On Tue, Apr 07, 2015 at 10:27:15PM +0200, Matthias Nagel wrote: > Obeying to a wish made by Greg Kroah-Hartman I hereby send my bug > report [1] to this list. I do not include the attachments as the can > be found at [1]. The description: Please send the attachments, no one wants to dig for web links :( > The kernel repeatedly reports disconnected event followed by an > immediate connect event for any USB device. Let's call this a > "re-connection event". Sometimes this re-connection events occur in a > burst with dozens in a row before the connection becomes "stable" > again. If at a specific moment in time one device is affected all > other devices might not, but later another device shows the same > problem. This effects all device classes, but the interval between > those re-connection events seems to depend on the device class. > This really sounds like some broken hardware as there's nothing that the kernel can do to disconnect/reconnect a device like this. Given that your hardware works fine in a different machine, I would blame this host controller / internal hub / pci board / motherboard / power supply or some part of that chain. Best of luck, 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