SliTaz Forum

won't detect my webcam

(13 posts) (5 voices)

• Started 8 years ago by Linux Forever
• Latest reply from Linux Forever
• This topic is resolved

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1. 

   Linux Forever
   

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   hi,i'm having trouble getting my webcam to work,does someone know a solution?

   Posted 8 years ago #
2. 

   llev
   

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   How do you try to make it work? What software do you use?

   Posted 8 years ago #
3. 

   Linux Forever
   

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   I'm using guvcview and if i connect my webcam and open it it says:

   Please make sure the camera is connected
   and that the correct driver is installed.

   Posted 8 years ago #
4. 

   llev
   

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   Is it a laptop-integrated webcam? Type "lspci -k" and post result here.
   Is it a USB webcam? Type "lsusb" and "dmesg|tail -20" just after plugging it, and post results here.

   Type "ls -l /dev/video" and post results here.

   Try vlc, go to Media > Open Capture Device. Does the arrow at the right of "Video device name" offer you a choice?

   Posted 8 years ago #
5. 

   Linux Forever
   

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   well it's uses a usb port but is made to fit on a laptop screen and i'm using a desktop so:

   VLC:no VLC does NOT offer me a choice

   lspci -k = 00:00.0 Host bridge: Intel Corporation 82845G/GL[Brookdale-G]/GE/PE DRAM Controller/Host-Hub Interface (rev 03)
   Subsystem: Intel Corporation 82845G/GL[Brookdale-G]/GE/PE DRAM Controller/Host-Hub Interface
   Kernel driver in use: agpgart-intel
   00:02.0 VGA compatible controller: Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 03)
   Subsystem: Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device
   Kernel driver in use: i915
   00:1d.0 USB controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #1 (rev 02)
   Subsystem: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #1
   Kernel driver in use: uhci_hcd
   00:1d.1 USB controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #2 (rev 02)
   Subsystem: Intel Corporation Device 24d2
   Kernel driver in use: uhci_hcd
   00:1d.2 USB controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #3 (rev 02)
   Subsystem: Intel Corporation Device 24d2
   Kernel driver in use: uhci_hcd
   00:1d.3 USB controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #4 (rev 02)
   Subsystem: Intel Corporation Device 24d2
   Kernel driver in use: uhci_hcd
   00:1d.7 USB controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02)
   Subsystem: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller
   Kernel driver in use: ehci_hcd
   00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2)
   00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC Interface Bridge (rev 02)
   00:1f.2 IDE interface: Intel Corporation 82801EB (ICH5) SATA Controller (rev 02)
   Subsystem: Intel Corporation 82801EB (ICH5) SATA Controller
   Kernel driver in use: ata_piix
   00:1f.3 SMBus: Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev 02)
   Subsystem: Intel Corporation Device 24d2
   00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
   Subsystem: Device 414c:4761
   Kernel driver in use: snd_intel8x0
   01:04.0 Ethernet controller: Sundance Technology Inc / IC Plus Corp IC Plus IP100A Integrated 10/100 Ethernet MAC + PHY (rev 31)
   Subsystem: Sundance Technology Inc / IC Plus Corp Device 0201
   Kernel driver in use: sundance

   lsusb = Bus 001 Device 001: ID 1d6b:0002
   Bus 002 Device 001: ID 1d6b:0001
   Bus 003 Device 001: ID 1d6b:0001
   Bus 004 Device 001: ID 1d6b:0001
   Bus 005 Device 001: ID 1d6b:0001
   Bus 001 Device 005: ID 046d:0829
   Bus 003 Device 002: ID 093a:2510
   Bus 005 Device 002: ID 04d9:1603

   dmesg|tail = fb0: inteldrmfb frame buffer device
   drm: registered panic notifier
   [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
   NET: Registered protocol family 10
   eth0: Link up
   eth0: Link changed: 100Mbps, full duplex
   eth0: no IPv6 routers present
   usb 1-7: USB disconnect, device number 3
   usb 1-7: new high-speed USB device number 5 using ehci_hcd
   usbcore: registered new interface driver snd-usb-audio

   ls -l/dev/video = ls: invalid option -- '/'

   Command line: ls -l/dev/video

   BusyBox v1.23.2 (2015-03-23 09:54:30 CET) multi-call binary.

   Usage: ls [-1AaCxdLHRFplinsehrSXvctu] [-w WIDTH] [FILE]...

   List directory contents

   -1 One column output
   -a Include entries which start with .
   -A Like -a, but exclude . and ..
   -C List by columns
   -x List by lines
   -d List directory entries instead of contents
   -L Follow symlinks
   -H Follow symlinks on command line
   -R Recurse
   -p Append / to dir entries
   -F Append indicator (one of */=@|) to entries
   -l Long listing format
   -i List inode numbers
   -n List numeric UIDs and GIDs instead of names
   -s List allocated blocks
   -e List full date and time
   -h List sizes in human readable format (1K 243M 2G)
   -r Sort in reverse order
   -S Sort by size
   -X Sort by extension
   -v Sort by version
   -c With -l: sort by ctime
   -t With -l: sort by mtime
   -u With -l: sort by atime
   -w N Assume the terminal is N columns wide
   --color[={always,never,auto}] Control coloring

   Posted 8 years ago #
6. 

   Aleksej
   

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   Coder-hobbyist

   Hi,

   Please install the package linux-media.

   Then retry camera reconnect and these commands:
   

   lsusb
   lsmod | grep uvc
   ls -l /dev/video/

   Don't forget about spaces between command and between it's options.
   Post outputs here.

   Posted 8 years ago #
7. 

   Linux Forever
   

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   After installing linux-media:

   lsusb =
   Bus 001 Device 001: ID 1d6b:0002
   Bus 002 Device 001: ID 1d6b:0001
   Bus 003 Device 001: ID 1d6b:0001
   Bus 004 Device 001: ID 1d6b:0001
   Bus 005 Device 001: ID 1d6b:0001
   Bus 001 Device 005: ID 046d:0829
   Bus 003 Device 002: ID 093a:2510
   Bus 005 Device 002: ID 04d9:1603

   lsmod | grep uvc = nothing

   ls -l /dev/video/ = ls: /dev/video/: No such file or directory

   and still no luck with vlc.

   Posted 8 years ago #
8. 

   Aleksej
   

   offline

   Coder-hobbyist

   Hi!

   I forgot to ask starting question: what is your Linux Kernel version?
   uname -a
   My output is:
   Linux slitaz 3.2.71-slitaz #4 SMP Mon Sep 21 00:19:25 CEST 2015 i686 GNU/Linux
   Why I ask? Different SliTaz distributions has different versions of Linux Kernel and, correspondingly, different packages versions. You can install Linux module package that contains module for Linux version 3.2.71 while your system running Linux Kernel version 2.6.37, and this module will not work: kernel just not find it and will not support it.

   Next question to be sure your Kernel modules versions matched your Kernel version:
   tazpkg -l | fgrep linux
   My output is:
   

   linux                              3.2.71            base-system
   linux-acpi                         3.2.71            base-system
   linux-agp                          3.2.71            base-system
   linux-autofs                       3.2.71            base-system
   linux-cpufreq                      3.2.71            base-system
   linux-crypto                       3.2.71            base-system
   linux-drm                          3.2.71            base-system
   linux-firmware                      3.2.71            non-free
   linux-hwmon                        3.2.71            base-system
   linux-ipv6                         3.2.71            base-system
   linux-media                        3.2.71            base-system
   linux-memstick                     3.2.71            base-system
   linux-mmc                          3.2.71            base-system
   linux-sound                        3.2.71            base-system
   linux-squashfs                     3.2.71            base-system
   linux-video                        3.2.71            base-system
   linux-wireless                     3.2.71            base-system

   Next question assuming it's OK with your Kernel: you may use "tazpkg" with the bug that causes post-install command not executed. Try to become root and to execute post-install command now:
   su
   (then type root password blindly, then press Enter)
   depmod -a

   Now assuming you're using Linux Kernel v.3.2.71 and Linux Kernel modules v.3.2.71 and Kernel informed about modules installed from the "linux-media" packages.

   Re-connect your web camera and see what your Kernel says:
   dmesg | fgrep -C4 uvc
   My output is:
   usb 1-5: USB disconnect, device number 3
usb 1-5: new high-speed USB device number 4 using ehci_hcd
   Linux media interface: v0.10
   Linux video capture interface: v2.00
   uvcvideo: Found UVC 1.00 device USB 2.0 Camera (0c45:62c0)
   input: USB 2.0 Camera as /devices/pci0000:00/0000:00:1d.7/usb1/1-5/1-5:1.0/input/input4
   usbcore: registered new interface driver uvcvideo
   USB Video Class driver (1.1.1)
   usb 1-5: USB disconnect, device number 4
hub 1-0:1.0: unable to enumerate USB device on port 5
usb 1-5: new high-speed USB device number 6 using ehci_hcd
hub 1-0:1.0: unable to enumerate USB device on port 5
usb 4-1: new full-speed USB device number 2 using uhci_hcd
usb 4-1: not running at top speed; connect to a high speed hub
   uvcvideo: Found UVC 1.00 device USB 2.0 Camera (0c45:62c0)
   input: USB 2.0 Camera as /devices/pci0000:00/0000:00:1d.2/usb4/4-1/4-1:1.0/input/input5
   EXT3-fs (sda7): using internal journal
kjournald starting. Commit interval 5 seconds
EXT3-fs (sda6): using internal journal

   I've found that Kernel see my netbook's web camera.
   And I can be sure about Kernel modules in use by issuing this command:
   lsmod | fgrep uvc
   My output is:
   

   uvcvideo               46650  0
   videodev               56659  1 uvcvideo
   media                   6541  2 uvcvideo,videodev

   But what about /dev/video? Sorry, I've give you yesterday wrong command, the right command is:
   ls -l /dev/video*
   My output is:
   crw-rw---- 1 root video 81, 0 Окт 31 10:03 /dev/video0

   You see that you can use this video device if you're root user, or if you belong to the "video" group. Let's check:
   grep video /etc/group
   My output is:
   video:x:18:tux
   (My user "tux" can use this video device.)

   And finally I can install the package "guvcview" and run the command "guvcview" from terminal, and it write so more info, and after seconds I can see my face in the window. My web camera works!
   (But it's pretty small: 320x240px, and pretty slow: 2 to 4.5fps)
   

   Good luck!

   ________
   PS. Forgot to mention, seems package "libv4l" is also required.

   Posted 8 years ago #
9. 

   Linux Forever
   

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   uname -a:
   Linux West 3.2.53-slitaz #4 SMP Wed Mar 25 11:33:01 CET 2015 i686 GNU/Linux

   tazpkg -l | fgrep linux:
   /usr/libexec/tazpkg/list: line 204: title: not found
   grub4dos-linux 0.4.4 system-tools
   linux 3.2.53 base-system
   linux-agp 3.2.53 base-system
   linux-crypto 3.2.53 base-system
   linux-drm 3.2.53 base-system
   linux-firmware 3.2.53 non-free
   linux-media 3.2.71 base-system
   linux-sound 3.2.53 base-system
   linux-wireless 3.2.53 base-system
   syslinux 4.06 base-system
   syslinux-extra 4.06 system-tools
   util-linux-blkid 2.24 base-system
   util-linux-eject 2.24 base-system
   util-linux-getopt 2.24 base-system
   util-linux-mount 2.24 base-system
   util-linux-uuid 2.24 base-system
   /usr/libexec/tazpkg/list: line 204: _p: not found
   /usr/libexec/tazpkg/list: line 204: footer: not found

   depmod -a and dmesg | fgrep -C4 uvc and lsmod | fgrep uvc do nothing at all

   ls -l /dev/video* or ls -l /dev/video (I tried both)say ls: /dev/video*: No such file or directory
   ls: /dev/video: No such file or directory

   grep video /etc/group: video:x:18:West

   And when i try to open Guvcview from terminal or desktop it says:

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

   Posted 8 years ago #
10. 

    az_ua
    

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    > linux 3.2.53 base-system
    > linux-media 3.2.71 base-system

    This cannot work. Update your system - run tazpkg up
    then reboot

    another, faster way - you can get old version

    wget ftp://ftp.rz.uni-kiel.de/pub2/linux/slitaz/packages/cooking/linux-media-3.2.53.tazpkg

    and install it
    tazpkg -i linux-media-3.2.53.tazpkg

    Posted 8 years ago #
11. 

    llev
    

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    < off-topic >
    Oh, my! Aleksej, you're the double of Russell Crowe!
    < /off-topic >

    Posted 8 years ago #
12. 

    dussehra
    

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    thank you az_ua !!

    this solved my problem, i had the same linux kernel, with the same incorrect linux-media tazpkg

    slitaz is definately going to be my main distro now.

    Posted 8 years ago #
13. 

    Linux Forever
    

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    Sorry for the late reply,but thank you az_ua my problem is fixed!!!Now I just need to hope skype works...

    Posted 8 years ago #

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