>>> Plugging them into the same port (!) on my device one of them is >>> recognized as SuperSpeed, the other as high speed ??? >>> (working on 4.14.129 LTS) >>> >>> From dmesg, the "faulty" one: >>> [ 530.585871] usb 1-2: new high-speed USB device number 4 using >>> xhci_hcd <<<<<<<<< HUH ???? >>> >> XHCI is not like EHCI. It needs no companion controller, as it serves >> all speeds. >> >> This is on a lower layer than ax88179. This comes from xhci_hcd. >> Is this a regression? >> > I don't think its a regression. > I can see the same on a 4.14.102. Next observation: After some - long - time (> 15 minutes) a hanging ping says: ping: sendto: Network is unreachable After this, without doing anything, i can start ping again and it works: $:~# ping 134.86.56.80 PING 134.86.56.80 (134.86.56.80): 56 data bytes ping: sendto: Network is unreachable $:~# ping 134.86.56.80 PING 134.86.56.80 (134.86.56.80): 56 data bytes 64 bytes from 134.86.56.80: seq=0 ttl=63 time=3.206 ms 64 bytes from 134.86.56.80: seq=1 ttl=63 time=0.662 ms Looks like a higher rate of transfers causes a stall or retries or whatever - but without any message i'm lost. I can reproduce this 100%. Someone there who has any advice what i can do to track this down? Best regards Carsten
