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impossible de faire fonctionner ma webcam



Bonjour à tous,

xawtv n'arrives pas à me connecter au descripteur de périférique /dev/video0

 xawtv -hwscan
This is xawtv-3.95.dfsg.1, running on Linux/x86_64 (2.6.18-4-amd64)
looking for available devices
port 73-73
    type : Xvideo, image scaler
    name : ATI Radeon Video Overlay

/dev/video0: Aucun espace disponible sur le périphérique

Bien sûr il y a de la place sur le périférique ou se trouve le répertoire /dev

 df -h
Sys. de fich.         Tail. Occ. Disp. %Occ. Monté sur
/dev/sda1              92G  4,1G   84G   5% /
tmpfs                 502M     0  502M   0% /lib/init/rw
udev                   10M  112K  9,9M   2% /dev
tmpfs                 502M     0  502M   0% /dev/shm
/dev/sda8              92G   13G   75G  15% /div
/dev/sda5              46G   26G   18G  60% /home
/dev/sda6              16G  521M   15G   4% /opt
/dev/sda9             9,2G  4,4G  4,4G  50% /var
/dev/sda10            274M   25M  235M  10% /var/log


Voilà je suis largué si vous pouviez m'aider...
Merci d'avance.

--
Benoît

Syslog :
----------------------------------------------------------------
Aug 15 19:40:22 venus kernel: hub 2-2:1.0: Cannot enable port 4.  Maybe the USB
cable is bad?
Aug 15 19:40:24 venus last message repeated 2 times
Aug 15 19:40:24 venus kernel: usb 2-2.4: new full speed USB device using ehci_hc
d and address 17
Aug 15 19:40:24 venus kernel: usb 2-2.4: configuration #1 chosen from 1 choice
Aug 15 19:40:24 venus kernel: drivers/media/video/ov511.c: USB OV511+ video devi
ce found
Aug 15 19:40:24 venus kernel: drivers/media/video/ov511.c: model: Generic Camera
 (no ID)
Aug 15 19:40:24 venus NetworkManager: <debug info>^I[1218822024.528495] nm_hal_d
evice_added (): New device added (hal udi is '/org/freedesktop/Hal/devices/usb_d
evice_5a9_a511_noserial').
Aug 15 19:40:24 venus NetworkManager: <debug info>^I[1218822024.624452] nm_hal_d
evice_added (): New device added (hal udi is '/org/freedesktop/Hal/devices/usb_d
evice_ffffffff_ffffffff_noserial').
Aug 15 19:40:24 venus kernel: drivers/media/video/ov511.c: Sensor is an OV7620
Aug 15 19:40:24 venus kernel: drivers/media/video/ov511.c: Device at usb-0000:00
:02.1-2.4 registered to minor 0
Aug 15 19:40:24 venus NetworkManager: <debug info>^I[1218822024.763064] nm_hal_d
evice_added (): New device added (hal udi is '/org/freedesktop/Hal/devices/usb_d
evice_5a9_a511_noserial_video4linux').
Aug 15 19:40:24 venus NetworkManager: <debug info>^I[1218822024.807788] nm_hal_d
evice_added (): New device added (hal udi is '/org/freedesktop/Hal/devices/usb_d
evice_5a9_a511_noserial_usbraw').
Aug 15 19:40:26 venus kernel: usb 2-2.4: USB disconnect, address 17
Aug 15 19:40:26 venus NetworkManager: <debug info>^I[1218822026.957223] nm_hal_d
evice_removed (): Device removed (hal udi is '/org/freedesktop/Hal/devices/usb_d
evice_5a9_a511_noserial_video4linux').
Aug 15 19:40:26 venus NetworkManager: <debug info>^I[1218822026.958576] nm_hal_d
evice_removed (): Device removed (hal udi is '/org/freedesktop/Hal/devices/usb_d
evice_5a9_a511_noserial_usbraw').
Aug 15 19:40:26 venus NetworkManager: <debug info>^I[1218822026.963779] nm_hal_d
evice_removed (): Device removed (hal udi is '/org/freedesktop/Hal/devices/usb_d
evice_ffffffff_ffffffff_noserial').
Aug 15 19:40:26 venus NetworkManager: <debug info>^I[1218822026.967198] nm_hal_d
evice_removed (): Device removed (hal udi is '/org/freedesktop/Hal/devices/usb_d
evice_5a9_a511_noserial').
Aug 15 19:40:27 venus kernel: usb 2-2.4: new full speed USB device using ehci_hc
d and address 18
Aug 15 19:40:27 venus kernel: usb 2-2.4: configuration #1 chosen from 1 choice
Aug 15 19:40:27 venus kernel: drivers/media/video/ov511.c: USB OV511+ video devi
ce found
Aug 15 19:40:27 venus kernel: drivers/media/video/ov511.c: model: Generic Camera
 (no ID)
Aug 15 19:40:27 venus NetworkManager: <debug info>^I[1218822027.279380] nm_hal_d
evice_added (): New device added (hal udi is '/org/freedesktop/Hal/devices/usb_d
evice_5a9_a511_noserial').
Aug 15 19:40:27 venus NetworkManager: <debug info>^I[1218822027.365864] nm_hal_d
evice_added (): New device added (hal udi is '/org/freedesktop/Hal/devices/usb_d
evice_ffffffff_ffffffff_noserial').
Aug 15 19:40:27 venus kernel: drivers/media/video/ov511.c: Sensor is an OV7620
Aug 15 19:40:27 venus kernel: drivers/media/video/ov511.c: Device at usb-0000:00
:02.1-2.4 registered to minor 0
Aug 15 19:40:27 venus NetworkManager: <debug info>^I[1218822027.510771] nm_hal_d
evice_added (): New device added (hal udi is '/org/freedesktop/Hal/devices/usb_d
evice_5a9_a511_noserial_video4linux').
Aug 15 19:40:27 venus NetworkManager: <debug info>^I[1218822027.553399] nm_hal_d
evice_added (): New device added (hal udi is '/org/freedesktop/Hal/devices/usb_d
evice_5a9_a511_noserial_usbraw').
------------------------------------------

Je débranche, voici ce que dit syslog quand je rebranche (le câbe USB):
------------------------------------------------------------------------
Aug 15 19:44:47 venus kernel: usb 2-2.4: new full speed USB device
using ehci_hcd and address 28
Aug 15 19:44:47 venus kernel: usb 2-2.4: configuration #1 chosen from 1 choice
Aug 15 19:44:47 venus kernel: drivers/media/video/ov511.c: USB OV511+
video device found
Aug 15 19:44:47 venus kernel: drivers/media/video/ov511.c: model:
Generic Camera (no ID)
Aug 15 19:44:47 venus NetworkManager: <debug
info>^I[1218822287.385815] nm_hal_device_added (): New device added
(hal udi is '/org/freedesktop/Hal/devices/usb_device_5a9_a511_noserial').
Aug 15 19:44:47 venus NetworkManager: <debug
info>^I[1218822287.465858] nm_hal_device_added (): New device added
(hal udi is '/org/freedesktop/Hal/devices/usb_device_ffffffff_ffffffff_noserial').
Aug 15 19:44:47 venus kernel: drivers/media/video/ov511.c: Sensor is an OV7620
Aug 15 19:44:47 venus kernel: drivers/media/video/ov511.c: Device at
usb-0000:00:02.1-2.4 registered to minor 0
Aug 15 19:44:47 venus NetworkManager: <debug
info>^I[1218822287.617249] nm_hal_device_added (): New device added
(hal udi is '/org/freedesktop/Hal/devices/usb_device_5a9_a511_noserial_video4linux').
Aug 15 19:44:47 venus NetworkManager: <debug
info>^I[1218822287.657916] nm_hal_device_added (): New device added
(hal udi is '/org/freedesktop/Hal/devices/usb_device_5a9_a511_noserial_usbraw').


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