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Hermes SMTP Server) with ESMTPA ID e8b1ccac11afac99f7c585ab9e922f12; Sun, 22 Dec 2024 22:56:04 +0000 (UTC) From: Mark Millard Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3826.300.87.4.3\)) Subject: Re: USB4/TBT3 support [related side note?] Message-Id: <5EC4A592-15B7-44EC-85F8-AA2CD0332062@yahoo.com> Date: Sun, 22 Dec 2024 14:55:53 -0800 To: mohammad@thelightbird.com, freebsd-hackers X-Mailer: Apple Mail (2.3826.300.87.4.3) References: <5EC4A592-15B7-44EC-85F8-AA2CD0332062.ref@yahoo.com> X-Spamd-Result: default: False [-3.50 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-1.000]; MV_CASE(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[yahoo.com,reject]; R_SPF_ALLOW(-0.20)[+ptr:yahoo.com]; R_DKIM_ALLOW(-0.20)[yahoo.com:s=s2048]; MIME_GOOD(-0.10)[text/plain]; ARC_NA(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; MIME_TRACE(0.00)[0:+]; TO_DN_SOME(0.00)[]; FREEMAIL_ENVFROM(0.00)[yahoo.com]; RCVD_TLS_LAST(0.00)[]; DWL_DNSWL_NONE(0.00)[yahoo.com:dkim]; FREEMAIL_FROM(0.00)[yahoo.com]; FROM_HAS_DN(0.00)[]; ASN(0.00)[asn:36647, ipnet:98.137.64.0/20, country:US]; RCVD_IN_DNSWL_NONE(0.00)[98.137.65.147:from]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; DKIM_TRACE(0.00)[yahoo.com:+]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; RWL_MAILSPIKE_POSSIBLE(0.00)[98.137.65.147:from]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; SUBJECT_HAS_QUESTION(0.00)[] X-Rspamd-Queue-Id: 4YGc2c3lhjz4JxZ X-Spamd-Bar: --- Mohammad Noureldin wrote on Date: Fri, 20 Dec 2024 16:04:20 UTC > . . . This is more a note about a context that may in some ways be somewhat analogous, despite TBT3+ and USB4+ not being involved. The example that I have access to is a Windows DevKit 2023. It has 3 USB-A ports and 2 USB-C ports. FreeBSD works with the USB-A ones but not with the USB-C ones. (The FreeBSD loader work for all --via the UEFI/ACPI, of course.) What seems to be unique that might contribute is that the 2 USB-C ports also support HBR3 Transmission Mode (4 lane x 8.1 Gbps/lane) that has support for: SST: 5120x2880 @ 60Hz, SST: 4096x2160 @ 60Hz, MST: (x2) 3840x2160 @ 60Hz (RB2), MST: (x2) 2560x1600 @ 60Hz (CVT, RB) (Not that I use the USB-C ports at all. I stick to the USB-A USB ports.) I'm not proposing that you make the Windows DevKit 2023 USB-C ports work. I just do not not know how common such a combination is for USB-C. It may be more of an aarch64 specific combination rather than anything generalizing much to amd64. The Windows DevKit 2023 also has a mDP HBR2 port that I do use. === Mark Millard marklmi at yahoo.com