identical to an older generation getting new numbers, for the low-end models. You have to look at Wikipedia: https://en.wikipedia.org/wiki/List_of_AMD_graphics_processing_units#Radeon_HD_7000_series and check the Architecture column. Yep, HD7730 is Cape Verde, all good. (While HD8350-8490 and R5 220-235X are TeraScale rebrands.) P.S. Don't forget to CC the mailing list when replying.