Depois de um tempo, a webcam integrada é desconectada

Question

Quando eu inicializo meu Ubuntu 12.04 eu posso ver a saída da minha webcam através do queijo, skype, etc ... mas depois ele congela e no dmesg ele mostra que está desconectado e desaparece do lsusb. Também o / dev / video * desaparece.

Estava funcionando antes, mas por algum motivo agora eu tenho esse problema. Acho que foi uma atualização ...

Deixe-me saber se você precisar de mais informações.

obrigado antecipadamente.

Aqui estão algumas saídas.

dmesg:

~$ dmesg | grep video
[    1.246713] pci 0000:00:02.0: Boot video device
[   31.964037] Linux video capture interface: v2.00
[   31.964925] uvcvideo: Found UVC 1.00 device HP Webcam-50 (05c8:0222)
[   31.972137] usbcore: registered new interface driver uvcvideo

~$ dmesg | grep Webcam
[   31.964925] uvcvideo: Found UVC 1.00 device HP Webcam-50 (05c8:0222)
[   31.971458] input: HP Webcam-50 as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.0/input/input6

linha dmesg que aparece quando o problema ocorre:

Nov 17 18:46:39 XXXX kernel: [  146.380681] usb 2-1.5: USB disconnect, device number 3

linha que desaparece após o problema em lsusb:

Bus 002 Device 003: ID 05c8:0222 Cheng Uei Precision Industry Co., Ltd (Foxlink)

saída do luvcview:

~$ luvcview
luvcview 0.2.6

SDL information:
  Video driver: x11
  A window manager is available
Device information:
  Device path:  /dev/video0
ERROR opening V4L interface: No such file or directory

Nenhum arquivo video0.

~$ ls -lha /dev/video*
ls: cannot access /dev/video*: No such file or directory
~$ ls /dev/video*
ls: cannot access /dev/video*: No such file or directory

saída ker.log:

~$ more /var/log/kern.log | grep video
Nov 17 08:06:25 bones-lp kernel: [49207.763326] PM: resume of drv:uvcvideo dev:2-1.5:1.0 complete after 446.656 msecs
Nov 17 08:06:25 bones-lp kernel: [49207.763329] PM: resume of drv:uvcvideo dev:2-1.5:1.1 complete after 446.620 msecs
Nov 17 08:06:25 bones-lp kernel: [49208.704020] video LNXVIDEO:00: Restoring backlight state
Nov 17 13:59:19 bones-lp kernel: [65285.984306] PM: resume of drv:uvcvideo dev:2-1.5:1.1 complete after 177.736 msecs
Nov 17 13:59:19 bones-lp kernel: [65285.984334] PM: resume of drv:uvcvideo dev:2-1.5:1.0 complete after 177.808 msecs
Nov 17 13:59:19 bones-lp kernel: [65287.193393] video LNXVIDEO:00: Restoring backlight state
Nov 17 15:49:43 bones-lp kernel: [    1.242691] pci 0000:00:02.0: Boot video device
Nov 17 15:49:43 bones-lp kernel: [   34.506239] Linux video capture interface: v2.00
Nov 17 15:49:43 bones-lp kernel: [   34.506715] uvcvideo: Found UVC 1.00 device HP Webcam-50 (05c8:0222)
Nov 17 15:49:43 bones-lp kernel: [   34.514181] usbcore: registered new interface driver uvcvideo
Nov 17 16:57:35 bones-lp kernel: [ 4104.806501] usbcore: deregistering interface driver uvcvideo
Nov 17 16:57:35 bones-lp kernel: [ 4104.907525] Linux video capture interface: v2.00
Nov 17 16:57:35 bones-lp kernel: [ 4104.916846] usbcore: registered new interface driver uvcvideo
Nov 17 17:00:30 bones-lp kernel: [ 4279.157010] usbcore: deregistering interface driver uvcvideo
Nov 17 17:06:18 bones-lp kernel: [ 4627.158181] Linux video capture interface: v2.00
Nov 17 17:06:39 bones-lp kernel: [ 4647.411770] usbcore: registered new interface driver uvcvideo
Nov 17 17:26:49 bones-lp kernel: [ 5855.992986] usbcore: deregistering interface driver uvcvideo
Nov 17 17:27:14 bones-lp kernel: [ 5880.845078] usbcore: registered new interface driver uvcvideo
Nov 17 18:44:48 bones-lp kernel: [    1.246713] pci 0000:00:02.0: Boot video device
Nov 17 18:44:48 bones-lp kernel: [   31.964037] Linux video capture interface: v2.00
Nov 17 18:44:48 bones-lp kernel: [   31.964925] uvcvideo: Found UVC 1.00 device HP Webcam-50 (05c8:0222)
Nov 17 18:44:48 bones-lp kernel: [   31.972137] usbcore: registered new interface driver uvcvideo

    

Answer 1

Eu acho que a webcam está realmente morta! Isso só aconteceu comigo também por nenhuma razão no meu notebook Compaq CQ100, não fiz nenhuma atualização ou nada! Encontrei este tópico googling para o mesmo problema ..

Sempre que eu tento inicializar a câmera, o LED ao lado dele acende brevemente e apaga. Sem vídeo. Tentando novamente o aplicativo (guvcview) me diz que não há câmera detectada. Olhando para a saída do dmesg, posso ver que a câmera apenas se desconecta assim que eu tento iniciá-la.

sudo rmmod uvcvideo && sudo modprobe uvcvideo

traz /dev/video0 de volta, mas continua falhando ...

[   74.525794] usb 1-4: USB disconnect, device number 3
[   74.526429] uvcvideo: Failed to resubmit video URB (-19).
[   74.724449] hub 1-0:1.0: unable to enumerate USB device on port 4
[   74.996089] usb 1-4: new high-speed USB device number 5 using ehci-pci
[   75.160048] usb 1-4: New USB device found, idVendor=10f1, idProduct=1a13
[   75.160063] usb 1-4: New USB device strings: Mfr=2, Product=1, SerialNumber=0
[   75.160074] usb 1-4: Product: HP Webcam-50
[   75.160084] usb 1-4: Manufacturer: importek
[   75.162549] uvcvideo: Found UVC 1.00 device HP Webcam-50 (10f1:1a13)
[   75.200842] input: HP Webcam-50 as /devices/pci0000:00/0000:00:1d.7/usb1/1-4/1-4:1.0/input/input11
[  144.715843] usbcore: deregistering interface driver uvcvideo
[  150.517385] uvcvideo: Found UVC 1.00 device HP Webcam-50 (10f1:1a13)
[  150.555981] input: HP Webcam-50 as /devices/pci0000:00/0000:00:1d.7/usb1/1-4/1-4:1.0/input/input12
[  150.561353] usbcore: registered new interface driver uvcvideo
[  150.561364] USB Video Class driver (1.1.1)