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<p style="margin-bottom:0in;line-height:100%;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">I had a power outage a couple of weeks ago which lasted longer than my UPS battery life and have had a number of USB issues since then. </p><p style="margin-bottom:0in;line-height:100%;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">While I was separately recharging the UPS, which took about 5 hours, I rebooted the system which then immediately froze on boot with an USB over current condition. This appeared to be related to the MB front panel connection and at first I thought that somehow a surge made it through the UPS and had toasted the motherboards own front port connection. This turns out not to have been the case. It’s what happened next that puzzles me tho.</p><p style="margin-bottom:0in;line-height:100%;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">I have an external NVME enclosure with a PCI-e X4 512 G M.2 storage which I have been tinkering with. After disconnecting the front ports on the MB and, I do have a PCI-e 5 port card with 4 x A + 1 Type-C connectors, which I had configured to provide four more front ports, with two of them Type-C. NB I don’t have the supplemental power connected as I was anticipating only to use these ports to use data, for the time being. (This is part of what makes me think the voltage demand reporting might be the culprit)<br><br>When the front adapter is plugged in this also isolates the Type-C port on the actual PCI-e card from being used. After I removed all connections from that card and I plugged my M.2 device into the motherboard’s one Type-C port the system turned off like a light switch, no hang, just off.<br><br>After much fooling around, starting with connecting the keyboard and mouse to the onboard legacy USB 2.0 slots, I’m sort of back where I started. The two stock USB 3 front ports are connected and working. The supplemental front ports are connected to the expansion card and working, sort of, Type-A works, Type-C does not.<br><br>Connecting the device, if I connect using a cord adapter to Type-A, the mounts show up in /run/media. It is configured as a boot device. At first I thought the over current was related to the fact that that particular cord adapter is 3 ft long, but I’m rethinking that although consistent power negotiating and impedance seem to be part of the problem.</p><p style="margin-bottom:0in;line-height:100%;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">What did happen was that the M.2 drive had lost it’s type label and I thought I did the right thing by using gdisk to relabel the volume, but now it shows up as W95 Ext d (LBA). Also, gparted now shows a libparted error for the actual volume I am currently booting from, although gnome-disks is fine with it.<br><br>Perhaps the libparted error is related to my kernel version and non complementary libparted updates. I have seen this as an old issue of out of but I cannot so far consistently switch from connecting the device via Type A and Type C connections. Maybe this is a memory hangover concerning the voltage requested by Type-A vs Type-C<br><br><br>My current kernel.<br><br>Linux archon 5.8.8-100.fc31.x86_64 #1 SMP Wed Sep 9 20:29:23 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux<br><br><br>Here is what happens when I’m using the Type-A to C adapter cable. Everything is detected and mounted in /run/media<br><br><br>udevadm monitor<br><br>monitor will print the received events for:<br><br>UDEV - the event which udev sends out after rule processing<br><br>KERNEL - the kernel uevent<br><br><br>KERNEL[1144.231633] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4 (usb)<br><br>KERNEL[1144.236767] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0 (usb)<br><br>KERNEL[1144.250366] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4 (scsi)<br><br>KERNEL[1144.250424] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/scsi_host/host4 (scsi_host)<br><br>KERNEL[1144.250509] bind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0 (usb)<br><br>KERNEL[1144.250602] bind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4 (usb)<br><br>KERNEL[1144.251689] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0 (scsi)<br><br>KERNEL[1144.251774] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0 (scsi)<br><br>KERNEL[1144.251822] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/scsi_device/4:0:0:0 (scsi_device)<br><br>KERNEL[1144.251933] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/scsi_disk/4:0:0:0 (scsi_disk)<br><br>KERNEL[1144.252009] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/scsi_generic/sg2 (scsi_generic)<br><br>KERNEL[1144.252393] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/bsg/4:0:0:0 (bsg)<br><br>UDEV [1144.259793] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4 (usb)<br><br>UDEV [1144.261835] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0 (usb)<br><br>UDEV [1144.262732] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4 (scsi)<br><br>UDEV [1144.263715] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/scsi_host/host4 (scsi_host)<br><br>UDEV [1144.264976] bind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0 (usb)<br><br>UDEV [1144.268728] bind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4 (usb)<br><br>UDEV [1144.269850] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0 (scsi)<br><br>UDEV [1144.270851] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0 (scsi)<br><br>UDEV [1144.271941] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/scsi_device/4:0:0:0 (scsi_device)<br><br>UDEV [1144.272716] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/scsi_disk/4:0:0:0 (scsi_disk)<br><br>UDEV [1144.273540] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/bsg/4:0:0:0 (bsg)<br><br>UDEV [1144.273563] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/scsi_generic/sg2 (scsi_generic)<br><br>KERNEL[1145.985198] add /devices/virtual/bdi/8:16 (bdi)<br><br>UDEV [1145.987911] add /devices/virtual/bdi/8:16 (bdi)<br><br>KERNEL[1145.988867] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/block/sdb (block)<br><br>KERNEL[1145.989065] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb1 (block)<br><br>KERNEL[1145.989186] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb2 (block)<br><br>KERNEL[1145.989308] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb3 (block)<br><br>KERNEL[1145.989450] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb4 (block)<br><br>KERNEL[1145.989584] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb5 (block)<br><br>KERNEL[1145.990843] bind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0 (scsi)<br><br>UDEV [1146.031257] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/block/sdb (block)<br><br>UDEV [1146.035268] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb4 (block)<br><br>UDEV [1146.045437] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb1 (block)<br><br>UDEV [1146.046036] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb3 (block)<br><br>UDEV [1146.046869] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb2 (block)<br><br>UDEV [1146.051277] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb5 (block)<br><br>UDEV [1146.052469] bind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.4/4-1.4:1.0/host4/target4:0:0/4:0:0:0 (scsi)</p><p style="margin-bottom:0in;line-height:100%;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><br><br>This is what the Type-C connection reports on the front panel (w/o the supplemental power connection from the card to the expansion panel) when I attempt to hot switch from Type-A to C, even if I had un-mounted the partitions from the disks app GUI, The first event is unbind.<br><br><br>udevadm monitor<br><br>monitor will print the received events for:<br><br>UDEV - the event which udev sends out after rule processing<br><br>KERNEL - the kernel uevent<br><br><br>KERNEL[1460.229192] unbind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.2/4-1.2:1.0 (usb)<br><br>KERNEL[1460.229310] remove /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.2/4-1.2:1.0 (usb)<br><br>KERNEL[1460.230680] unbind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.2 (usb)<br><br>KERNEL[1460.230806] remove /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.2 (usb)<br><br>UDEV [1460.235695] unbind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.2/4-1.2:1.0 (usb)<br><br>UDEV [1460.236812] remove /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.2/4-1.2:1.0 (usb)<br><br>UDEV [1460.237925] unbind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.2 (usb)<br><br>UDEV [1460.238627] remove /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb4/4-1/4-1.2 (usb)<br><br>KERNEL[1460.434274] unbind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.2/3-1.2:1.0 (usb)<br><br>KERNEL[1460.434407] remove /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.2/3-1.2:1.0 (usb)<br><br>KERNEL[1460.436020] unbind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.2 (usb)<br><br>KERNEL[1460.436183] remove /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.2 (usb)<br><br>UDEV [1460.439331] unbind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.2/3-1.2:1.0 (usb)<br><br>UDEV [1460.443163] remove /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.2/3-1.2:1.0 (usb)<br><br>UDEV [1460.445660] unbind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.2 (usb)<br><br>UDEV [1460.446564] remove /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.2 (usb)<br><br><br>Here is what udev reports with the front extension panel disconnected from the PCI-e card and the drive is plugged into the expansion card's single Type-C connection.<br><br><br>udevadm monitor<br><br>monitor will print the received events for:<br><br>UDEV - the event which udev sends out after rule processing<br><br>KERNEL - the kernel uevent<br><br><br>KERNEL[93.288656] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3 (usb)<br><br>KERNEL[93.297154] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0 (usb)<br><br>KERNEL[93.297182] bind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3 (usb)<br><br>UDEV [93.303112] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3 (usb)<br><br>KERNEL[93.310552] add /module/usb_storage (module)<br><br>KERNEL[93.310602] add /bus/usb/drivers/usb-storage (drivers)<br><br>UDEV [93.311904] add /module/usb_storage (module)<br><br>UDEV [93.312259] add /bus/usb/drivers/usb-storage (drivers)<br><br>KERNEL[93.312655] add /module/uas (module)<br><br>UDEV [93.313198] add /module/uas (module)<br><br>KERNEL[93.324476] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4 (scsi)<br><br>KERNEL[93.324491] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/scsi_host/host4 (scsi_host)<br><br>KERNEL[93.324517] bind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0 (usb)<br><br>KERNEL[93.324525] add /bus/usb/drivers/uas (drivers)<br><br>UDEV [93.324646] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0 (usb)<br><br>UDEV [93.325326] add /bus/usb/drivers/uas (drivers)<br><br>KERNEL[93.325718] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0 (scsi)<br><br>KERNEL[93.325745] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0 (scsi)<br><br>KERNEL[93.325760] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/scsi_device/4:0:0:0 (scsi_device)<br><br>KERNEL[93.325772] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/scsi_disk/4:0:0:0 (scsi_disk)<br><br>KERNEL[93.325837] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/scsi_generic/sg2 (scsi_generic)<br><br>KERNEL[93.325898] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/bsg/4:0:0:0 (bsg)<br><br>UDEV [93.329778] bind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3 (usb)<br><br>UDEV [93.331051] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4 (scsi)<br><br>UDEV [93.332395] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/scsi_host/host4 (scsi_host)<br><br>UDEV [93.334102] bind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0 (usb)<br><br>UDEV [93.335352] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0 (scsi)<br><br>UDEV [93.336749] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0 (scsi)<br><br>UDEV [93.338326] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/scsi_device/4:0:0:0 (scsi_device)<br><br>UDEV [93.338504] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/scsi_disk/4:0:0:0 (scsi_disk)<br><br>UDEV [93.339426] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/scsi_generic/sg2 (scsi_generic)<br><br>UDEV [93.340162] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/bsg/4:0:0:0 (bsg)<br><br>KERNEL[94.516320] add /devices/virtual/bdi/8:16 (bdi)<br><br>UDEV [94.519016] add /devices/virtual/bdi/8:16 (bdi)<br><br>KERNEL[94.520794] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/block/sdb (block)<br><br>KERNEL[94.520944] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb1 (block)<br><br>KERNEL[94.521091] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb2 (block)<br><br>KERNEL[94.521209] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb3 (block)<br><br>KERNEL[94.521326] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb4 (block)<br><br>KERNEL[94.521431] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb5 (block)<br><br>KERNEL[94.523245] bind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0 (scsi)<br><br>UDEV [94.603863] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/block/sdb (block)<br><br>UDEV [94.611530] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb4 (block)<br><br>UDEV [94.700559] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb1 (block)<br><br>UDEV [94.716164] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb2 (block)<br><br>UDEV [94.731543] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb5 (block)<br><br>UDEV [94.737275] add /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0/block/sdb/sdb3 (block)<br><br>UDEV [94.738283] bind /devices/pci0000:00/0000:00:1c.1/0000:72:00.0/usb3/3-1/3-1.3/3-1.3:1.0/host4/target4:0:0/4:0:0:0 (scsi)<br><br>KERNEL[113.079306] add /devices/virtual/bdi/0:39 (bdi)<br><br>UDEV [113.083466] add /devices/virtual/bdi/0:39 (bdi)<br><br>Unfortunately the cable for connecting the supplementary power to the front expansion port was too short so I’m wondering if this is at all related to the system registering one voltage demand for the Type-C connection and not releasing that info and then re-probing for the increased voltage the SS port connection allows for.<br><br>Does anyone have any suggestions on how I can unwind some of this?<br><br>Perhaps sourcing a longer cable for connecting the expansion cards power to the slot might do the trick. I can't say for sure, but I don't recall this being an issue before the power issue.<span style="background-color:transparent"> </span><br></p>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div>Russell<br></div></div></div></div></div></div>