UbuntuHelp:Install IVTV Troubleshooting/PreFeisty

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https://help.ubuntu.com/community/Install_IVTV_Troubleshooting/PreFeisty

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ivtv-firmware has no installation candidate

If when trying to install the firmware, you encounter an error similar to:

supermario@portablemario:~$ sudo apt-get install ivtv-firmware
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package ivtv-firmware is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package ivtv-firmware has no installation candidate

This likely means you had a typo when adding the firmware repository to your /etc/apt/sources.list Recheck /etc/apt/sources.list and make sure that you properly added the repository that you are getting your firmware from.

unable to open firmware

If you have properly installed the ivtv-firmware package, you will have the firmware in /lib/firmware

$ ls /lib/firmware/v4l*fw -l
-rw-r--r-- 1 root root 262144 2006-12-18 14:58 /lib/firmware/v4l-cx2341x-dec.fw
-rw-r--r-- 1 root root 262144 2006-12-18 14:58 /lib/firmware/v4l-cx2341x-enc.fw
-rw-r--r-- 1 root root  16382 2006-12-18 14:58 /lib/firmware/v4l-cx25840.fw

If you are still encountering errors in dmesg similar to this:

[17179588.876000] ivtv0: unable to open firmware v4l-cx2341x-enc.fw
[17179588.876000] ivtv0: did you put the firmware in the hotplug firmware directory?
[17179588.876000] ivtv0 warning: failed loading encoder firmware
[17179588.876000] ivtv0 warning: Error loading firmware -3!
[17179588.876000] ivtv0: Error -3 initializing firmware.
[17179588.876000] ivtv0: Error -12 on initialization
[17179588.876000] ivtv: probe of 0000:02:08.0 failed with error -12

You should try cold-booting the machine. This involves shutting the machine down, and REMOVING power from the machine. This forces the firmware to be cleared from the memory on the Hauppauge card. A warm boot won't necessarily do this. After powering down, unplug the power cord from your computer and hold the power button down for 3-5 seconds. This will fully discharge power from your system. Plug in and boot.