Creative Live Optia Pro Webcam

Message

kmacphail · Post by **kmacphail** » Thu Jan 21, 2010 12:03 am

Gentoo doesn't seem to be able to detect my Creative Live Optia Pro webcam. It is connected via the USB and has a built in microphone. Gentoo appears to pick up the microphone part no problem, however I am not able to get the webcam part working. Skype appears to be working, but it says that no webcam is detected but it is able to pick up the sound from the microphone. Any ideas, did anybody else have this problem?

I don't know if this is any use, but here is the amazon technical specs for the webcam:
http://www.amazon.co.uk/Creative-Live-C ... =de_a_smtd

cach0rr0 · Post by **cach0rr0** » Thu Jan 21, 2010 2:16 am

have you added yourself to the 'video' group?

reason:

Code: Select all

crw-rw----+ 1 root video 81, 0 Jan 16 17:15 /dev/video0

The other part, do you have a /dev/video0 ? If not, have you included USB_VIDEO_CLASS in your kernel?

kmacphail · Post by **kmacphail** » Thu Jan 21, 2010 7:41 am

My user is a member of the video group, however after checking I do not have /dev/video0

have you included USB_VIDEO_CLASS in your kernel

I'm not sure what you mean by that, can I add it now or is it a kernel rebuild?

kmacphail · Post by **kmacphail** » Sun Feb 07, 2010 9:56 am

I have found out that my webcam is a uvc, I've never needed to know much before as with previous distros the webcam 'just worked'

When I try to install the Linux-uvc app it results in the following output:

emerge -av linux-uvc

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild N ] media-video/linux-uvc-0.1.0_pre250 0 kB

Total: 1 package (1 new), Size of downloads: 0 kB

!!! The following installed packages are masked:
- net-im/skype-2.0.0.72 (masked by: skype-eula license(s))
A copy of the 'skype-eula' license is located at '/usr/portage/licenses/skype-eula'.

- app-emulation/emul-linux-x86-java-1.6.0.17 (masked by: dlj-1.1 license(s))
A copy of the 'dlj-1.1' license is located at '/usr/portage/licenses/dlj-1.1'.

For more information, see the MASKED PACKAGES section in the emerge
man page or refer to the Gentoo Handbook.

Would you like to merge these packages? [Yes/No] y

>>> Verifying ebuild manifests

>>> Emerging (1 of 1) media-video/linux-uvc-0.1.0_pre250
--- Invalid atom in /etc/portage/package.use: aac
--- Invalid atom in /etc/portage/package.use: embedded
--- Invalid atom in /etc/portage/package.use: svga
* linux-uvc-0.1.0_pre250.tar.bz2 RMD160 SHA1 SHA256 size ... [ ok ]
* checking ebuild checksums ... [ ok ]
* checking auxfile checksums ... [ ok ]
* checking miscfile checksums ... [ ok ]
* CPV: media-video/linux-uvc-0.1.0_pre250
* REPO: gentoo
* USE: amd64 elibc_glibc kernel_linux multilib userland_GNU
* Determining the location of the kernel source code
* Found kernel source directory:
* /usr/src/linux
* Found kernel object directory:
* /lib/modules/2.6.31-gentoo-r6/build
* Found sources for kernel version:
* 2.6.31-gentoo-r6
* Checking for suitable kernel configuration options...
* CONFIG_VIDEO_DEV: is not set when it should be.
* Please check to make sure these options are set correctly.
* Failure to do so may cause unexpected problems.
* Once you have satisfied these options, please try merging
* this package again.
* ERROR: media-video/linux-uvc-0.1.0_pre250 failed:
* Incorrect kernel configuration options
*
* Call stack:
* ebuild.sh, line 54: Called pkg_setup
* linux-uvc-0.1.0_pre250.ebuild, line 24: Called linux-mod_pkg_setup
* linux-mod.eclass, line 585: Called linux-info_pkg_setup
* linux-info.eclass, line 888: Called check_extra_config
* linux-info.eclass, line 782: Called die
* The specific snippet of code:
* die "Incorrect kernel configuration options"
*
* If you need support, post the output of 'emerge --info =media-video/linux-uvc-0.1.0_pre250',
* the complete build log and the output of 'emerge -pqv =media-video/linux-uvc-0.1.0_pre250'.
* The complete build log is located at '/var/tmp/portage/media-video/linux-uvc-0.1.0_pre250/temp/build.log'.
* The ebuild environment file is located at '/var/tmp/portage/media-video/linux-uvc-0.1.0_pre250/temp/die.env'.
* S: '/var/tmp/portage/media-video/linux-uvc-0.1.0_pre250/work/linux-uvc-0.1.0_pre250'

>>> Failed to emerge media-video/linux-uvc-0.1.0_pre250, Log file:

>>> '/var/tmp/portage/media-video/linux-uvc-0.1.0_pre250/temp/build.log'

* Messages for package media-video/linux-uvc-0.1.0_pre250:

* CONFIG_VIDEO_DEV: is not set when it should be.
* Please check to make sure these options are set correctly.
* Failure to do so may cause unexpected problems.
* Once you have satisfied these options, please try merging
* this package again.
* ERROR: media-video/linux-uvc-0.1.0_pre250 failed:
* Incorrect kernel configuration options
*
* Call stack:
* ebuild.sh, line 54: Called pkg_setup
* linux-uvc-0.1.0_pre250.ebuild, line 24: Called linux-mod_pkg_setup
* linux-mod.eclass, line 585: Called linux-info_pkg_setup
* linux-info.eclass, line 888: Called check_extra_config
* linux-info.eclass, line 782: Called die
* The specific snippet of code:
* die "Incorrect kernel configuration options"
*
* If you need support, post the output of 'emerge --info =media-video/linux-uvc-0.1.0_pre250',
* the complete build log and the output of 'emerge -pqv =media-video/linux-uvc-0.1.0_pre250'.
* The complete build log is located at '/var/tmp/portage/media-video/linux-uvc-0.1.0_pre250/temp/build.log'.
* The ebuild environment file is located at '/var/tmp/portage/media-video/linux-uvc-0.1.0_pre250/temp/die.env'.
* S: '/var/tmp/portage/media-video/linux-uvc-0.1.0_pre250/work/linux-uvc-0.1.0_pre250'

By the looks of the error message I have an issue with CONFIG_VIDEO_DEV but am unsure as to what to do exactly.

Hardware info: Video card NVIDIA 6800GT 512MB

Post by **NeddySeagoon** » Sun Feb 07, 2010 11:57 am

kmacphail,

Code: Select all

* Checking for suitable kernel configuration options...
* CONFIG_VIDEO_DEV: is not set when it should be.
* Please check to make sure these options are set correctly.

CONFIG_VIDEO_DEV is a kernel configuration symbol.

You need to rebuild your kernel with that symbol on.

Its found under Multimedia support, where its called <M> Video For Linux.

Further, if your cam needs UVC support, do not use

Code: Select all

emerge media-video/linux-uvc

that's old.
UVC support has been moved into the kernel. Use the in kernel UVC.

Code: Select all

  │ │    --- V4L USB devices                  
  │ │    <M>   USB Video Class (UVC)

Modules are preferred in case you need to pass a module parameter at module load time.

kmacphail · Post by **kmacphail** » Sun Feb 07, 2010 6:05 pm

Slight issue with rebuilding the kernel, after two unsuccessful attempts at building the kernel I opted for genkernel. Can I add CONFIG_VIDEO_DEV on top of my existing settings or do I need to defeat my demons and manage a manual build of the kernel?

Post by **NeddySeagoon** » Sun Feb 07, 2010 6:42 pm

kmacphail,

Use the genkernel option --menuconfig
It will then open menuconfig so you can set your own options. genkernel will contine when you close menuconfig.

You could use one of Pappys Seeds too. See the link in Pappys sig

kmacphail · Post by **kmacphail** » Wed Feb 10, 2010 9:01 am

A very belated thank you to NeddySeagoon, I re-compiled the kernel effectively and my webcam now is fully functional

. The only issue I had was when I recompiled the kernel I had to reinstall the NVIDIA driver, when x started it was a blank screen, but this took less than 5 minutes to install, but worth mentioning in case anybody else has the problem.