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: 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. For example: - HID input devices (mouse, keyboard) are re-connected once in 15 minutes - USB hard drives and USB flash sticks are re-connected approx. every 5 minutes - my smart phone (i9300) is re-connected every 30 seconds if in ptp mode and every 5 minutes if in mtp mode - my usb flad-bed scanner (Canon N650U) is re-connected every 30 seconds It is not a cabling problem. It is not a problem of the devices, because they all work at a second computer that also runs Linux. Hence, all devices are supported by Linux. It cannot be a problem of the motherboard, because the same devices at the same computer do work under Windows. The only difference is that the computer that shows the symptoms is rather new and has a xHCI controller while the other computer has only an eHCI controller. Matthias [1] https://bugzilla.kernel.org/show_bug.cgi?id=96291 -- Matthias Nagel Parkstraße 27, 76131 Karlsruhe, Deuschland Festnetz: +49-721-96869289, Mobil: +49-151-15998774 e-Mail: matthias.h.nagel@xxxxxxxxx, Skype: nagmat84 -- 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
