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paulwoisard

[RESOLU] Problème webcam non détectée par cheese ou skype

Bonjour,

Ma webcam ne fonctionne pas, sur cheese et sur skype.

j'ai lancé quelques commandes :

~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

~$ lsmod | grep uvcvideo
uvcvideo               90112  0
videobuf2_vmalloc      16384  1 uvcvideo
videobuf2_v4l2         28672  1 uvcvideo
videobuf2_core         36864  2 uvcvideo,videobuf2_v4l2
videodev              176128  4 uvcvideo,v4l2_common,videobuf2_core,videobuf2_v4l2
media                  24576  2 uvcvideo,videodev

~$ ls /dev/video*
/dev/video0

~$ sudo mknod /dev/video0 c 81 0
mknod: /dev/video0: Le fichier existe

~$ sudo chmod 666 /dev/video0 

~$ sudo ln -s /dev/video0 /dev/video

~$ guvcview
GUVCVIEW: version 2.0.2
V4L2_CORE: ERROR opening V4L interface: Aucun périphérique ou adresse
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.

~$ lspci
00:00.0 RAM memory: NVIDIA Corporation MCP65 Memory Controller (rev a3)
00:01.0 ISA bridge: NVIDIA Corporation MCP65 LPC Bridge (rev a3)
00:01.1 SMBus: NVIDIA Corporation MCP65 SMBus (rev a1)
00:01.3 Co-processor: NVIDIA Corporation MCP65 SMU (rev a1)
00:02.0 USB controller: NVIDIA Corporation MCP65 USB 1.1 OHCI Controller (rev a3)
00:02.1 USB controller: NVIDIA Corporation MCP65 USB 2.0 EHCI Controller (rev a3)
00:06.0 Ethernet controller: NVIDIA Corporation MCP65 Ethernet (rev a3)
00:07.0 Audio device: NVIDIA Corporation MCP65 High Definition Audio (rev a1)
00:08.0 PCI bridge: NVIDIA Corporation MCP65 PCI bridge (rev a1)
00:09.0 IDE interface: NVIDIA Corporation MCP65 IDE (rev a1)
00:0a.0 IDE interface: NVIDIA Corporation MCP65 SATA Controller (rev a3)
00:0b.0 PCI bridge: NVIDIA Corporation MCP65 PCI Express bridge (rev a1)
00:0c.0 PCI bridge: NVIDIA Corporation MCP65 PCI Express bridge (rev a1)
00:0d.0 PCI bridge: NVIDIA Corporation MCP65 PCI Express bridge (rev a1)
00:0e.0 PCI bridge: NVIDIA Corporation MCP65 PCI Express bridge (rev a1)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
03:00.0 Ethernet controller: Qualcomm Atheros AR242x / AR542x Wireless Network Adapter (PCI-Express) (rev 01)
05:00.0 VGA compatible controller: NVIDIA Corporation G86M [GeForce 8400M GS] (rev a1)
07:05.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05)
07:05.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22)
07:05.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 12)
07:05.3 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 12)

~$ dmesg | grep video
[   21.300571] Linux video capture interface: v2.00
[   22.528551] uvcvideo: Found UVC 1.00 device HP Webcam (0408:030c)
[   22.533134] usbcore: registered new interface driver uvcvideo
[  505.408969] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) drbg ansi_cprng ctr ccm nvidia_uvm(POE) nvidia(POE) uvcvideo videobuf2_vmalloc arc4 videobuf2_memops videobuf2_v4l2 snd_hda_codec_conexant videobuf2_core snd_hda_codec_generic v4l2_common videodev ath5k snd_hda_intel media snd_hda_codec snd_hda_core ath mac80211 snd_hwdep kvm_amd snd_pcm hp_wmi kvm sparse_keymap snd_seq_midi cfg80211 snd_seq_midi_event snd_rawmidi irqbypass snd_seq snd_seq_device r852 input_leds snd_timer joydev sm_common serio_raw drm nand k8temp snd edac_mce_amd nand_ecc soundcore edac_core nand_bch bch r592 nand_ids mtd memstick shpchp wmi i2c_nforce2 mac_hid squashfs binfmt_misc parport_pc ppdev lp parport autofs4 pata_acpi
[  505.409024]  psmouse firewire_ohci ahci libahci sdhci_pci pata_amd sdhci firewire_core forcedeth crc_itu_t fjes video
[  505.409104]  [<ffffffffc0533c42>] uvc_status_cleanup+0x42/0x50 [uvcvideo]
[  505.409108]  [<ffffffffc0529208>] uvc_delete+0x18/0x150 [uvcvideo]
[  505.409112]  [<ffffffffc0529413>] uvc_release+0x23/0x30 [uvcvideo]
[  505.409132]  [<ffffffffc04d682b>] v4l2_device_release+0xcb/0x100 [videodev]
[  505.409154]  [<ffffffffc04d5555>] v4l2_open+0x95/0x110 [videodev]
[  505.429645] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) drbg ansi_cprng ctr ccm nvidia_uvm(POE) nvidia(POE) uvcvideo videobuf2_vmalloc arc4 videobuf2_memops videobuf2_v4l2 snd_hda_codec_conexant videobuf2_core snd_hda_codec_generic v4l2_common videodev ath5k snd_hda_intel media snd_hda_codec snd_hda_core ath mac80211 snd_hwdep kvm_amd snd_pcm hp_wmi kvm sparse_keymap snd_seq_midi cfg80211 snd_seq_midi_event snd_rawmidi irqbypass snd_seq snd_seq_device r852 input_leds snd_timer joydev sm_common serio_raw drm nand k8temp snd edac_mce_amd nand_ecc soundcore edac_core nand_bch bch r592 nand_ids mtd memstick shpchp wmi i2c_nforce2 mac_hid squashfs binfmt_misc parport_pc ppdev lp parport autofs4 pata_acpi
[  505.429699]  psmouse firewire_ohci ahci libahci sdhci_pci pata_amd sdhci firewire_core forcedeth crc_itu_t fjes video
[  505.429775]  [<ffffffffc0533c42>] uvc_status_cleanup+0x42/0x50 [uvcvideo]
[  505.429779]  [<ffffffffc0529208>] uvc_delete+0x18/0x150 [uvcvideo]
[  505.429783]  [<ffffffffc0529413>] uvc_release+0x23/0x30 [uvcvideo]
[  505.429803]  [<ffffffffc04d682b>] v4l2_device_release+0xcb/0x100 [videodev]
[  505.429825]  [<ffffffffc04d5555>] v4l2_open+0x95/0x110 [videodev]
[  505.429892] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) drbg ansi_cprng ctr ccm nvidia_uvm(POE) nvidia(POE) uvcvideo videobuf2_vmalloc arc4 videobuf2_memops videobuf2_v4l2 snd_hda_codec_conexant videobuf2_core snd_hda_codec_generic v4l2_common videodev ath5k snd_hda_intel media snd_hda_codec snd_hda_core ath mac80211 snd_hwdep kvm_amd snd_pcm hp_wmi kvm sparse_keymap snd_seq_midi cfg80211 snd_seq_midi_event snd_rawmidi irqbypass snd_seq snd_seq_device r852 input_leds snd_timer joydev sm_common serio_raw drm nand k8temp snd edac_mce_amd nand_ecc soundcore edac_core nand_bch bch r592 nand_ids mtd memstick shpchp wmi i2c_nforce2 mac_hid squashfs binfmt_misc parport_pc ppdev lp parport autofs4 pata_acpi
[  505.429931]  psmouse firewire_ohci ahci libahci sdhci_pci pata_amd sdhci firewire_core forcedeth crc_itu_t fjes video
[  505.429992]  [<ffffffffc0533c42>] uvc_status_cleanup+0x42/0x50 [uvcvideo]
[  505.429996]  [<ffffffffc0529208>] uvc_delete+0x18/0x150 [uvcvideo]
[  505.430001]  [<ffffffffc0529413>] uvc_release+0x23/0x30 [uvcvideo]
[  505.430012]  [<ffffffffc04d682b>] v4l2_device_release+0xcb/0x100 [videodev]
[  505.430033]  [<ffffffffc04d5555>] v4l2_open+0x95/0x110 [videodev]
[  505.430082] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) drbg ansi_cprng ctr ccm nvidia_uvm(POE) nvidia(POE) uvcvideo videobuf2_vmalloc arc4 videobuf2_memops videobuf2_v4l2 snd_hda_codec_conexant videobuf2_core snd_hda_codec_generic v4l2_common videodev ath5k snd_hda_intel media snd_hda_codec snd_hda_core ath mac80211 snd_hwdep kvm_amd snd_pcm hp_wmi kvm sparse_keymap snd_seq_midi cfg80211 snd_seq_midi_event snd_rawmidi irqbypass snd_seq snd_seq_device r852 input_leds snd_timer joydev sm_common serio_raw drm nand k8temp snd edac_mce_amd nand_ecc soundcore edac_core nand_bch bch r592 nand_ids mtd memstick shpchp wmi i2c_nforce2 mac_hid squashfs binfmt_misc parport_pc ppdev lp parport autofs4 pata_acpi
[  505.430121]  psmouse firewire_ohci ahci libahci sdhci_pci pata_amd sdhci firewire_core forcedeth crc_itu_t fjes video
[  505.430181]  [<ffffffffc0533c42>] uvc_status_cleanup+0x42/0x50 [uvcvideo]
[  505.430185]  [<ffffffffc0529208>] uvc_delete+0x18/0x150 [uvcvideo]
[  505.430190]  [<ffffffffc0529413>] uvc_release+0x23/0x30 [uvcvideo]
[  505.430201]  [<ffffffffc04d682b>] v4l2_device_release+0xcb/0x100 [videodev]
[  505.430222]  [<ffffffffc04d5555>] v4l2_open+0x95/0x110 [videodev]
[  505.437337] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) drbg ansi_cprng ctr ccm nvidia_uvm(POE) nvidia(POE) uvcvideo videobuf2_vmalloc arc4 videobuf2_memops videobuf2_v4l2 snd_hda_codec_conexant videobuf2_core snd_hda_codec_generic v4l2_common videodev ath5k snd_hda_intel media snd_hda_codec snd_hda_core ath mac80211 snd_hwdep kvm_amd snd_pcm hp_wmi kvm sparse_keymap snd_seq_midi cfg80211 snd_seq_midi_event snd_rawmidi irqbypass snd_seq snd_seq_device r852 input_leds snd_timer joydev sm_common serio_raw drm nand k8temp snd edac_mce_amd nand_ecc soundcore edac_core nand_bch bch r592 nand_ids mtd memstick shpchp wmi i2c_nforce2 mac_hid squashfs binfmt_misc parport_pc ppdev lp parport autofs4 pata_acpi
[  505.437391]  psmouse firewire_ohci ahci libahci sdhci_pci pata_amd sdhci firewire_core forcedeth crc_itu_t fjes video
[  505.437471]  [<ffffffffc0529338>] uvc_delete+0x148/0x150 [uvcvideo]
[  505.437475]  [<ffffffffc0529413>] uvc_release+0x23/0x30 [uvcvideo]
[  505.437494]  [<ffffffffc04d682b>] v4l2_device_release+0xcb/0x100 [videodev]
[  505.437517]  [<ffffffffc04d5555>] v4l2_open+0x95/0x110 [videodev]

~$ ls -l /dev | grep video
crw-rw----  1 root video      29,   0 mai   21 08:33 fb0
lrwxrwxrwx  1 root root            11 mai   21 09:40 video -> /dev/video0
crw-rw-rw-  1 root root       81,   0 mai   21 09:33 video0

~$ dmesg | grep -i usb
[    0.235255] ACPI: bus type USB registered
[    0.235255] usbcore: registered new interface driver usbfs
[    0.235255] usbcore: registered new interface driver hub
[    0.235255] usbcore: registered new device driver usb
[    1.188626] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.188819] ehci-pci 0000:00:02.1: new USB bus registered, assigned bus number 1
[    1.204032] ehci-pci 0000:00:02.1: USB 2.0 started, EHCI 1.00
[    1.204105] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    1.204108] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.204110] usb usb1: Product: EHCI Host Controller
[    1.204113] usb usb1: Manufacturer: Linux 4.4.0-22-generic ehci_hcd
[    1.204115] usb usb1: SerialNumber: 0000:00:02.1
[    1.204329] hub 1-0:1.0: USB hub found
[    1.204709] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    1.204823] ohci-pci 0000:00:02.0: new USB bus registered, assigned bus number 2
[    1.262072] usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
[    1.262075] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.262078] usb usb2: Product: OHCI PCI host controller
[    1.262081] usb usb2: Manufacturer: Linux 4.4.0-22-generic ohci_hcd
[    1.262084] usb usb2: SerialNumber: 0000:00:02.0
[    1.262271] hub 2-0:1.0: USB hub found
[    1.262870] uhci_hcd: USB Universal Host Controller Interface driver
[    1.516050] usb 1-4: new high-speed USB device number 2 using ehci-pci
[    1.666822] usb 1-4: New USB device found, idVendor=0408, idProduct=030c
[    1.666828] usb 1-4: New USB device strings: Mfr=2, Product=1, SerialNumber=3
[    1.666832] usb 1-4: Product: HP Webcam
[    1.666834] usb 1-4: Manufacturer: QCM
[    1.666837] usb 1-4: SerialNumber: SN0001
[    2.105883] usb usb2: USB disconnect, device number 1
[    2.106353] ohci-pci 0000:00:02.0: USB bus 2 deregistered
[   22.532967] input: HP Webcam as /devices/pci0000:00/0000:00:02.1/usb1/1-4/1-4:1.0/input/input11
[   22.533134] usbcore: registered new interface driver uvcvideo
[   22.533136] USB Video Class driver (1.1.1)
[  505.392205] usb 1-4: USB disconnect, device number 2

~$ ls /dev/video*
/dev/video  /dev/video0

~$ ls -ltr /dev/video*crw-rw-rw- 1 root root 81, 0 mai   21 09:33 /dev/video0
lrwxrwxrwx 1 root root    11 mai   21 09:40 /dev/video -> /dev/video0

~$ vlc v4l:///dev/video0
VLC media player 2.2.2 Weatherwax (revision 2.2.2-0-g6259d80)
[000000000116e148] core libvlc: Lancement de vlc avec l'interface par défaut. Utilisez « cvlc » pour démarrer VLC sans interface.
[00007fc014000e48] v4l2 demux error: cannot open device '/dev/video0': Permission denied
[00007fc014000e48] v4l2 access error: cannot open device '/dev/video0': Permission denied
[00007fc01c003898] core input error: open of `v4l:///dev/video0' failed
QObject::~QObject: Timers cannot be stopped from another thread

~$ webcam
reading config file: /home/paul/.webcamrc
v4l2: open /dev/video0: Permission denied
vid-open: failed: libv4l
no grabber device available

~$ sudo webcam
reading config file: /home/paul/.webcamrc
v4l2: open /dev/video0: No such device or address
vid-open: failed: libv4l
no grabber device available

Si vous pouvez m'aider je vous en remercie d'avance

Dernière modification par paulwoisard (Le 22/05/2016, à 15:00)

---

Actuellement, j'ai une toute petite équipe de bénévoles et on essaye de dév des deux, trois logiciels plus ou moins utile, en voici le site web : https://bit-scripts.github.io/

Ayral

Re : [RESOLU] Problème webcam non détectée par cheese ou skype

Le retour de ta commande

dmesg | grep video

à la première ligne renvoie

uvcvideo: Found UVC 1.00 device HP Webcam (0408:030c)

0408:030c est l'dentifiant de ta webcam je pense.
Le problème que tu as a été abordé dans cette discussion, et a semble-t il été résolu.

Sur coogle, on peut faire une recherche avec cet identifiant 0408:030c dans le quel 0408 est le code vendor, et 030c le produit.
Dans ce cas ça répond   ID 0408:030c Quanta Computer, Inc.

---

Pour mettre les retours de commande entre deux balises code, les explications sont là : https://forum.ubuntu-fr.org/viewtopic.php?id=1614731
Blog d'un retraité
Site de graphisme du fiston Loïc
Ubuntu 22.04 LTS sur un Thinkpad W540

paulwoisard

Re : [RESOLU] Problème webcam non détectée par cheese ou skype

Bonjour,

Il y a quelques jours, j'avais réussis à faire fonctionner la webcam.

Là, il y a quelques minutes en redémarrant le pc :
- elle fonctionnait à nouveau mais il y a une erreur.
- j'ai relancé cheese, la webcam a redémarré, puis même crash.
- j'ai relancé cheese puis "pas de caméra détecté"

Là j'ai redémarré à nouveau le pc et j'ai lancé cheese depuis le terminal, elle a fonctionnait puis crash, mais j'ai pu relever l'erreur dans le terminal :

~$ cheese

(cheese:7010): cheese-WARNING **: Impossible de lire à partir de la ressource.: gstv4l2bufferpool.c(1054): gst_v4l2_buffer_pool_poll (): /GstCameraBin:camerabin/GstWrapperCameraBinSrc:camera_source/GstBin:bin18/GstV4l2Src:v4l2src1:
poll error 1: Argument invalide (22)


** (cheese:7010): CRITICAL **: cheese_preferences_dialog_on_source_change: assertion '_tmp2_ > ((guint) 0)' failed

(cheese:7010): cheese-CRITICAL **: cheese_camera_device_get_name: assertion 'CHEESE_IS_CAMERA_DEVICE (device)' failed

(cheese:7010): GLib-CRITICAL **: g_variant_new_string: assertion 'string != NULL' failed

(cheese:7010): GLib-GIO-CRITICAL **: g_settings_schema_key_type_check: assertion 'value != NULL' failed

(cheese:7010): GLib-CRITICAL **: g_variant_get_type_string: assertion 'value != NULL' failed

(cheese:7010): GLib-GIO-CRITICAL **: g_settings_set_value: key 'camera' in 'org.gnome.Cheese' expects type 's', but a GVariant of type '(null)' was given

** (cheese:7010): CRITICAL **: cheese_preferences_dialog_setup_resolutions_for_device: assertion 'device != NULL' failed

Merci d'avance.

Dernière modification par paulwoisard (Le 21/05/2016, à 17:28)

---

Actuellement, j'ai une toute petite équipe de bénévoles et on essaye de dév des deux, trois logiciels plus ou moins utile, en voici le site web : https://bit-scripts.github.io/

paulwoisard

Re : [RESOLU] Problème webcam non détectée par cheese ou skype

Bonjour,

Aujourd'hui, la caméra marche bien et j'ai :

~$ lsusb
Bus 001 Device 002: ID 0408:030c Quanta Computer, Inc. HP Webcam
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

sans avoir rien fait...

---

Actuellement, j'ai une toute petite équipe de bénévoles et on essaye de dév des deux, trois logiciels plus ou moins utile, en voici le site web : https://bit-scripts.github.io/

Ayral

Re : [RESOLU] Problème webcam non détectée par cheese ou skype

Je pensais qu'il n'y avait que Windows qui réclamait des redémarrages à répétition...
Mais bon quand tu verras que ton problème est résolu, tu modifies ton premier message et tu rajoutes l'expression [Résolu] au début du sujet. Merci.

---

Pour mettre les retours de commande entre deux balises code, les explications sont là : https://forum.ubuntu-fr.org/viewtopic.php?id=1614731
Blog d'un retraité
Site de graphisme du fiston Loïc
Ubuntu 22.04 LTS sur un Thinkpad W540