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1b1ed1a
(Get the code!)
@seb128:
Although he mentions audio and that other issue mentions audio I don't believe them to be the same issue. Specifically that issue deals with USB Audio devices that contain a DFU endpoint. He doesn't have a USB audio device contained here.
@grofaty:
As long as you followed the steps properly and fwupd wasn't running when you collected the second dmesg (dmesg_2.txt) to me it looks like there is a hardware or kernel issue with your machine causing the USB device to drop off the bus continually. Since not caused by fwupd, there's not much fwupd can do in this instance. It is reporting new USB devices just like the kernel is (which is causing it to check for updates every time a new device is reported).
This is exacerbated by the fact that the combination of gnome-software 3.20.x and fwupd 0.7.0 will check for updates every time a USB device is hotplugged.
More information about that is here:
https:/
In order to resolve that, Ubuntu would need to move to gnome-software >= 3.21.0 and fwupd >= 0.7.1.