[ubuntu] USB won't restart :(

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http://ubuntuforums.org – My USB-subsystem ist not really that stable I wanted it to be: Sometimes it just stops working (mostly after I locked the screen under GNOME). Now I found recommendations how to restart the USB-subsystem without restarting the whole system: Code: sudo /etc/init.d/udev restart it made the following output Code: baruch@baruch-laptop:~$ sudo /etc/init.d/udev restart  * Stopping kernel event manager...                                                                                                            [ OK ]  * Starting kernel event manager...                                                                                                            [ OK ] baruch@baruch-laptop:~$ without solving the problem. The USB-subsystem still accepted no UBS-devices without restart. Can somebody help me, plz :( :confused: (Hardware)