I have a USB Lenovo ThinkPad Keyboard with TrackPoint (vendor:product 17ef:6009), and a ThinkPad Yoga 12 (Broadwell version) with OneLink Pro dock. If I plug the keyboard/mouse directly into the laptop, it works fine. If I plug it into the dock, the keyboard works fine; however, the mouse works for a fraction of a second and then stops working. (Both the TrackPoint and its mouse buttons do not work through the dock.) The dock shows up as four of: 2109:0812 VIA Labs, Inc. VL812 Hub At first, I wondered if USB autosuspend might have something to do with this. However, I confirmed that the keyboard/mouse itself didn't have autosuspend turned on in the first place, and while the hubs did, turning off autosuspend for *all* USB devices did not fix the problem. Looking at the sysfs path for the input device as shown in dmesg, /sys/devices/pci0000\:00/0000\:00\:14.0/usb2/2-3/2-3.1/2-3.1.2/2-3.1.2\:1.1/supports_autosuspend did say "1". However, the device didn't actually appear to have autosuspend *enabled*. I'd appreciate any suggestions for how to debug this issue. - Josh Triplett -- 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
