저는 노트북과 함께 사용하는 Epson Perfection 660 평판 스캐너를 가지고 있습니다. /var/log/syslog
삽입하면 이렇게 나옵니다 .
Dec 18 15:43:57 lap kernel: [ 31.868278] usb 6-2: new full-speed USB device number 2 using uhci_hcd
Dec 18 15:43:57 lap kernel: [ 32.033506] usb 6-2: New USB device found, idVendor=04b8, idProduct=0114
Dec 18 15:43:57 lap kernel: [ 32.033514] usb 6-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Dec 18 15:43:57 lap kernel: [ 32.033519] usb 6-2: Product: EPSON Scanner
Dec 18 15:43:57 lap kernel: [ 32.033524] usb 6-2: Manufacturer: EPSON
이제 내 데스크탑 컴퓨터에서 이 스캐너를 사용하고 싶습니다. 동일한 지침을 따랐지만 작동하지 않습니다. 문제는 유효한 USB 장치로 인식되지 않는다는 점입니다. 표시되지 않습니다 lsusb
. syslog에 다음이 표시됩니다.
Dec 18 15:31:34 desktop kernel: [ 390.193219] usb 3-14: new full-speed USB device number 18 using xhci_hcd
Dec 18 15:31:39 desktop kernel: [ 395.213900] usb 3-14: unable to read config index 0 descriptor/start: -110
Dec 18 15:31:39 desktop kernel: [ 395.213902] usb 3-14: can't read configurations, error -110
Dec 18 15:31:39 desktop kernel: [ 395.325902] usb 3-14: new full-speed USB device number 19 using xhci_hcd
Dec 18 15:31:44 desktop kernel: [ 400.346570] usb 3-14: unable to read config index 0 descriptor/start: -110
Dec 18 15:31:44 desktop kernel: [ 400.346572] usb 3-14: can't read configurations, error -110
Dec 18 15:31:45 desktop kernel: [ 400.458648] usb 3-14: new full-speed USB device number 20 using xhci_hcd
Dec 18 15:31:50 desktop kernel: [ 405.479280] usb 3-14: unable to read config index 0 descriptor/start: -110
Dec 18 15:31:50 desktop kernel: [ 405.479282] usb 3-14: can't read configurations, error -110
Dec 18 15:31:50 desktop kernel: [ 405.591352] usb 3-14: new full-speed USB device number 21 using xhci_hcd
Dec 18 15:31:55 desktop kernel: [ 410.611960] usb 3-14: unable to read config index 0 descriptor/start: -110
Dec 18 15:31:55 desktop kernel: [ 410.611962] usb 3-14: can't read configurations, error -110
Dec 18 15:31:55 desktop kernel: [ 410.611973] hub 3-0:1.0: unable to enumerate USB device on port 14
얼핏 보면 노트북은 UHCI를 사용하고 데스크탑은 XHCI를 사용합니다. 두 시스템 모두 Linux Mint 16, 커널 3.11.0-12 x86_64를 사용합니다. 어떤 USB 포트를 사용하든 동작은 동일합니다.
어떡해?