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[SOLVED] WebCam [Z-Star ZC0303] problem (green screen)

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    #1

    [SOLVED] WebCam [Z-Star ZC0303] problem (green screen)

    Hi. I recently upgraded from 8.10 Interpid to 9.04 Jaunty. This webcam did not work in Interpid, dmesg saying the sensor was unknown. After the upgrade to 9.04 the camera gets recognized, but instead of video I get colored noise (primarily green). I tried opening the device in skype, vlc and gqcam.

    Any ideas and suggestions are welcome.

    Off-topic: Great thing Jaunty! Fixed just about everything bad I experienced in Interpid

    On plug-in, dmesg:
    Code:
    [ 5830.856267] usb 7-1: new full speed USB device using uhci_hcd and address 4
[ 5831.053339] usb 7-1: configuration #1 chosen from 1 choice
[ 5831.066418] gspca: probing 0ac8:303b
[ 5832.699222] zc3xx: probe 2wr ov vga 0x0000
[ 5832.818220] zc3xx: probe 3wr vga 1 0xc001
[ 5832.823218] zc3xx: probe sensor -> 13
[ 5832.823220] zc3xx: Find Sensor MI0360. Chip revision c001
[ 5832.828454] gspca: probe ok
    lsusb, regarding the camera:
    Code:
    Bus 007 Device 004: ID 0ac8:303b Z-Star Microelectronics Corp. ZC0303 WebCam
    lsmod:
    Code:
    Module         Size Used by
binfmt_misc      16776 1   
ppdev         15620 0   
bridge        56340 0   
stp          10500 1 bridge
bnep         20224 2   
input_polldev     11912 0   
video         25360 0
output        11008 1 video
sbp2         30476 0
lp          17156 0
parport        42220 2 ppdev,lp
ctxfi         72084 4
snd_seq_dummy     10756 0
snd_seq_oss      37760 0
snd_seq_midi     14336 0
snd_hda_intel    435636 1
snd_rawmidi      29696 1 snd_seq_midi
joydev        18368 0
snd_pcm_oss      46336 0
snd_mixer_oss     22656 1 snd_pcm_oss
snd_seq_midi_event  15104 2 snd_seq_oss,snd_seq_midi
snd_seq        56880 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_seq_device    14988 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd_pcm        82948 4 ctxfi,snd_hda_intel,snd_pcm_oss
gspca_zc3xx      55552 0
gspca_main      29952 1 gspca_zc3xx
videodev       41600 1 gspca_main
snd_timer       29704 3 snd_seq,snd_pcm
iTCO_wdt       19108 0
wacom         28808 0
nvidia       7234012 38
snd          62628 18 ctxfi,snd_seq_oss,snd_hda_intel,snd_rawmidi,snd_pcm_oss,snd_mixer_oss,snd_seq,snd_seq_device,snd_pcm,snd_timer
soundcore       15200 1 snd
usblp         20224 0
usbhid        42336 0
v4l1_compat      21764 1 videodev
pcspkr        10496 0
snd_page_alloc    16904 2 snd_hda_intel,snd_pcm
iTCO_vendor_support  11652 1 iTCO_wdt
intel_agp       34108 0
agpgart        42696 2 nvidia,intel_agp
usb_storage      82880 0
ohci1394       38576 0
ieee1394       94660 2 sbp2,ohci1394
atl1e         40212 0
floppy        64324 0
fbcon         46112 0
tileblit       10752 1 fbcon
font         16384 1 fbcon
bitblit        13824 1 fbcon
softcursor       9984 1 bitblit
    Tags: None
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    #2
    Re: WebCam [Z-Star ZC0303] problem (green screen)

    I'm having exactly the same problem with my Z-Star ZC0301. It worked fine before the upgrade but only green screen now! Here's the info I got from the same terminal commands as you quoted:

    dmesg on plugging camera in

    [ 4329.409663] usb 2-2.3: new full speed USB device using uhci_hcd and address 5

    [ 4329.610646] usb 2-2.3: configuration #1 chosen from 1 choice

    [ 4329.614223] gspca: probing 0ac8:301b

    [ 4331.275401] zc3xx: probe 2wr ov vga 0x0000

    [ 4331.319396] zc3xx: probe sensor -> 11

    [ 4331.319401] zc3xx: Find Sensor HV7131R(c)

    [ 4331.327280] gspca: probe ok


    lsusb for camera

    Bus 002 Device 005: ID 0ac8:301b Z-Star Microelectronics Corp. ZC0301 WebCam

    lsmod

    Module Size Used by
    binfmt_misc 16776 1
    ppdev 15620 0
    bridge 56340 0
    stp 10500 1 bridge
    bnep 20224 2
    apm 25436 2
    lp 17156 0
    parport 42220 2 ppdev,lp
    snd_via82xx 32152 3
    gameport 19340 1 snd_via82xx
    snd_ac97_codec 112292 1 snd_via82xx
    ac97_bus 9856 1 snd_ac97_codec
    snd_pcm_oss 46336 0
    snd_mixer_oss 22656 1 snd_pcm_oss
    snd_pcm 82948 3 snd_via82xx,snd_ac97_codec,snd_pcm_oss
    snd_page_alloc 16904 2 snd_via82xx,snd_pcm
    snd_mpu401_uart 15104 1 snd_via82xx
    snd_seq_dummy 10756 0
    snd_seq_oss 37760 0
    snd_seq_midi 14336 0
    snd_rawmidi 29696 2 snd_mpu401_uart,snd_seq_midi
    snd_seq_midi_event 15104 2 snd_seq_oss,snd_seq_midi
    snd_seq 56880 7 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_mid i_event
    snd_timer 29704 2 snd_pcm,snd_seq
    snd_seq_device 14988 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi ,snd_seq
    gspca_zc3xx 55552 0
    psmouse 61972 0
    gspca_main 29952 1 gspca_zc3xx
    snd 62628 18 snd_via82xx,snd_ac97_codec,snd_pcm_oss,snd_mixer_o ss,snd_pcm,snd_mpu401_uart,snd_seq_oss,snd_rawmidi ,snd_seq,snd_timer,snd_seq_device
    usblp 20224 0
    i2c_viapro 15892 0
    pcspkr 10496 0
    serio_raw 13316 0
    videodev 41600 1 gspca_main
    v4l1_compat 21764 1 videodev
    soundcore 15200 1 snd
    via_agp 16256 1
    agpgart 42696 1 via_agp
    shpchp 40212 0
    via_rhine 30856 0
    mii 13312 1 via_rhine
    fbcon 46112 0
    tileblit 10752 1 fbcon
    font 16384 1 fbcon
    bitblit 13824 1 fbcon
    softcursor 9984 1 bitblit

    Anybody got any ideas?
    I'm only here so often because I'm too blinking lazy to learn shell!
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      #3
      Re: WebCam [Z-Star ZC0303] problem (green screen)

      I have a A4Tech Pk-635m, it is listed in lsusb as "ID 0ac8:303b Z-Star Microelectronics Corp. ZC0303 WebCam", just like yours.

      It not work in Kopete, but work in Ekiga and aMSN. If you need a MSN client I suggest that you install aMSN.
      If you find a grammar error in my text, is because English is not my native language :-)
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        #4
        Re: WebCam [Z-Star ZC0303] problem (green screen)

        JabaDisa,

        Dibl sent me here for a partial solution to the camera problem.

        http://kubuntuforums.net/forums/inde...opic=3098024.0

        I changed it a bit for my software (Skype) - see here

        http://kubuntuforums.net/forums/inde...9959#msg179959

        and now my camera works perfectly in Skype as long as I open Skype through the terminal.
        This might work for you too?

        Also, again thanks to Dibl, I have modified the launch command in the menu editor so the camera works perfectly again when I launch it the ordinary way using the application launcher. Try it out.


        I'm only here so often because I'm too blinking lazy to learn shell!
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          #5
          Re: WebCam [Z-Star ZC0303] problem (green screen)

          bernieszu, thanks for pointing me to the solution!
          And thank you, Dibl!
          I had doubts regarding v4l because the camera wasn't working in v4l2, but was half-working in v4l1. However I've no clue how those video systems actually work

          My adapted solution was creating a small script called "/usr/bin/skype-video":
          Code:
          #!/bin/sh
LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so skype
          and pointing my menu link to skype-video instead of skype.

          The camera is now working properly!
          Thanks again guys. Soon my journey to the Kubuntu side will be complete!
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