On Friday 29 July 2005 9:37 pm, Chris Jones wrote: > Hi, > > I'm running FC4 on a laptop been experiencing usb problems since the last > round of FC4 updates. Basically the symptoms are that if I plug in my usb > mouse, which has worked find up to this point, the system goes into a cycle > of 100% cpu usage for a few seconds, which then stops for a period and then > restarts. The mouse does not work (It might for a few seconds but then > stops). Thankfully the touchpad works OK... > > Does anyone else have this problem ? Any suggestions what to do would be > greatfully received as this is rather annoying. I've just checked my system log, and found the following which I guess is the problem. Jul 29 21:24:11 localhost hal.hotplug[4893]: DEVPATH is not set (subsystem input) Jul 29 21:24:13 localhost kernel: usb 2-1: new low speed USB device using uhci_hcd and address 56 Jul 29 21:24:13 localhost kernel: input: USB HID v1.00 Mouse [1241:1111] on usb-0000:00:1d.0-1 Jul 29 21:24:13 localhost hal.hotplug[4962]: DEVPATH is not set (subsystem input) Jul 29 21:24:13 localhost kernel: usb 2-1: USB disconnect, address 56 Jul 29 21:24:14 localhost hal.hotplug[5003]: DEVPATH is not set (subsystem input) Jul 29 21:24:14 localhost kernel: usb 2-1: new low speed USB device using uhci_hcd and address 57 Jul 29 21:24:14 localhost kernel: input: USB HID v1.00 Mouse [1241:1111] on usb-0000:00:1d.0-1 Jul 29 21:24:14 localhost hal.hotplug[5017]: DEVPATH is not set (subsystem input) Jul 29 21:24:33 localhost kernel: usb 2-1: USB disconnect, address 57 OK, so what should I do to fix this. Many thanks in advance. Chris > -- > +--------------------------------------------------------------+ > > | Dr Chris R Jones work : +44 (0)1223 337324 | > | HEP Group (rm 882) fax : +44 (0)1223 353920 | > | Cavendish Laboratory, home : +44 (0)1223 510711 | > | Madingley Road, mobile : +44 (0)7900 564763 | > | Cambridge, CB3 0HE email : jonesc@xxxxxxxxxxxxxxxxx | > > +--------------------------------------------------------------+ -- +--------------------------------------------------------------+ | Dr Chris R Jones work : +44 (0)1223 337324 | | HEP Group (rm 882) fax : +44 (0)1223 353920 | | Cavendish Laboratory, home : +44 (0)1223 510711 | | Madingley Road, mobile : +44 (0)7900 564763 | | Cambridge, CB3 0HE email : jonesc@xxxxxxxxxxxxxxxxx | +--------------------------------------------------------------+