On 19/09/12 21:00, Alan Stern wrote: > It would be good if you could determine for certain which device has > the problem. Maybe run some tests where you use only the headset or > only the webcam. I spent time trying to reproduce problems with only the headset attached, with no luck. Then the same with the camera, no luck. Then with both, and boom, it failed rather quickly. I uploaded a log where you can see all the output from this. Even the mouse went down during this failure. After a reboot, I tried again, and with both I again got it to fail rather quickly, though this time the "cannot submit urb" was the only error message. Then I noticed something strange: guvcview reported it could no longer open the mic on the headset, whereas with skype it was still usable. Both could still display video and record from the mic on the camera. Then I tried changing the sampling rate on the headset in guvcview (was wondering if I remember correctly and that was the problem), and upon trying to start the recording, I lost (at least) my mouse again. Attached that log, too. One way to reproduce this seems to be to start calls on skype, and disconnect them from my side. Things then go bonkers at the moment of the disconnect. I've tried to reproduce this on Windows to see if it wasn't a hardware problem, but failed. (I suppose it could still be hardware problem with the Windows drivers having workarounds, of course) > Also, it might help if you run your tests with CONFIG_USB_DEBUG > enabled. Once we know a little more about what's going on, I may ask > you to capture a usbmon trace showing an example of the failure. I attached logs from the two reproductions of the problem, with CONFIG_USB_DEBUG enabled, in bugzilla. -- GCP -- 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
