I have a VDR box with three DVB-T tuners.. All cards are saa7146+tda10045 -based budget cards.

I have forced the cards to specific transponders in channels.conf. Basicly VDR never has to switch transponders, all channels are always tuned.

However, sometimes one of the cards looses sync and doesn't re-tune.. It's not always the same card, can be any of the three.

The problem is that VDR doesn't recover from this. If there is a timed recording going on that "jammed" tuner, VDR keeps on restarting over and over again, which effectively ruins recordings on all other channels as well. VDR restarting doesn't solve the problem, the card still doesn't tune.

I have tried killing VDR when the tuner is jammed, and then try tuning with tzap.. Tuning fails for the "already tuned" channel, but if I simply tune to another transponder and then back, it tunes fine. So apparently the problem is that VDR doesn't even try re-tuning because the tuners are "locked" to specific transponders in channels.conf..

I'm actually using VDR 1.4.7, I know it's old but otherwise it's working fine. Has there been any changes in this area in recent versions? So is it likely to fix my problem if I upgrade to latest developer version for example?