Quickcam Pro 9000 working off/on

[Kevin_E]

Here's something I've found while playing with kdenlive. Anything out of the ordinary found here?

It, too, is saying there is no such device. Funny, considering that Cheese (my default webcam thingee-mah-jig) ALWAYS pops up whenever the cam is unplugged then replugged, only to give me the majority of the time the color bars with static pic-in-pic on the bottom right corner.

Where's my happy pills.....

[Kevin_E]

Here's some more info as I was tinkering.

I done a "v4l-info /dev/video1" query and got info. Video0 does not pick up anything.

### v4l2 device info [/dev/video1] ###
general info
    VIDIOC_QUERYCAP
    driver                  : "uvcvideo"
    card                    : "UVC Camera (046d:0990)"
    bus_info                : "usb-0000:00:1a.7-3"
    version                 : 0.1.0
    capabilities            : 0x4000001 [VIDEO_CAPTURE,STREAMING]

standards

inputs
    VIDIOC_ENUMINPUT(0)
    index                   : 0
    name                    : "Camera 1"
    type                    : CAMERA
    audioset                : 0
    tuner                   : 0
    std                     : 0x0 []
    status                  : 0x0 []

video capture
    VIDIOC_ENUM_FMT(0,VIDEO_CAPTURE)
    index                   : 0
    type                    : VIDEO_CAPTURE
    flags                   : 1
    description             : "MJPEG"
    pixelformat             : 0x47504a4d [MJPG]
    VIDIOC_ENUM_FMT(1,VIDEO_CAPTURE)
    index                   : 1
    type                    : VIDEO_CAPTURE
    flags                   : 0
    description             : "YUV 4:2:2 (YUYV)"
    pixelformat             : 0x56595559 [YUYV]
    VIDIOC_G_FMT(VIDEO_CAPTURE)
    type                    : VIDEO_CAPTURE
    fmt.pix.width           : 1600
    fmt.pix.height          : 1200
    fmt.pix.pixelformat     : 0x56595559 [YUYV]
    fmt.pix.field           : NONE
    fmt.pix.bytesperline    : 3200
    fmt.pix.sizeimage       : 3840000
    fmt.pix.colorspace      : SRGB
    fmt.pix.priv            : 0

controls
    VIDIOC_QUERYCTRL(BASE+0)
    id                      : 9963776
    type                    : INTEGER
    name                    : "Brightness"
    minimum                 : 0
    maximum                 : 255
    step                    : 1
    default_value           : 128
    flags                   : 0
    VIDIOC_QUERYCTRL(BASE+1)
    id                      : 9963777
    type                    : INTEGER
    name                    : "Contrast"
    minimum                 : 0
    maximum                 : 255
    step                    : 1
    default_value           : 32
    flags                   : 0
    VIDIOC_QUERYCTRL(BASE+2)
    id                      : 9963778
    type                    : INTEGER
    name                    : "Saturation"
    minimum                 : 0
    maximum                 : 255
    step                    : 1
    default_value           : 32
    flags                   : 0

### video4linux device info [/dev/video1] ###
general info
    VIDIOCGCAP
    name                    : "UVC Camera (046d:0990)"
    type                    : 0x1 [CAPTURE]
    channels                : 1
    audios                  : 0
    maxwidth                : 960
    maxheight               : 720
    minwidth                : 48
    minheight               : 32

channels
    VIDIOCGCHAN(0)
    channel                 : 0
    name                    : "Camera 1"
    tuners                  : 0
    flags                   : 0x0 []
    type                    : CAMERA
    norm                    : 0

tuner
ioctl VIDIOCGTUNER: Invalid argument

audio
ioctl VIDIOCGAUDIO: Invalid argument

picture
    VIDIOCGPICT
    brightness              : 32896
    hue                     : 0
    colour                  : 8224
    contrast                : 8224
    whiteness               : 0
    depth                   : 16
    palette                 : YUYV

buffer
ioctl VIDIOCGFBUF: Invalid argument

window
    VIDIOCGWIN
    x                       : 0
    y                       : 0
    width                   : 1600
    height                  : 1200
    chromakey               : 0
    flags                   : 0

gstreamer-properties, with plugin libv4l2 chosen (v4l1, "No such device"), my device (now being picked-up), and "tested"
pipeline "v4l2src device="/dev/video1"

Oh for crying out loud, now it works.  Give me a moment.
It WAS giving me an error that it could not render 1600x1200.

Will, after trying to duplicate my findings for this posting, stupid thing decided to TEMPORARILY work (hence title of this thread). So, until next time.

Only Cheese lists video1. All others lists video0 ("No such device"). How in the world do I change this so all proggies pick up video1? In fact, how do I change ANY of the information given in the above "v4l-info /dev/video1"?

[no2498]

you may try this for skype or change the name to what you need it to be


LD_PRELOAD=/usr/lib32/libv4l/v4l2convert.so skype

LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so any name you need it to be

[Kevin_E]

It appears that my reply was removed two days ago.

What I had stated was that it worked, then it just didn't... giving me a long continuous error message in which I had to use force to shut the app (Cheese) down. Guvcview and luvcview wasn't able to pick up the cam with the supplied code because it was searching for video0. Cheese initially worked, grabbing from video1, but later (and somehow) went looking for video0 and erroring (doesn't exist). I can't replicate the results from two days ago because all I'm getting is the same errors referring to video0 not existing.

guvcview, currently:
popup

Guvcview error:

Unable to open device
Please make sure the camera is connected
and that the linux-UVC driver is installed.

terminal:

guvcview 1.1.1
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
Expression 'ioctl( devHandle, SNDCTL_DSP_CHANNELS, &temp )' failed in 'src/hostapi/oss/pa_unix_oss.c', line: 405
video device: /dev/video0 
/dev/video1 - device 1
ERROR opening V4L interface for /dev/video0
ERROR opening V4L interface: No such device
Init video returned -1
Terminated.

Cheese, currently:

** (cheese:5583): WARNING **: Failed to open /dev/video0: No such device

luvcview, currently:

luvcview 0.2.4

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

Yes, that's a look of discontent.