Hi Klaus, Klaus Schmidinger schrieb: > Maybe there's a problem with your multiswitch? > When the second or third device changes the transponder, there shouldn't > be any interference with the first device. I don't know. But the switching did occur before this patch, too, didn't it? I'll investigate further. > I have attached a slightly modified version of the patch, which > avoids error messages like > > ERROR (dvbdevice.c,157): Value too large for defined data type > > when clearing the event queue. It also returns the current frontend status > even if there was no event, and logs the channel number and transponder > in case of a timeout. As far as I can see the timeouts always happen > on transponders that are currently not broadcasting, or use very low > symbol rates, which my full featured second device can't handle. This additional output makes it clearer: what is channel 0? And 'Al Jazeera' or a program a channel 1673 indeed is nothing, I regularly need to receive. ;-) At least this UPT and VDSB, which annoy me since 1.3.xx, have gone. Martin