Date: Fri, 29 Jan 2021 21:50:07 +0300 From: Greg V <greg@unrelenting.technology> To: Robert Huff <roberthuff@rcn.com> Cc: freebsd-x11 <freebsd-x11@freebsd.org> Subject: Re: loading drm crashes system Message-ID: <JNLPNQ.YQ8FZKSQ2BYS@unrelenting.technology> In-Reply-To: <24596.21901.618144.554362@jerusalem.litteratus.org> References: <24590.137.690675.515036@jerusalem.litteratus.org> <202101251816.10PIGVkF005233@sdf.org> <CANCZdfp0vU8NnQ9OPrdE8v74CbNP2f%2BJ-yjvNo6Hf_-WMPGr9g@mail.gmail.com> <202101290027.10T0RPxO004392@sdf.org> <L26PNQ.2P0RZEKYBTEV@unrelenting.technology> <24596.21901.618144.554362@jerusalem.litteratus.org>
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On Fri, Jan 29, 2021 at 13:35, Robert Huff <roberthuff@rcn.com> 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.
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