Am Donnerstag, den 07.11.2019, 14:52 +0100 schrieb Jean Delvare: > On Thu, 7 Nov 2019 14:39:41 +0100, Jean Delvare wrote: > > On Wed, 23 Oct 2019 17:20:16 +0300, Laurent Pinchart wrote: > > > Is this before or after the uvcvideo driver gets involved ? One easy way > > > to check is to move the uvcvideo.ko module out of the way so that it > > > doesn't get loaded automatically (or just blacklist it in > > > /etc/modprobe.d/) and then plug the camera. > > > > I did as you suggested and it turns out that the "reset high-speed USB > > device" messages are not printed originally, they start being printed > > right after the uvcvideo kernel driver gets loaded. So that would be a > > problem with the uvcvideo driver? > > > > When unloading the uvcvideo driver, there's one more "reset high-speed > > USB device" message and then no more. > > One more data point: the log flood happens when the uvcvideo driver is > loaded but the webcam is unused. If I start e.g. cheese, it takes a > long time to start but once started, the log flood stops. As soon as I > stop cheese, the log flood starts again. > Hi, try usbcore.autosuspend=-1 on the kernel command line. Regards Oliver
