Hi Mathias, I am here on Linux-v5.11-10201-gc03c21ba6f4e. I see a lot xhci-resets in my dmesg-log: root# LC_ALL=C dmesg -T | grep 'usb 4-1: reset SuperSpeed Gen 1 USB device number 2 using xhci_hcd' | wc -l 75 This is what I have: root# lsusb -s 004:001 Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub root# lsusb -s 004:002 Bus 004 Device 002: ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge My external USB 3.0 HDD contains the partition with my Debian-system and is attached to the above xhci bus/device. Can you enlighten what this means? Is this a known issue? Is there a fix around? BTW, in which Git tree is the xhci development happening? Can you point me to it? I am attaching my linux-config and full dmesg-log. Also I have attached outputs of: $ sudo lsusb -vvv -d 1d6b:0003 $ sudo lsusb -vvv -d 174c:55aa If you need further information, please let me know. Thanks. Regards, - Sedat -