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Webcam intégrée sur laptop inaccessible pour certains logiciels

Severin

Bonjour,

J'ai un portable Asus K55V (https://www.asus.com/us/Laptops/K55VD/) sur Ubuntu 20.04 et depuis quelques années (même problème depuis au moins Ubuntu 18.04) la webcam, bien qu'elle s'allume, n'affichait aucune image. Je pensais que la webcam était morte, jusqu’à ce que je m’aperçoive qu’elle fonctionne sous Zoom (mais toujours pas sur Skype ou Firefox pour des vidéo-conférences Jitsi via navigateur).

Mon kernel est récent :

~$ uname -sr
Linux 5.8.0-40-generic

Lsusb donne ceci concernant la webcam :

Bus 001 Device 003: ID 058f:a014 Alcor Micro Corp. Asus Integrated Webcam

Grep error donne ceci :

~$ dmesg | grep error
[    0.308178] ACPI Error: Aborting method \_PR.CPU0._PDC due to previous error (AE_AML_OPERAND_TYPE) (20200528/psparse-529)
[    1.483685] ACPI Error: Aborting method \_SB.PCI0.GFX0._DSM due to previous error (AE_AML_PACKAGE_LIMIT) (20200528/psparse-529)
[    1.484259] ACPI Error: Aborting method \_SB.PCI0.GFX0._DSM due to previous error (AE_AML_PACKAGE_LIMIT) (20200528/psparse-529)
[    1.484264] ACPI Error: Aborting method \_SB.PCI0.PEG0.PEGP._DSM due to previous error (AE_AML_PACKAGE_LIMIT) (20200528/psparse-529)
[    3.027411] usbhid: probe of 3-3.1:1.0 failed with error -32
[    3.028543] usbhid: probe of 3-3.1:1.1 failed with error -32
[  181.777869] EXT4-fs (dm-1): re-mounted. Opts: errors=remount-ro

La dernière intervention sur ce forum (https://forums.gentoo.org/viewtopic-t-968672-start-0.html) laisse penser qu’il s’agit juste d’un problème de droits d’accès, mais la solution proposée est assez cryptique pour moi et a commande emerge ne passe pas.
Quelqu’un voit-il la solution ?

xubu1957

Bonjour,

Montre, en te servant du Retour utilisable de commande :

lsusb | sort; echo; lsusb -t

lsmod | sort

dmesg | grep -i usb

En lançant en commande :

webcam

ressort-il un message ?

Tu devrais essayer avec [doc]guvcview[/doc].

Severin

$ lsusb | sort; echo; lsusb -t
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 058f:a014 Alcor Micro Corp. Asus Integrated Webcam
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 006: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 003 Device 007: ID 0738:1731 Mad Catz, Inc. 
Bus 003 Device 008: ID 045e:078c Microsoft Corp. 
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub

/:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M
    |__ Port 3: Dev 6, If 0, Class=Hub, Driver=hub/4p, 480M
        |__ Port 1: Dev 7, If 0, Class=Human Interface Device, Driver=usbhid, 12M
        |__ Port 1: Dev 7, If 1, Class=Human Interface Device, Driver=usbhid, 12M
        |__ Port 2: Dev 8, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
        |__ Port 3: Dev 3, If 0, Class=Video, Driver=uvcvideo, 480M
        |__ Port 3: Dev 3, If 1, Class=Video, Driver=uvcvideo, 480M

lsmod | sort
aesni_intel           372736  6
ahci                   40960  3
asus_nb_wmi            32768  0
asus_wmi               36864  1 asus_nb_wmi
async_memcpy           20480  2 raid456,async_raid6_recov
async_pq               24576  2 raid456,async_raid6_recov
async_raid6_recov      24576  1 raid456
async_tx               20480  5 async_pq,async_memcpy,async_xor,raid456,async_raid6_recov
async_xor              20480  3 async_pq,raid456,async_raid6_recov
at24                   24576  0
ath                    36864  3 ath9k_common,ath9k,ath9k_hw
ath9k                 151552  0
ath9k_common           36864  1 ath9k
ath9k_hw              483328  2 ath9k_common,ath9k
auth_rpcgss           114688  1 nfsd
autofs4                45056  2
blake2b_generic        20480  0
btrfs                1290240  0
ccm                    20480  6
cec                    53248  2 drm_kms_helper,i915
cfg80211              778240  4 ath9k_common,ath9k,ath,mac80211
coretemp               20480  0
crc32_pclmul           16384  0
crct10dif_pclmul       16384  1
cryptd                 24576  3 crypto_simd,ghash_clmulni_intel
crypto_simd            16384  1 aesni_intel
dm_crypt               49152  1
drm                   552960  14 drm_kms_helper,i915,ttm,nouveau
drm_kms_helper        217088  2 i915,nouveau
efi_pstore             16384  0
fb_sys_fops            16384  1 drm_kms_helper
ghash_clmulni_intel    16384  0
glue_helper            16384  1 aesni_intel
grace                  16384  2 nfsd,lockd
hid                   135168  2 usbhid,hid_generic
hid_generic            16384  0
i2c_algo_bit           16384  2 i915,nouveau
i2c_i801               32768  0
i2c_smbus              20480  1 i2c_i801
i915                 2195456  60
input_leds             16384  0
intel_cstate           20480  0
intel_powerclamp       20480  0
intel_rapl_common      28672  1 intel_rapl_msr
intel_rapl_msr         20480  0
ip_tables              32768  0
joydev                 24576  0
kvm                   712704  1 kvm_intel
kvm_intel             286720  0
ledtrig_audio          16384  1 snd_hda_codec_generic
libahci                36864  1 ahci
libarc4                16384  1 mac80211
libcrc32c              16384  2 btrfs,raid456
linear                 20480  0
lockd                 102400  1 nfsd
lp                     20480  0
lpc_ich                24576  0
mac80211              905216  1 ath9k
mac_hid                16384  0
mc                     57344  4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
mei                   106496  3 mei_hdcp,mei_me
mei_hdcp               24576  0
mei_me                 40960  1
Module                  Size  Used by
multipath              20480  0
mxm_wmi                16384  1 nouveau
nfs_acl                16384  1 nfsd
nfsd                  462848  13
nls_iso8859_1          16384  1
nouveau              1998848  1
parport                65536  3 parport_pc,lp,ppdev
parport_pc             45056  0
ppdev                  24576  0
psmouse               155648  0
r8169                  77824  0
raid0                  24576  0
raid10                 57344  0
raid1                  49152  0
raid456               155648  0
raid6_pq              114688  4 async_pq,btrfs,raid456,async_raid6_recov
rapl                   20480  0
rc_core                57344  1 cec
realtek                24576  1
rtsx_pci               81920  1 rtsx_pci_sdmmc
rtsx_pci_sdmmc         28672  0
sch_fq_codel           20480  2
serio_raw              20480  0
snd                    94208  20 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi
snd_hda_codec         139264  4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_codec_generic    81920  1 snd_hda_codec_realtek
snd_hda_codec_hdmi     61440  1
snd_hda_codec_realtek   126976  1
snd_hda_core           94208  5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_hda_intel          53248  5
snd_hwdep              20480  1 snd_hda_codec
snd_intel_dspcfg       24576  1 snd_hda_intel
snd_pcm               114688  5 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
snd_rawmidi            36864  1 snd_seq_midi
snd_seq                69632  2 snd_seq_midi,snd_seq_midi_event
snd_seq_device         16384  3 snd_seq,snd_seq_midi,snd_rawmidi
snd_seq_midi           20480  0
snd_seq_midi_event     16384  1 snd_seq_midi
snd_timer              40960  2 snd_seq,snd_pcm
soundcore              16384  1 snd
sparse_keymap          16384  1 asus_wmi
sunrpc                487424  18 nfsd,auth_rpcgss,lockd,nfs_acl
syscopyarea            16384  1 drm_kms_helper
sysfillrect            16384  1 drm_kms_helper
sysimgblt              16384  1 drm_kms_helper
ttm                   102400  1 nouveau
usbhid                 57344  0
uvcvideo               98304  2
vboxdrv               516096  2 vboxnetadp,vboxnetflt
vboxnetadp             28672  0
vboxnetflt             28672  0
video                  49152  3 asus_wmi,i915,nouveau
videobuf2_common       53248  2 videobuf2_v4l2,uvcvideo
videobuf2_memops       20480  1 videobuf2_vmalloc
videobuf2_v4l2         24576  1 uvcvideo
videobuf2_vmalloc      20480  1 uvcvideo
videodev              237568  5 videobuf2_v4l2,uvcvideo,videobuf2_common
wmi                    32768  4 asus_wmi,wmi_bmof,mxm_wmi,nouveau
wmi_bmof               16384  0
x86_pkg_temp_thermal    20480  0
xhci_pci               20480  0
xhci_pci_renesas       20480  1 xhci_pci
xor                    24576  2 async_xor,btrfs
x_tables               45056  1 ip_tables

dmesg | grep -i usb
[    0.449328] ACPI: bus type USB registered
[    0.449328] usbcore: registered new interface driver usbfs
[    0.449328] usbcore: registered new interface driver hub
[    0.449328] usbcore: registered new device driver usb
[    0.559672] pci 0000:00:1a.0: quirk_usb_early_handoff+0x0/0x662 took 20810 usecs
[    0.583666] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x662 took 23412 usecs
[    0.851829] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.851975] ehci-pci 0000:00:1a.0: new USB bus registered, assigned bus number 1
[    0.871558] ehci-pci 0000:00:1a.0: USB 2.0 started, EHCI 1.00
[    0.871633] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.08
[    0.871635] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.871636] usb usb1: Product: EHCI Host Controller
[    0.871637] usb usb1: Manufacturer: Linux 5.8.0-40-generic ehci_hcd
[    0.871638] usb usb1: SerialNumber: 0000:00:1a.0
[    0.871883] hub 1-0:1.0: USB hub found
[    0.872143] ehci-pci 0000:00:1d.0: new USB bus registered, assigned bus number 2
[    0.891555] ehci-pci 0000:00:1d.0: USB 2.0 started, EHCI 1.00
[    0.891623] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.08
[    0.891625] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.891626] usb usb2: Product: EHCI Host Controller
[    0.891627] usb usb2: Manufacturer: Linux 5.8.0-40-generic ehci_hcd
[    0.891628] usb usb2: SerialNumber: 0000:00:1d.0
[    0.891811] hub 2-0:1.0: USB hub found
[    0.891943] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    0.891962] uhci_hcd: USB Universal Host Controller Interface driver
[    1.207577] usb 1-1: new high-speed USB device number 2 using ehci-pci
[    1.223584] usb 2-1: new high-speed USB device number 2 using ehci-pci
[    1.363937] usb 1-1: New USB device found, idVendor=8087, idProduct=0024, bcdDevice= 0.00
[    1.363940] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    1.364227] hub 1-1:1.0: USB hub found
[    1.375725] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 3
[    1.377007] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.08
[    1.377009] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.377011] usb usb3: Product: xHCI Host Controller
[    1.377012] usb usb3: Manufacturer: Linux 5.8.0-40-generic xhci-hcd
[    1.377014] usb usb3: SerialNumber: 0000:00:14.0
[    1.377136] hub 3-0:1.0: USB hub found
[    1.377343] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 4
[    1.377346] xhci_hcd 0000:00:14.0: Host supports USB 3.0 SuperSpeed
[    1.377387] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.08
[    1.377389] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.377390] usb usb4: Product: xHCI Host Controller
[    1.377392] usb usb4: Manufacturer: Linux 5.8.0-40-generic xhci-hcd
[    1.377393] usb usb4: SerialNumber: 0000:00:14.0
[    1.377493] hub 4-0:1.0: USB hub found
[    1.383936] usb 2-1: New USB device found, idVendor=8087, idProduct=0024, bcdDevice= 0.00
[    1.383939] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    1.384089] hub 2-1:1.0: USB hub found
[    1.651528] usb 1-1.3: new high-speed USB device number 3 using ehci-pci
[    1.895797] usb 1-1.3: New USB device found, idVendor=058f, idProduct=a014, bcdDevice= 0.03
[    1.895799] usb 1-1.3: New USB device strings: Mfr=3, Product=1, SerialNumber=0
[    1.895801] usb 1-1.3: Product: ASUS USB2.0 WebCam
[    1.895802] usb 1-1.3: Manufacturer: 04G6200086K1AN26Q000VTM
[    1.987586] usb 3-1: new full-speed USB device number 2 using xhci_hcd
[    2.137673] usb 3-1: not running at top speed; connect to a high speed hub
[    2.142739] usb 3-1: New USB device found, idVendor=22b8, idProduct=2e82, bcdDevice= 4.14
[    2.142741] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    2.142742] usb 3-1: Product: moto g(8) power
[    2.142744] usb 3-1: Manufacturer: motorola
[    2.142745] usb 3-1: SerialNumber: ZY227V7S69
[    2.271649] usb 3-3: new high-speed USB device number 3 using xhci_hcd
[    2.420131] usb 3-3: New USB device found, idVendor=1a40, idProduct=0101, bcdDevice= 1.11
[    2.420136] usb 3-3: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[    2.420139] usb 3-3: Product: USB 2.0 Hub
[    2.420693] hub 3-3:1.0: USB hub found
[    2.807553] usb 3-3.1: new full-speed USB device number 4 using xhci_hcd
[    3.010143] usb 3-3.1: New USB device found, idVendor=0738, idProduct=1731, bcdDevice= 1.00
[    3.010149] usb 3-3.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    3.010152] usb 3-3.1: Product: Mad Catz RAT4
[    3.010156] usb 3-3.1: Manufacturer: Mad Catz
[    3.010160] usb 3-3.1: SerialNumber: \xef\xbf\xbf\xef\xbf\xbf\xef\xbf\xbf\xef\xbf\xbf\xef\xbf\xbf\xef\xbf\xbf\xef\xbf\xbf\xef\xbf\xbf
[    3.027402] usbhid 3-3.1:1.0: can't add hid device: -32
[    3.027411] usbhid: probe of 3-3.1:1.0 failed with error -32
[    3.028537] usbhid 3-3.1:1.1: can't add hid device: -32
[    3.028543] usbhid: probe of 3-3.1:1.1 failed with error -32
[    3.028557] usbcore: registered new interface driver usbhid
[    3.028558] usbhid: USB HID core driver
[    3.191548] usb 3-3.2: new low-speed USB device number 5 using xhci_hcd
[    3.398047] usb 3-3.2: New USB device found, idVendor=045e, idProduct=078c, bcdDevice= 1.11
[    3.398052] usb 3-3.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    3.398055] usb 3-3.2: Product: USB Keyboard
[    3.398057] usb 3-3.2: Manufacturer: LITEON Technology
[    3.413664] input: LITEON Technology USB Keyboard as /devices/pci0000:00/0000:00:14.0/usb3/3-3/3-3.2/3-3.2:1.0/0003:045E:078C.0001/input/input14
[    3.472053] hid-generic 0003:045E:078C.0001: input,hidraw0: USB HID v1.10 Keyboard [LITEON Technology USB Keyboard] on usb-0000:00:14.0-3.2/input0
[  182.518503] uvcvideo: Found UVC 1.00 device ASUS USB2.0 WebCam (058f:a014)
[  182.526537] input: ASUS USB2.0 WebCam: ASUS USB2.0 as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3:1.0/input/input16
[  182.526664] usbcore: registered new interface driver uvcvideo
[  182.526665] USB Video Class driver (1.1.1)
[  185.685795] audit: type=1400 audit(1611666988.278:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="ippusbxd" pid=1148 comm="apparmor_parser"
[  212.841168] usb 3-3: USB disconnect, device number 3
[  212.841174] usb 3-3.1: USB disconnect, device number 4
[  212.841819] usb 3-3.2: USB disconnect, device number 5
[  213.451635] usb 3-3: new high-speed USB device number 6 using xhci_hcd
[  213.599865] usb 3-3: New USB device found, idVendor=1a40, idProduct=0101, bcdDevice= 1.11
[  213.599870] usb 3-3: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[  213.599873] usb 3-3: Product: USB 2.0 Hub
[  213.600510] hub 3-3:1.0: USB hub found
[  213.987643] usb 3-3.1: new full-speed USB device number 7 using xhci_hcd
[  214.190930] usb 3-3.1: New USB device found, idVendor=0738, idProduct=1731, bcdDevice= 1.00
[  214.190935] usb 3-3.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  214.190938] usb 3-3.1: Product: Mad Catz RAT4
[  214.190940] usb 3-3.1: Manufacturer: Mad Catz
[  214.190942] usb 3-3.1: SerialNumber: \xef\xbf\xbf\xef\xbf\xbf\xef\xbf\xbf\xef\xbf\xbf\xef\xbf\xbf\xef\xbf\xbf\xef\xbf\xbf\xef\xbf\xbf
[  214.198326] input: Mad Catz Mad Catz RAT4 as /devices/pci0000:00/0000:00:14.0/usb3/3-3/3-3.1/3-3.1:1.0/0003:0738:1731.0002/input/input20
[  214.198939] hid-generic 0003:0738:1731.0002: input,hidraw0: USB HID v1.11 Mouse [Mad Catz Mad Catz RAT4] on usb-0000:00:14.0-3.1/input0
[  214.202163] hid-generic 0003:0738:1731.0003: hiddev0,hidraw1: USB HID v1.11 Device [Mad Catz Mad Catz RAT4] on usb-0000:00:14.0-3.1/input1
[  214.379640] usb 3-3.2: new low-speed USB device number 8 using xhci_hcd
[  214.585737] usb 3-3.2: New USB device found, idVendor=045e, idProduct=078c, bcdDevice= 1.11
[  214.585742] usb 3-3.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[  214.585744] usb 3-3.2: Product: USB Keyboard
[  214.585747] usb 3-3.2: Manufacturer: LITEON Technology
[  214.594214] input: LITEON Technology USB Keyboard as /devices/pci0000:00/0000:00:14.0/usb3/3-3/3-3.2/3-3.2:1.0/0003:045E:078C.0004/input/input21
[  214.652410] hid-generic 0003:045E:078C.0004: input,hidraw2: USB HID v1.10 Keyboard [LITEON Technology USB Keyboard] on usb-0000:00:14.0-3.2/input0
[ 8058.733305] usb 3-1: USB disconnect, device number 2

~$ webcam
reading config file: /home/monordi/.webcamrc
libv4l2: error setting pixformat: Device or resource busy
ioctl: VIDIOC_S_FMT(type=VIDEO_CAPTURE;fmt.pix.width=640;fmt.pix.height=480;fmt.pix.pixelformat=0x56595559 [YUYV];fmt.pix.field=NONE;fmt.pix.bytesperline=1280;fmt.pix.sizeimage=614400;fmt.pix.colorspace=SRGB;fmt.pix.priv=4276996862): Device or resource busy
libv4l2: error setting pixformat: Device or resource busy
ioctl: VIDIOC_S_FMT(type=VIDEO_CAPTURE;fmt.pix.width=640;fmt.pix.height=480;fmt.pix.pixelformat=0x56595559 [YUYV];fmt.pix.field=NONE;fmt.pix.bytesperline=1280;fmt.pix.sizeimage=614400;fmt.pix.colorspace=SRGB;fmt.pix.priv=4276996862): Device or resource busy
libv4l2: error setting pixformat: Device or resource busy
ioctl: VIDIOC_S_FMT(type=VIDEO_CAPTURE;fmt.pix.width=640;fmt.pix.height=480;fmt.pix.pixelformat=0x56595559 [YUYV];fmt.pix.field=NONE;fmt.pix.bytesperline=1280;fmt.pix.sizeimage=614400;fmt.pix.colorspace=SRGB;fmt.pix.priv=4276996862): Device or resource busy
libv4l2: error setting pixformat: Device or resource busy
ioctl: VIDIOC_S_FMT(type=VIDEO_CAPTURE;fmt.pix.width=640;fmt.pix.height=480;fmt.pix.pixelformat=0x56595559 [YUYV];fmt.pix.field=NONE;fmt.pix.bytesperline=1280;fmt.pix.sizeimage=614400;fmt.pix.colorspace=SRGB;fmt.pix.priv=4276996862): Device or resource busy
libv4l2: error setting pixformat: Device or resource busy
ioctl: VIDIOC_S_FMT(type=VIDEO_CAPTURE;fmt.pix.width=640;fmt.pix.height=480;fmt.pix.pixelformat=0x56595559 [YUYV];fmt.pix.field=NONE;fmt.pix.bytesperline=1280;fmt.pix.sizeimage=614400;fmt.pix.colorspace=SRGB;fmt.pix.priv=4276996862): Device or resource busy
libv4l2: error setting pixformat: Device or resource busy
ioctl: VIDIOC_S_FMT(type=VIDEO_CAPTURE;fmt.pix.width=640;fmt.pix.height=480;fmt.pix.pixelformat=0x56595559 [YUYV];fmt.pix.field=NONE;fmt.pix.bytesperline=1280;fmt.pix.sizeimage=614400;fmt.pix.colorspace=SRGB;fmt.pix.priv=4276996862): Device or resource busy
libv4l2: error setting pixformat: Device or resource busy
ioctl: VIDIOC_S_FMT(type=VIDEO_CAPTURE;fmt.pix.width=640;fmt.pix.height=480;fmt.pix.pixelformat=0x56595559 [YUYV];fmt.pix.field=NONE;fmt.pix.bytesperline=1280;fmt.pix.sizeimage=614400;fmt.pix.colorspace=SRGB;fmt.pix.priv=4276996862): Device or resource busy
libv4l2: error setting pixformat: Device or resource busy
ioctl: VIDIOC_S_FMT(type=VIDEO_CAPTURE;fmt.pix.width=640;fmt.pix.height=480;fmt.pix.pixelformat=0x56595559 [YUYV];fmt.pix.field=NONE;fmt.pix.bytesperline=1280;fmt.pix.sizeimage=614400;fmt.pix.colorspace=SRGB;fmt.pix.priv=4276996862): Device or resource busy
can't get rgb24 data

Severin

Oublié de dire que guvcview me parvient pas à accéder à la webcam :

~$ guvcview
GUVCVIEW: version 2.0.6
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Aucun fichier ou dossier de ce type
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Aucun fichier ou dossier de ce type
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Aucun fichier ou dossier de ce type
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Aucun fichier ou dossier de ce type
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Aucun fichier ou dossier de ce type
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Aucun fichier ou dossier de ce type
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Aucun fichier ou dossier de ce type
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Aucun fichier ou dossier de ce type
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Aucun fichier ou dossier de ce type
ALSA lib pcm_dmix.c:1089:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm_route.c:869:(find_matching_chmap) Found no matching channel map
Cannot connect to server socket err = Aucun fichier ou dossier de ce type
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
Cannot connect to server socket err = Aucun fichier ou dossier de ce type
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pcm_oss.c:377:(_snd_pcm_oss_open) Unknown field port
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
ALSA lib pcm_usb_stream.c:486:(_snd_pcm_usb_stream_open) Invalid type for card
ALSA lib pcm_dmix.c:1089:(snd_pcm_dmix_open) unable to open slave
Cannot connect to server socket err = Aucun fichier ou dossier de ce type
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
V4L2_CORE: Could not grab image (select timeout): Ressource temporairement non disponible

xubu1957

Tente :

sudo modprobe -r uvcvideo && sudo modprobe uvcvideo

Severin

Tente :

sudo modprobe -r uvcvideo && sudo modprobe uvcvideo

J'ai passé la commande et redémarré mais cela n'a pas résolu le problème.

xubu1957

Montre aussi :

v4l2-ctl --list-devices

Vu > Bug 1867306 - Cheese doesn't offer all supported resolutions (only offers 640x480)

Severin

Montre aussi :

v4l2-ctl --list-devices

Vu > Bug 1867306 - Cheese doesn't offer all supported resolutions (only offers 640x480)

~$ v4l2-ctl --list-devices
ASUS USB2.0 WebCam: ASUS USB2.0 (usb-0000:00:1a.0-1.3):
	/dev/video0
	/dev/video1

xubu1957

Un retour pour :

v4l2-ctl -d /dev/video0 --list-formats

?

Commande piquée dans > [Solved] v4l2-ctl Lists RX24 as Available, But xioctl(fd, VIDIOC_S_FMT, &fmt) Won't Have It!

Tu n'as pas besoin de citer mes réponses.

Severin

$ v4l2-ctl -d /dev/video0 --list-formats
ioctl: VIDIOC_ENUM_FMT
	Type: Video Capture

	[0]: 'YUYV' (YUYV 4:2:2)

xubu1957

Et pour :

v4l2-ctl -d /dev/video1 --list-formats

Severin

~$ v4l2-ctl -d /dev/video1 --list-formats
ioctl: VIDIOC_ENUM_FMT
	Type: Video Capture

xubu1957

En lançant en commande :

firefox

ressort-il un message d'erreur ?

Montre aussi les extensions :

grep -oP '},"name":"\K[^"]+' ~/.mozilla/firefox/*.*default*/addons.json

Severin

Pas d'erreurs signalées pour FF 84.0.2 (64 bits)

Pour les extensions (qui comprennent également les langues), cela me gêne de les mettre publiquement sur un forum, le guide Boum indiquant que la config de FF permet de retrouver quelqu'un sur le web. Possible de les partager en privé ? Si on identifie une extension responsable du souci, on l'indiquera ensuite sur ce fil.

Il n'y a pas que sous Firefox que cela ne fonctionne pas, idem avec Skype par exemple.

xubu1957

Et avec :

cheese

un message d'erreur ?

Severin

Pas de message d’erreur, cheese s'ouvre, mais pas d’image et les boutons restent tous inactifs.

xubu1957

Je vois :

Le 01/05/2020, egurgle122 a écritJ'ai seulement ajouté mon utilisateur au groupe vidéo en utilisant cette commande => gpasswd -a user video

Dans > [SOLVED] Built-in Asus Webcam is not working at my Laptop A53S Webcam intégrée sur laptop inaccessible pour certains logiciels

Tente cette commande, pour les permissions :

moko138 a écrit Merci de montrer :

echo -e "\n\tNombre d'éléments de /home/moi ne m'appartenant pas :"; find ~ \( ! -user $USER -o ! -group $USER \) | wc -l

Severin

$ echo -e "\n\tNombre d'éléments de /home/moi ne m'appartenant pas :"; find ~ \( ! -user $USER -o ! -group $USER \) | wc -l

	Nombre d'éléments de /home/moi ne m'appartenant pas :
0

xubu1957

Montre d'éventuels paquets cassés :

dpkg -l | grep -v ^ii

Severin

~$ dpkg -l | grep -v ^ii
Souhait=inconnU/Installé/suppRimé/Purgé/H=à garder
| État=Non/Installé/fichier-Config/dépaqUeté/échec-conFig/H=semi-installé/W=attend-traitement-déclenchements
|/ Err?=(aucune)/besoin Réinstallation (État,Err: majuscule=mauvais)
||/ Nom                                        Version                                    Architecture Description
+++-==========================================-==========================================-============-===============================================================================================================================================================================================================================================
rc  linux-image-5.4.0-42-generic               5.4.0-42.46                                amd64        Signed kernel image generic
rc  linux-image-5.4.0-45-generic               5.4.0-45.49                                amd64        Signed kernel image generic
rc  linux-image-5.4.0-47-generic               5.4.0-47.51                                amd64        Signed kernel image generic
rc  linux-image-5.4.0-48-generic               5.4.0-48.52                                amd64        Signed kernel image generic
rc  linux-image-5.4.0-51-generic               5.4.0-51.56                                amd64        Signed kernel image generic
rc  linux-image-5.4.0-52-generic               5.4.0-52.57                                amd64        Signed kernel image generic
rc  linux-image-5.4.0-53-generic               5.4.0-53.59                                amd64        Signed kernel image generic
rc  linux-image-5.4.0-54-generic               5.4.0-54.60                                amd64        Signed kernel image generic
rc  linux-image-5.4.0-56-generic               5.4.0-56.62                                amd64        Signed kernel image generic
rc  linux-image-5.4.0-58-generic               5.4.0-58.64                                amd64        Signed kernel image generic
rc  linux-image-5.8.0-34-generic               5.8.0-34.37~20.04.2                        amd64        Signed kernel image generic
rc  linux-image-5.8.0-36-generic               5.8.0-36.40~20.04.1                        amd64        Signed kernel image generic
rc  linux-modules-5.4.0-42-generic             5.4.0-42.46                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-5.4.0-45-generic             5.4.0-45.49                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-5.4.0-47-generic             5.4.0-47.51                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-5.4.0-48-generic             5.4.0-48.52                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-5.4.0-51-generic             5.4.0-51.56                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-5.4.0-52-generic             5.4.0-52.57                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-5.4.0-53-generic             5.4.0-53.59                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-5.4.0-54-generic             5.4.0-54.60                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-5.4.0-56-generic             5.4.0-56.62                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-5.4.0-58-generic             5.4.0-58.64                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-5.8.0-34-generic             5.8.0-34.37~20.04.2                        amd64        Linux kernel extra modules for version 5.8.0 on 64 bit x86 SMP
rc  linux-modules-5.8.0-36-generic             5.8.0-36.40~20.04.1                        amd64        Linux kernel extra modules for version 5.8.0 on 64 bit x86 SMP
rc  linux-modules-extra-5.4.0-42-generic       5.4.0-42.46                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-extra-5.4.0-45-generic       5.4.0-45.49                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-extra-5.4.0-47-generic       5.4.0-47.51                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-extra-5.4.0-48-generic       5.4.0-48.52                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-extra-5.4.0-51-generic       5.4.0-51.56                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-extra-5.4.0-52-generic       5.4.0-52.57                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-extra-5.4.0-53-generic       5.4.0-53.59                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-extra-5.4.0-54-generic       5.4.0-54.60                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-extra-5.4.0-56-generic       5.4.0-56.62                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-extra-5.4.0-58-generic       5.4.0-58.64                                amd64        Linux kernel extra modules for version 5.4.0 on 64 bit x86 SMP
rc  linux-modules-extra-5.8.0-34-generic       5.8.0-34.37~20.04.2                        amd64        Linux kernel extra modules for version 5.8.0 on 64 bit x86 SMP
rc  linux-modules-extra-5.8.0-36-generic       5.8.0-36.40~20.04.1                        amd64        Linux kernel extra modules for version 5.8.0 on 64 bit x86 SMP

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