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 integrated/external webcam not working - kamui -  11-26-2022
 
 Hello!
 
 The integrated webcam is not shown at all in skypeforlinux/discord/cheese/chrome. The external webcam is shown, but the content is just black.
 I have dual boot with Windows 10. The integrated webcam works there and the external one (Genius Eye 312) started to work after I installed its driver.
 My laptop is ACER Nitro 5 AN515-58-789C and I found no keyboard shortcut in the user manual.
 
 The system report: https://www68.zippyshare.com/v/Vf6ljuUW/file.html
 I figured that the internal webcam is 0408:4035 Quanta Computer, Inc. ACER HD User Facing in lsusb.
 
 cat /dev/video0 shows No such file or directory
 
 
 sudo dmesg | grep -ni "uvc|facing":
 
 Code: 988:[    2.822775] usb 3-6: Product: ACER HD User Facing1115:[    5.023136] usb 3-6: Found UVC 1.50 device ACER HD User Facing (0408:4035)
 1143:[    5.065102] usb 3-6: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround.
 1145:[    5.068252] uvcvideo 3-6:1.1: Failed to query (129) UVC probe control : 26 (exp. 48).
 1146:[    5.068255] uvcvideo 3-6:1.1: Failed to initialize the device (-5).
 1147:[    5.068301] usbcore: registered new interface driver uvcvideo
The lines with "Failed to query" and "Failed to initialize" are with red.
 
 
 guvcview output:
 
 Code: GUVCVIEW: version 2.0.7V4L2_CORE: ERROR opening V4L interface: No such file or directory
 GUVCVIEW (1): Guvcview error
 no video device (/dev/video0) found
 (guvcview:11537): Gtk-WARNING **: 14:22:13.768: Theme parsing error: <data>:1:17: not a number
 
 (guvcview:11537): Gtk-WARNING **: 14:22:13.768: Theme parsing error: <data>:1:31: Using Pango syntax for the font: style property is deprecated; please use CSS syntax
 
 (guvcview:11537): Gtk-WARNING **: 14:22:13.768: Theme parsing error: <data>:1:17: not a number
 
 (guvcview:11537): Gtk-WARNING **: 14:22:13.768: Theme parsing error: <data>:1:32: Using Pango syntax for the font: style property is deprecated; please use CSS syntax
 dmesg output for sudo rmmod uvcvideo && sudo modprobe uvcvideo:
 
 Code: [  595.311323] usbcore: deregistering interface driver uvcvideo[  595.359025] usb 3-6: Found UVC 1.50 device ACER HD User Facing (0408:4035)
 [  595.390062] usb 3-6: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround.
 [  595.393101] uvcvideo 3-6:1.1: Failed to query (129) UVC probe control : 26 (exp. 48).
 [  595.393116] uvcvideo 3-6:1.1: Failed to initialize the device (-5).
 [  595.393253] usbcore: registered new interface driver uvcvideo
 dmesg output for plugging the external webcam:
 
 Code: [  732.172423] usb 3-1: new full-speed USB device number 5 using xhci_hcd[  732.322341] usb 3-1: config 1 interface 0 altsetting 1 endpoint 0x6 has invalid wMaxPacketSize 0
 [  732.322352] usb 3-1: config 1 interface 0 altsetting 2 endpoint 0x6 has invalid wMaxPacketSize 0
 [  732.322356] usb 3-1: config 1 interface 0 altsetting 3 endpoint 0x6 has invalid wMaxPacketSize 0
 [  732.322359] usb 3-1: config 1 interface 0 altsetting 4 endpoint 0x6 has invalid wMaxPacketSize 0
 [  732.322362] usb 3-1: config 1 interface 0 altsetting 5 endpoint 0x6 has invalid wMaxPacketSize 0
 [  732.322365] usb 3-1: config 1 interface 0 altsetting 6 endpoint 0x6 has invalid wMaxPacketSize 0
 [  732.322368] usb 3-1: config 1 interface 0 altsetting 7 endpoint 0x6 has invalid wMaxPacketSize 0
 [  732.322371] usb 3-1: config 1 interface 0 altsetting 8 endpoint 0x6 has invalid wMaxPacketSize 0
 [  732.322381] usb 3-1: New USB device found, idVendor=093a, idProduct=2622, bcdDevice= 1.00
 [  732.322387] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
 [  732.346929] gspca_main: v2.14.0 registered
 [  732.349691] gspca_main: gspca_pac7302-2.14.0 probing 093a:2622
 [  732.350299] input: gspca_pac7302 as /devices/pci0000:00/0000:00:14.0/usb3/3-1/input/input24
 [  732.350614] usbcore: registered new interface driver gspca_pac7302
 [  732.361560] usbcore: registered new interface driver snd-usb-audio
 guvcview output with the external webcam plugged in:
 
 Code: GUVCVIEW: version 2.0.7V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
 V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
 V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
 V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
 V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
 V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
 V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
 V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
 V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
 V4L2_CORE: failed to subscribe events for control 0x0098090c: Invalid argument
 V4L2_CORE: failed to subscribe events for control 0x00980910: Invalid argument
 ALSA lib pcm_dsnoop.c:601:(snd_pcm_dsnoop_open) unable to open slave
 ALSA lib pcm_dmix.c:1032:(snd_pcm_dmix_open) unable to open slave
 ALSA lib pcm.c:2664:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
 ALSA lib pcm.c:2664:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
 ALSA lib pcm.c:2664:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
 Cannot connect to server socket err = No such file or directory
 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 = No such file or directory
 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:397:(_snd_pcm_oss_open) Cannot open device /dev/dsp
 ALSA lib pcm_oss.c:397:(_snd_pcm_oss_open) Cannot open device /dev/dsp
 ALSA lib confmisc.c:160:(snd_config_get_card) Invalid field card
 ALSA lib pcm_usb_stream.c:482:(_snd_pcm_usb_stream_open) Invalid card 'card'
 ALSA lib confmisc.c:160:(snd_config_get_card) Invalid field card
 ALSA lib pcm_usb_stream.c:482:(_snd_pcm_usb_stream_open) Invalid card 'card'
 ALSA lib pcm_dmix.c:1032:(snd_pcm_dmix_open) unable to open slave
 Cannot connect to server socket err = No such file or directory
 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: V4L2_CAP_TIMEPERFRAME not supported
 control[0]:(unknown - 0x6) 0x980001 'User Controls'
 V4L2_CORE: Could not grab image (select timeout): Resource temporarily unavailable
 V4L2_CORE: V4L2_CAP_TIMEPERFRAME not supported
 V4L2_CORE: Could not grab image (select timeout): Resource temporarily unavailable
 ^CGUVCVIEW Caught signal 2
 V4L2_CORE: Could not grab image (select timeout): Resource temporarily unavailable
 dmesg output of doing that:
 
 Code: [  971.161367] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI[  971.161380] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
 [  971.161387]  Digital Playback and Capture: soc_pcm_open() failed (-22)
 [  971.161391]  HDA Digital: ASoC: dpcm_be_dai_startup() failed at Digital Playback and Capture (-22)
 [  971.161395]  HDA Digital: dpcm_fe_dai_startup() failed (-22)
 [  971.161481] snd_hda_codec_realtek ehdaudio0D0: didn't find PCM for DAI Digital Codec DAI
 [  971.161485] snd_hda_codec_realtek ehdaudio0D0: ASoC: error at snd_soc_dai_startup on Digital Codec DAI: -22
 [  971.161488]  Digital Playback and Capture: soc_pcm_open() failed (-22)
 [  971.161491]  HDA Digital: ASoC: dpcm_be_dai_startup() failed at Digital Playback and Capture (-22)
 [  971.161494]  HDA Digital: dpcm_fe_dai_startup() failed (-22)
 The external webcam is listed in lsusb as Bus 003 Device 005: ID 093a:2622 Pixart Imaging, Inc. Webcam Genius.
 
 If you need any other information, let me know.
 Thanks!
 
 
 Re: integrated/external webcam not working - kamui -  01-14-2023
 
 EDIT:
 The integrated camera was fixed with help from here https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2000947.
 But the external one still isn't working.
 
 (I couldn't edit my post. Click save redirected me to page that said that I'm blocked from this website)
 
 
 
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