Same error with v4.19-rc2. I run apport-collect with v4.19, it create only two posts after you.
[ 98.377153] usb 1-5: new high-speed USB device number 5 using xhci_hcd [ 98.504474] usb 1-5: config 1 interface 1 altsetting 0 bulk endpoint 0x1 has invalid maxpacket 64 [ 98.504482] usb 1-5: config 1 interface 1 altsetting 0 bulk endpoint 0x81 has invalid maxpacket 64 [ 98.504873] usb 1-5: New USB device found, idVendor=0e41, idProduct=414d, bcdDevice= 0.00 [ 98.504878] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 98.504881] usb 1-5: Product: POD HD500 [ 98.504885] usb 1-5: Manufacturer: Line 6 [ 98.527466] snd_usb_podhd 1-5:1.0: Line 6 POD HD500 found [ 98.528210] snd_usb_podhd 1-5:1.0: Line 6 POD HD500 now attached [ 98.528242] snd_usb_podhd 1-5:1.1: Line 6 POD HD500 found [ 98.528244] usb 1-5: selecting invalid altsetting 1 [ 98.528246] snd_usb_podhd 1-5:1.1: set_interface failed [ 98.528250] snd_usb_podhd 1-5:1.1: Line 6 POD HD500 now disconnected [ 98.528257] snd_usb_podhd: probe of 1-5:1.1 failed with error -22 [ 98.528271] usbcore: registered new interface driver snd_usb_podhd I bought that device when I used 14.04 KXStudio with kernel v3.14 and error was present there. I start a thread at https://ubuntuforums.org/showthread.php?t=2385101. After Temüjin answer i install Ubuntu Release with kernel v4.15 - Kubuntu 18.04? but still no luck with POD HD500. ** Tags added: kernel-bug-exists-upstream ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1790595 Title: Line 6 POD HD500 driver fault To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1790595/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
