이 문제는 4.8 릴리스 후보에서 발생했으며 커널이 안정되면 해결될 것이라고 생각했지만 여전히 이 문제가 발생합니다. 커널이 USB 컨트롤러를 무작위로 재설정하거나 이를 달성하기 위해 무언가를 수행하는 것 같습니다. 기본적으로 모든 USB 장치는 무작위로 작동을 멈추고 장치를 다시 가져오려면 시스템을 강제로 다시 시작한 다음 다시 시작하기 전에 5분 정도 작동되도록 해야 합니다. 시스템을 사용할 수 있도록 4.7.6으로 롤백했는데 4.8에서는 USB를 사용할 생각이 없는 것 같습니다. 이것이 시스템 로그에서 발견한 내용인데, 이것이 문제라고 생각합니다.
Oct 2 22:23:31 user-desktop kernel: [ 143.307247] ohci-pci 0000:00:12.0: HcDoneHead not written back; disabled
Oct 2 22:23:31 user-desktop kernel: [ 143.307251] ohci-pci 0000:00:12.0: HC died; cleaning up
Oct 2 22:23:31 user-desktop kernel: [ 143.307292] usb 10-1: USB disconnect, device number 2
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) config/udev: removing device Logitech G700s Rechargeable Gaming Mouse
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) evdev: Logitech G700s Rechargeable Gaming Mouse: Close
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) UnloadModule: "evdev"
Oct 2 22:23:31 user-desktop acpid: input device has been disconnected, fd 4
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) config/udev: removing device Logitech G700s Rechargeable Gaming Mouse
Oct 2 22:23:31 user-desktop pulseaudio[804]: Got POLLNVAL from ALSA
Oct 2 22:23:31 user-desktop pulseaudio[804]: Could not recover from POLLERR|POLLNVAL|POLLHUP with snd_pcm_prepare(): No such device
Oct 2 22:23:31 user-desktop kernel: [ 143.427525] usb 10-2: USB disconnect, device number 3
Oct 2 22:23:31 user-desktop gnome-session[720]: (gnome-settings-daemon:778): media-keys-plugin-WARNING **: Unable to get default sink
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) evdev: Logitech G700s Rechargeable Gaming Mouse: Close
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) UnloadModule: "evdev"
Oct 2 22:23:31 user-desktop acpid: input device has been disconnected, fd 15
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) config/udev: removing device Logitech Logitech G933 Gaming Wireless Headset
Oct 2 22:23:31 user-desktop kernel: [ 143.483518] usb 10-4: USB disconnect, device number 4
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) evdev: Logitech Logitech G933 Gaming Wireless Headset: Close
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) UnloadModule: "evdev"
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) config/udev: removing device Logitech USB Receiver
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) evdev: Logitech USB Receiver: Close
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) UnloadModule: "evdev"
Oct 2 22:23:31 user-desktop acpid: input device has been disconnected, fd 21
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) config/udev: removing device Logitech USB Receiver
Oct 2 22:23:31 user-desktop kernel: [ 143.623574] usb 10-5: USB disconnect, device number 5
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) evdev: Logitech USB Receiver: Close
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) UnloadModule: "evdev"
Oct 2 22:23:31 user-desktop acpid: input device has been disconnected, fd 22
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) config/udev: removing device Logitech Gaming Keyboard G910
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) evdev: Logitech Gaming Keyboard G910: Close
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) UnloadModule: "evdev"
Oct 2 22:23:31 user-desktop acpid: input device has been disconnected, fd 23
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) config/udev: removing device Logitech Gaming Keyboard G910
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) evdev: Logitech Gaming Keyboard G910: Close
Oct 2 22:23:31 user-desktop gdm-Xorg-:0[701]: (II) UnloadModule: "evdev"