"Klaus" == Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de> writes:
Klaus> I'm trying to switch from the old DVB driver to dvb-kernel.
Klaus> Since I still use a kernel 2.4 based system I'm using the
Klaus> dvb-kernel CVS driver version labeled "linux_2_4" as of
Klaus> yesterday.
Klaus> Although my initial tests yesterday looked good, I have
Klaus> meanwhile encountered a problem. Sometimes, when zapping
Klaus> through channels with VDR, channels on some transponders
Klaus> don't get tuned to (black picture, no sound). If I then
Klaus> switch back and forth between channels on the broken
Klaus> transponder and channels that work, at some point the
Klaus> transponder actually does get tuned to and I get a picture
Klaus> and sound.
Don't they tune, or don't they just set the PID correctly. I used to
have the problem with the newest version of the Nexus-S that I have.
The channel is tuned, but I have to set the PIDs twice. I
first got around it by adding a reset PID option to rtuxplayer (not
really nice), but then I changed the tuning or better the checking for
tuning lock in libdvb and the problem went away. Now I don't wait for
tuning events, but check for channel lock. This also works better for
some other cards and drivers and seems to speed up tuning.
Of course, I am not using the linuxtv.org drivers or firmware. But the
way the problem manifests itself seems to indicate a timing problem,
especially with the stv0299 on the Nexus-S.
Marcus