MVP with 99.12 video stutter

[ASD]

Hi,

Having read hundreds of posts over the past couple of weeks I've still been unable to resolve a stutter viewing live TV either as live or as time shift. I have found that this stutter only occurs when the MVP is powered up.

System Detail.

Asus M2NPV-VM
AMD x2 3800 AM2 EE
1GB PC6400 (2x512)
Onboard Nvdia 6150 using 720p Component output to LCD
WinTV Nova-t 500 dual PCI tuner
WinTV Nova-t USB v3 tuner
250GB SATA system and media TV
400GB SATA media drive.

The other main use of this system is that it monitors a couple of CCTV cameras with a Geovision GV250 PCI security capture card and software. System requirements for this card are low and I can watch live TV with the security cameras running and the CPU usage hovers around 20%. This is split fairly evenly across both cores.

While recording 2 programs and viewing a third live Usage is peaks at 70% distributed evenly across the cores.

The MVP is wired via a 100mps router which also provides broadband and DCHP services. Reviewing the network log, a spike occurs every 5 or so seconds whenever the MVP is powered up. I figure that this is performing an image refresh or so as the GBPVR software shows on the TV connected to the MVP.

The stutter occurs at approx the same frequency and unplugging the network cable or turning off the MVP immediately stops it occurring.

The only thing that helped was changing the MVP priority switch in Config.xml to False so that the service runs as 'normal' vs. 'abovenormal'

Other things I've tried....

The network fix in the Wiki to enable off CPU processing of network commands

Defragging

Using a separate drive to record live TV

Different versions of the Mux, 5 or so Cyberlink, Ati, interview, Microsoft. Have sync issues with some versions but most are fine. I even have batch files for changing Muxes now so that I only have one version registered at a time.

Different version of the MVP dongle including the new beta Hau and an older 1.5 version posted by a different user.

Switching to the Nvidia Pure Video decoder.

I'm beginning to think that the only option is start working through the excess services on the system however before I do that I'd like to know if 99.12 is particularly prone to this issue and if so if an earlier version may be less susceptible to the stutter.

I've read that the 98.13 version performs better with the MVP. If I was to reinstall the earlier version, is it possible to retain the tuner config files and the recorded programs. I have a fair bit of TV to catch up on and it took quite a bit of time to get all the stations correctly tuned as here in the UK channels broadcast in different time slots.

Any help gratefully received.

Regards

ASD

[jksmurf]

Hi,

The stutter occurs at approx the same frequency and unplugging the network cable or turning off the MVP immediately stops it occurring.

ASD

ASD,

I had a similar issue, I just ended up switching off the MVP when watching on the PC. http://forums.gbpvr.com/showpost.php?p=1...stcount=41

k.

[martint123]

5 Seconds rings bells. I had the same. I think it may be when GBPVR updates the "recording next" screen on the main MVP menu. I got rid of it by editing the skin to remove this..... let me see if I can find the thread.....

here you go http://forums.nextpvr.com/showthread.php...ght=hickup

Martin

[ASD]

Thank you both.

I created a second skin and disabled the now and next on the MVP copy as suggested and the 5 second tick has now gone..... great.

With the MVP priority set to 'above normal' I still had a significant stall whenever the MVP was started up. Looking at the network log, a correlating burst of data is seen. I reverted the MVP priority back to normal priority and that too appears to have been resolved.

In addition, I quite high CPU usage whenever the recording service was used, eg. streaming to MVP. Changing the Mux back from Interview (where I'd left it) to cyberlink 1307 has dropped the CPU usage down to around 25% even when recording 1 prog, watching live TV via 720p and Live TV on the MVP.

All seems well.

Thanks again

ASD