[linux-dvb] Problems with low signal strength

[Michael Schaefer <michael.schaefer@init-bs.com>]

Hi,

due to some environmental reasons the signal strength I get for certain 
transponders is rather low. It is enough to get a lock, but sometimes the 
lock is lost. Which is of cause not a problem of the driver, but I 
experience strange behaviour in that cases, which range from outcom errors 
to StopHwFilter errors, Frozen pictures that do not recover after the lock 
is back and Arm crashes.

One problem often occurs is that if I use DEMUX_STOP/close on my 
filedescriptors for things like pmt/pat/eit after the lock gets lost, it is 
sometimes not possible to re-establish the demux with open/DEMUX_START 
again. From time to time the kernel logs 'StopHWFilter error's, but not 
always. Most of the time in that cases I get those outcom errors (or 
timeouts).

I am using a WinTV Nexus board with the cvs driver and the 2615 firmware. 
The software the problem occurs with is an own project, but I had that 
problems with an older firmware and vdr too.

Any ideas how to solve that problem or give you more information that 
someone else can do that?

Michael

  ---                                               Michael Schaefer
| I N |                                             INIT GmbH
| N T |                                             Am Oelper Berge 9
  ---                                               38114 Braunschweig

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Never attribute to malice what could as well be explained by stupidity.
                                                    - Hanlons razor -





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