а логи?
июн 15 15:01:39 f28_xfce_64.ovirt.local systemd[1]: /usr/lib/systemd/system/virtlockd-admin.socket:7: Unknown lvalue 'Server' in section 'Socket'
июн 15 15:04:23 f28_xfce_64.ovirt.local kernel: usb 1-2.1: new full-speed USB device number 8 using ehci-pci
июн 15 15:04:23 f28_xfce_64.ovirt.local kernel: usb 1-2.1: device descriptor read/64, error -32
июн 15 15:04:23 f28_xfce_64.ovirt.local kernel: usb 1-2.1: device descriptor read/64, error -32
июн 15 15:04:24 f28_xfce_64.ovirt.local kernel: usb 1-2.1: new full-speed USB device number 9 using ehci-pci
июн 15 15:04:24 f28_xfce_64.ovirt.local kernel: usb 1-2.1: device descriptor read/64, error -32
июн 15 15:04:24 f28_xfce_64.ovirt.local kernel: usb 1-2.1: device descriptor read/64, error -32
июн 15 15:04:24 f28_xfce_64.ovirt.local kernel: usb 1-2-port1: attempt power cycle
июн 15 15:04:25 f28_xfce_64.ovirt.local kernel: usb 1-2.1: new full-speed USB device number 10 using ehci-pci
июн 15 15:04:25 f28_xfce_64.ovirt.local kernel: usb 1-2.1: device not accepting address 10, error -32
июн 15 15:04:25 f28_xfce_64.ovirt.local kernel: usb 1-2.1: new full-speed USB device number 11 using ehci-pci
июн 15 15:04:25 f28_xfce_64.ovirt.local kernel: usb 1-2.1: device not accepting address 11, error -32
июн 15 15:04:25 f28_xfce_64.ovirt.local kernel: usb 1-2-port1: unable to enumerate USB device