On 2020-10-05, Jack <[email protected]> wrote: > Still not Gentoo specific, but I'm still trying to figure out if my > motherboard (MSI B350 Tomahawk) is doing something funny with the > USB connections. In theory, there should be USB3 connections both > on the back IO panel and on the front case ports.
I don't know if this is helpful, but I have an MSI B450 Tomahawk Max, and the USB3.3 headers that I route to front-panel connectors work fine. I just plugged a USB3 flash drive into one of them: [299865.738407] usb 2-4: new SuperSpeed Gen 1 USB device number 2 using xhci_hcd [299865.760045] usb 2-4: New USB device found, idVendor=05dc, idProduct=a838, bcdDevice=11.00 [299865.760051] usb 2-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [299865.760053] usb 2-4: Product: USB Flash Drive [299865.760056] usb 2-4: Manufacturer: Lexar [299865.760058] usb 2-4: SerialNumber: AAHDQZ7ENQ3ORRPS [299865.770842] usb-storage 2-4:1.0: USB Mass Storage device detected [299865.771034] scsi host9: usb-storage 2-4:1.0 [299867.095086] scsi 9:0:0:0: Direct-Access Lexar USB Flash Drive 1100 PQ: 0 ANSI: 6 [299867.095310] sd 9:0:0:0: Attached scsi generic sg4 type 0 [299867.095905] sd 9:0:0:0: [sdd] 62517248 512-byte logical blocks: (32.0 GB/29.8 GiB) [299867.096389] sd 9:0:0:0: [sdd] Write Protect is off [299867.096394] sd 9:0:0:0: [sdd] Mode Sense: 43 00 00 00 [299867.096872] sd 9:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [299867.112375] sdd: sdd1 sdd2 [299867.114301] sd 9:0:0:0: [sdd] Attached SCSI removable disk I also have two USB2 connectors on the front panel. All total, there are 2 x USB2 in back panel 4 x USB3.2 in back panel 4 x USB2 on two dual-port 10-pin headers 2 x USB3.2 on one dual-port 20-pin header It appears that I have a total of 6 USB hubs on the motherboard: $ lsusb Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub It looks like you should have two 20-pin USB3 headers on your motherboard (mine only has 1). Are you sure your front-panel connectors are plugged into a USB3 header and not one of the 10-pin USB2 headers? -- Grant
