DVB-T Users a quick question?

[herbs]

Hi,

Is your card stable in gbpvr? I have the nova-t 909 it seems to hog the recording service and doesn't release it properly. I have to restart it 6 out of 10 times. Also switching channels can also cause it to dump back to the epg screen or main menu, this doesn't happen 100% but more often than not . This doesn't release the card as in the recording service you can see it states the card is still in use.
It doesn't matter what mpeg codec I use the problem still occurs. I'm beginning to think its a problem with the mpgmux.ax and gbpvr. I know dvb support has only just began so it could have a few problems that need ironing out.

[Guy]

Yup mine is a 9002 nova T card and I have same problem - nine times out of ten when its recording the CPU usage goes to 100% and machine has to be rebooted. Like you I've fiddled with all manner of mpg filters, but always same outcome. Currently only using a PVR 150 in GBPVR until I can figure a more stable solution out.

Just tried new version 9.10 with Nova - T. Can't get anything working just at the moment (well finally got it scan for channels properly, but the picture/sound is v.v.jerky - probably just the way I've installed it...need to fiddle a bit longer.)


guy.

[bgowland]

Not 100% stable yet but things are getting much better. I have two Nova 90002 cards and I'm occasionally seeing droputs if both are recording at the same time as one of my analogue cards and the analogue card finishes recording first - both Nova recordings just stop increasing in file size but the recording status shows they're still going until I restart the recording service - it doesn't happen every time though which is making things hard to track down.

On the CPU usage issue - I see 6-10% usage with both cards recording - I'm using 0.91.5 with Cyberlink mux.

Cheers,
Brian

[Guy]

Update on my own system's stability:

I have now managed to get rid of the 100% CPU usage problem. This, I think, was being caused by a mux filter called PDMPGMUX.AX which is installed by cyberlink's powercinema alongside mpgmux.ax. This seems to be an audio mpeg filter....system seems to work fine without it (on the PC at least).

Well system nearly works fine....I'm now moving on to the problem that results from not having PDMPGMUX - GBPVR and recording service are crashing when I try to use the MVP to view live TV (with PDMPGMUX installed, playback on the MVP works occasionally, but then hits 100% cpu usage - without it, the whole service crashes immediately the MVP requests a live TV stream).

Ho Hum one step closer I suppose.

g.

[bgowland]

Well system nearly works fine....I'm now moving on to the problem that results from not having PDMPGMUX

I don't understand what pdmpgmux.ax could have to do with any problems (with or without it). As far as I understand it, all you need is either the Cyberlink mpgmux.ax or the Intervideo one (ivimux.ax) or the ShowShifter one (mpegwriter.ax I think). I so far use the Cyberlink mpgmux.ax and don't have any file called pdmpgmux.ax anywhere on my system.

I'm still seeing truncated recordings when using both my Novas and one analogue card at the same time but I'm fast coming to the conclusion this is an IRQ sharing issue. More tests to be done on that one.

Cheers,
Brian

[jui]

Hi,

I got the Nova T 90002 and use the 0.91.8 software but can not get it to find any channels during scan. I installed the mpgmux.ax and i find all channels with hauppauges software in excellent quality. There is no frequency offset in the channel listing of the hauppauge software.

Can you help me how to get it run?

@guy: it seems you had problems with scanning as well.

Greetings
Jui

[Chris.Day]

jui, what transmitter do you receive from?

[Puck]

Hi,

I got the Nova T 90002 and use the 0.91.8 software but can not get it to find any channels during scan. I installed the mpgmux.ax and i find all channels with hauppauges software in excellent quality. There is no frequency offset in the channel listing of the hauppauge software.

Can you help me how to get it run?

@guy: it seems you had problems with scanning as well.

Greetings
Jui

Although I'm using Twinhan DVB-T cards, I experienced the same issue during a scan with 0.91.8. Got round it by selecting 'All Regions' & 'All channels', than scanning, which took longer, but forund them all.

Give it a try.

[Guy]

@guy: it seems you had problems with scanning as well.

Yes I did, though to be honest, I don't really know how I fixed it. I had a problem where no channels were found and then GBPVR crashed on no channels found during scan (I think this is one of bugs now fixed in latest maintenance release). When I tried the second time around, I did a fresh install of my nova-t card and completely cleaned the registry of everything and anything to do with hauppauge before re-installing the nova t drivers. This seemed to do the trick & it then scanned all channels fine - but I've no idea why.

I don't understand what pdmpgmux.ax could have to do with any problems (with or without it). As far as I understand it, all you need is either the Cyberlink mpgmux.ax or the Intervideo one (ivimux.ax) or the ShowShifter one (mpegwriter.ax I think)

Hi BG - I don't really understand why either. When I used Filmerit (from http://paul.glagla.free.fr/filmerit_en.htm - great little piece of software) I could see that there was more than just the mpgmux.ax installed on my system - the PDmpgmux.ax filter is (i think) an mpeg audio filter of some kind that gets installed with cyberlink cinema. All I know is that once I had unregistered this filter, then the system stopped going to 100% CPU usage on each attempted recording. I re-registered and un-registered it a couple of times & 100% cpu usage bug was very definitely reproducible with it registered.....

I'm still getting a GBPVRrecordingservice.exe crash when I try to fire up the MVP to get live TV (but is totally stable on the PC). I might try the other filters you mentioned to see if they make a difference...


guy

[bgowland]

I'm still getting a GBPVRrecordingservice.exe crash when I try to fire up the MVP to get live TV (but is totally stable on the PC). I might try the other filters you mentioned to see if they make a difference...

I don't use Live TV on the MVP very often but I just did a few tests to see what happens with the digital channels on the Nova.

If you watch TV on the PC with Preview mode enabled there is no recording to disk going on so it doesn't use any MPEG2 mux filters. If you watch TV on the MVP, it buffers to disk first, i.e., it records therefore needs to use a mux filter. I think trying the other filters would definitely be worth doing.