Arch Linux

The saa7127 module is missing which causes problems for certain PVR owners (namely Hauppauge PVR-350)

Here is how to enable it:

Device Drivers
enter:
Multimedia devices
enter:
Video Capture Adapters
select:
[*] Autoselect pertinent encoders/decoders and other
helper chips
remove astrix, hit <SPACE>
[ ] Autoselect pertinent encoders/decoders and other
helper chips
enter:
Encoders/decoders and other helper chips
select:
< > Philips SAA7127/9 digital video encoders (NEW)
set 'M', hit <SPACE>
<M> Philips SAA7127/9 digital video encoders
Exit and Save

~grep -i saa7127 .config
CONFIG_VIDEO_SAA7127=m

Source: http://www.gossamer-threads.com/lists/ivtv/users/35059