Re: LNB sharing interrupts recordings with Twinhan DVBS
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On 06.05.2012 01:29, Midas wrote:
Am 05.05.2012 16:31, schrieb Klaus Schmidinger:On 05.05.2012 09:22, Midas wrote:Hi there, i have two satellite devices in an lnb-sharing setup. As said in the topic since update to vdr 1.7.27 recordings do not put data on the disk anymore and AV liveview with the vdr-sxfe frontend freezes if bonding sets the Twinhan Card to master. The setup is Technisat Skystar HD and KWorld DVBS Satellite Card (clone of Twinhan VP1020), so it is DVBS2 and DVBS mixed. VDR is 1.7.27. I have been using vdr 1.7.21 before with lnb-sharing applied. In the old setup there was a similar problem in that switching to vertical didn't work reliably or at all respectively. I managed to overcome this behaviour by patching the Twinhan driver to eliminate _any_ voltage output on the card. Once i found a working patch vdr has been running for months without any problems anymore. Note that the 'new' issue occurs with the vanilla Twinhan driver and my patched version as well. Is it maybe possible to force the use of one card as Master bonding device or does anyone have other ideas to overcome the problems?If the master of a set of bonded devices doesn't get a signal, VDR should automatically switch the master to the next of the bonded devices. See cDvbTuner::Action(), case tsTuned: if (bondedTuner&& bondedMaster) bondedMasterFailed = true; // give an other tuner a chance in case the sat cable was disconnected Of course, making sure the devices work properly in the first place might be a good idea ;-)Do i get the term Master wrong? Master in my assumption should be the device where the liveview signal comes from unless there is a recording in which case the device tuned to the recording transponder should be Master.
In the context of device bonding "master" means the device that actually controls the LNB (either trough voltage/tone or DiSEqC). It has nothing to do with whether this device is used for live view or recording.
In the first case the slave cannot steal the tuning parameters to prevent breaking liveview whereas in the second the liveview slave cannot interefere with the ongoing recording. Concerning my issue the ongoing search for transponders on the non-liveview device seems to break with the liveview device which should not happen. Yet in case of recordings i am bit unsure what interferes with what. I am also still unsure if it is a driver or lnb sharing issue though the v/h issue in my former setup points to the first case at least for a certain kind. Do i conclude right, setting the bondedMasterFailed to false in the switch construct would be a dirty hack to workaround my bogus setup?
I'm not sure about that. I would suggest you use VDR with only one single device at a time and make sure it can receive all polarizations and bands. If a device or driver fails to deliver that, you should try to fix it. VDR assumes that a device actually works ;-) Klaus _______________________________________________ vdr mailing list vdr@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
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