BTW, I have tested with two separate DA200 adapaters, they just behave in the same unpredicatble way disconnecting and connecting from time to time. D. On 09.05.2016 11:17, Greg KH wrote: > On Mon, May 09, 2016 at 11:05:34AM +0200, Daniel Duris wrote: >> Hi, >> >> this is an official DA200 Dell adapter powered/connected via USB-C >> (adapter offers 4 ports: USB3, ETH, HDMI and VGA). I don't have any >> other with ETH port available to test. > If you plug it into a powered USB-C hub (yeah, rare to find, I know), > does it work better? > > The fact that the hardware keeps reseting itself is a huge red flag that > it might be not be a software issue. > > Oh wait, do you have autosuspend enabled for this device? It might be > disconnecting itself... > > thanks, > > greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html