KNC1 TV-Station DVB-C Plus

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A DVB-C PCI card produced by KNC1 based on the Philips SAA7146.

As far as I know all revisions should work on Linux.

Details

The card has a CI connector (Cineview module add-on required) and it works fine on Linux. Tested CAMs:

CAM tests on KNC1 TV-Station DVB-C Plus
Type HW/SW version Application version Results
Mascom Alphacrypt (full) Official firmware 3.09 (flashable) Kaffeine
MythTV
Working fine

The card uses the budget-av driver in Linux.

MythTV finds two tuners on this card. SD recordings hardly impact the CPU utilization. Viewing or recording (non encrypted) HD content uses about 80% of my CPU capacity. (CPU Type?)

Kaffeine 1.0-svn3 works fine. Searching for channels worked after trying different "sources" (eg de-Muenchen) in the device settings dialoge of Kaffeine. HD video did not work propperly at first, but after altering the buffer in the file .kde/share/apps/kaffeine/xine-config it worked.

Search the lines

# engine.buffers.audio_num_buffers:230
# engine.buffers.video_num_buffers:500

and replace them by

engine.buffers.audio_num_buffers:300
engine.buffers.video_num_buffers:1800

The first line modifies the buffer of digital radio (DAB). While viewing HD-channels with Kaffeine the CPU-usage amounts up to 70% of one of 8 CPUs of a Core i7 920.