Hi all,

Have completed a test installation of R5B7 in the hope of improving LiveTV performance, but it has made it worse. With R5A3x entering LiveTV took about 3-4 seconds, with R5B7 this has almost doubled.

Anyone else seeing something similar or is it just me?

Jim.

No. Not here. It would help if you gave information on your hardware. There seems to be any issue w/ DVB-T.

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Did think about listing some hardware but the fact that 0.19 is worse than 0.18.1 seemed to indicate that it is not hardware related. Just fot the record it's a P4 celeron with 384MB RAM, MSI mobo with onboard SIS video & 2 x Nova-T DVB cards (one older Philips chipset & one newer connexant chipset).

Jim.

P.S. Just as a reference can you tell me approx how long it takes you to get LiveTV up from hitting the button.

I have 3 DVB-T (conexant) cards running on a Barton 2.5Gig system with 512Mb RAM and I'm getting much slower buffering in live TV. To make things worse CPU usage seems to be much greater in 0.19. I also thought an "upgrade" to 0.19 would help my live TV troubles......

EDIT: After tweaking the kernel a bit (namely CPU type) it's running a little quicker. Also XVMC seems to keep things to a minimum. Anyone got any other tweaks?

I am experiencing slow Live TV performance on 0.19 as well.
Hardware:
P4 1.8
1GB RAM
Gigabyte Mobo
PVR-350
300GB HD

0.18.1 use to took 3 seconds, 0.19 takes over 7 seconds

Also having a lost slower times entering live tv and changing channels.

r5b7 is great, and this is pretty much the only issue I have had so far.

athlon 1800, 700 odd mb of ram, 1 x dvico dvbt card, 1 x avermedia dvbt card in Aussie land...
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Thanks for all your input, sometimes it gives you hope when you know your not the only one with a problem. Some others are having difficulties too...

http://www.gossamer-threads.com/lists/m ... ers/182935

and there's a trac ticket too describing a similar problem....

http://svn.mythtv.org/trac/ticket/1511

I hope some of the Dev's are working on this one.

Jim.

Same experience here. I would put the delay down to ver 0.19 recording ALL LiveTV. I'm not a channel flipper ( I'm not intending to offend anyone ) so the delay does not bother me. Can LiveTV recording be switched off? If so, see if that makes a difference. LiveTV recording takes up much space on DVB-T recordings especially if the user leaves LiveTV on accidently ( 2 GB per hour ), thats why I transcode DVB-T recordings to MPEG-4. Transcoding will not be an option with LiveTV recording.

no turning off the recording of livetv is not has never been and most likely never will be an option in mythtv.

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Xsecrets

I too have a slower startup and channel change but I thought it might be due to slowness getting signal lock. I have to look at my Antenna as the recent cyclone may have moved it a bit.

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R8.1 combined backend/frontend
ASUS P7H55-M Pro
Intel i3-550, 4Gb Ram
Seagate 500GB (Sata)
2x Dvico DVB-T Lite & Sony PlayTV (usb twin tuner)
TP-Link TL-WN881ND PCIe wifi card (not working)
Logitech Harmony One remote, CoolerMaster ATC-S case

I think you misunderstand what I mean. Can you make LiveTV behave like it did in Myth 0.18? i.e. NOT record to /myth/tv folder by default. I seem to be having problems with the LiveTV recording taking preference over scheduled recordings. I will need to do more testing. But I would just like to switch it off for now. Like it was in Myth 0.18, no temporary LiveTV recordings in the /myth/tv folder.

not that I'm aware of.

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Xsecrets

R5B7 -> if it helps, I noticed the slow LiveTV as well.

Intel P4
384 MB of RAM
PVR-250
GeForce 5200

-Nick

MythTV 0.19 is recording LiveTV ALL the time. i.e. as I switch from channel to channel, the LiveTV of each channel change is recorded at least for 1 day depending on your settings. This semi-permanent recording of LiveTV is illogical and IS creating problems ( at least with DVB-T ). NOTE: This problem did NOT occur with MythTV 0.18 on the SAME hardware. MythFrontend has quit twice when switching to LiveTV and the backend has quit once ( never happened with 0.18 ). There must be a way of switching it off. This is not a whinge at KnoppMyth developers, I'm just making people aware of the problem. The MythTV developers must know about this too.

I guess you need to go file a bug report over on mythtv. There is nothing knoppmyth development can do about this, and once again I'm 98% certain there is no way to turn it off, but only the mythtv developers could tell you 100%. Note most people myself included are not having problems with it, other than it's a bit slower than it used to be. Not really sure why it's slower, because I can start a recording and get to within 3 sec of live, but if I do livetv I can only get 5-7sec of live.

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Xsecrets