Eu tenho um Microsoft SideWinder X4 usado algumas semanas atrás, e depois de alguns dias usando ele, o teclado começou a cortar energia aleatoriamente com bastante frequência. O proprietário anterior não teve nenhum problema com isso.
Estou executando o Xubuntu 16.04 LTS em um HP Pavilion g6-2252so.
Aqui está um trecho de kern.log:
Jan 2 22:37:11 milokone kernel: [ 5344.173563] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:37:33 milokone kernel: [ 5366.810694] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:38:35 milokone kernel: [ 5428.757979] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:38:35 milokone kernel: [ 5428.958152] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:39:20 milokone kernel: [ 5473.212059] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:39:31 milokone kernel: [ 5484.152690] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:39:35 milokone kernel: [ 5488.780983] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:41:20 milokone kernel: [ 5593.482215] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:42:18 milokone kernel: [ 5651.060845] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:42:22 milokone kernel: [ 5655.456904] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:42:56 milokone kernel: [ 5689.658948] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:43:46 milokone kernel: [ 5739.953068] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:43:47 milokone kernel: [ 5740.153302] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:46:51 milokone kernel: [ 5924.625932] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:46:51 milokone kernel: [ 5924.825883] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:47:44 milokone kernel: [ 5977.052123] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:49:32 milokone kernel: [ 6085.457408] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:50:23 milokone kernel: [ 6136.507478] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:50:23 milokone kernel: [ 6136.707555] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd Jan 2 22:51:27 milokone kernel: [ 6200.946528] usb 7-1.2: reset full-speed USB device number 3 using xhci_hcd
Como você pode ver, isso acontece com bastante frequência.