2010-03-18, 12:27
Good Morning All
Please excuse the long post, wanted to add as much detail as possible (pastebin etc to follow). I've resurrected this after the great crash and updated it a little.
I have a 3610 set up for media center front end duties, mostly everything is working well but I do have one glitch with video playback and, after spending quite a bit of time with configurations, searching and tweaking I cant quite get it resolved. I suspect (from other postings) this may be something being resolved in development that is going on, can anyone help.
Firstly my general configuration:
My system is set up so that it boots up and starts mythTV frontend, pressing livetv on the remote then kills that and fires up XBMC, pressing live tv again on the remote kills XBMC and fires up mythTV frontend (all family friendly)
The Revo plays 720 and 1080p seemingly with no issues from both my LAN / mythTV backend and from the revo local drive but every now and again there will be a slight stutter or frame drop. The TV is refresh matching to 24/50/60 so this isnt pull down and its not standard film jitter.
Taking a look in .xbmc/temp/xbmc.log shows a number of entries (I'm at work at the mo and will update this post later / put in a pastebin but here's what I have handy) that say
Sometimes this is accompanied by a frame drop sometimes not. Watching a known, good H264 (1080p / DTS) encode from a BluRay disc of UP! gave a total of 44 frame drops in the whole movie (worst case, best case was 16), most of which occurred at the begining when the LAN synced up etc and the screen switched to 24hz.
I've tried the usual steps:
* Ubuntu visual effects disabled
* composite disabled
* twinview disabled
* noflip set to true but then removed (caused tearing)
I also tried updating the drivers to the 195 entry but that totally borked MythTV frontend and it was a painful experience to get the older drivers back on and get MythTV frontend back up and running again (one whole saturday in fact, my WAF was very loooow at this point )
Does anyone know if this is an XBMC issue? I think I've ruled out the LAN (happens on local files) and the revo seems to be running VDPAU etc correctly since this only happens at odd intervals. I suspected it could be something like powermizer but setting that (using the device option registry setting) to use mode 3/4 didnt make any difference.
I don't think I can use the stand alone version / boot straight into XBMC rather than gnome since I need to be able to switch to MythTV front end (this will hopefully cease to be a requirement once the new integration is available in future releases )
I'm willing to try an SVN / build release but haven't tried that yet so would need a guide of some kind.
If this is something that's been / being fixed then I'll just wait for the next release. Patience isn't a problem
Cheers for any help / advice you can all offer.
Edz
Please excuse the long post, wanted to add as much detail as possible (pastebin etc to follow). I've resurrected this after the great crash and updated it a little.
I have a 3610 set up for media center front end duties, mostly everything is working well but I do have one glitch with video playback and, after spending quite a bit of time with configurations, searching and tweaking I cant quite get it resolved. I suspect (from other postings) this may be something being resolved in development that is going on, can anyone help.
Firstly my general configuration:
Quote:Revo 3610 Dual Core
2 GB RAM
512 allocated to video memory
Ubuntu Karmic
Mythtv frontend
XBMC Camelot (NOT SVN)
LH423000 LCD TV (HDMI)
SPDIF to AMP (NO HDMI on AMP)
Desktop set to 1920x1080@50 (hello from the UK - set to 50 for MythTV frontend)
XBMC set to run at 1920x1080@50
Match refresh option on
Sync to audio : drop/dupe
Sync to display: Allow driver (also tried always on, switched off causes tearing)
NVIDIA driver is 185.13.36 (Reset after much pain from 195 after MythTV would no longer work!)
My system is set up so that it boots up and starts mythTV frontend, pressing livetv on the remote then kills that and fires up XBMC, pressing live tv again on the remote kills XBMC and fires up mythTV frontend (all family friendly)
The Revo plays 720 and 1080p seemingly with no issues from both my LAN / mythTV backend and from the revo local drive but every now and again there will be a slight stutter or frame drop. The TV is refresh matching to 24/50/60 so this isnt pull down and its not standard film jitter.
Taking a look in .xbmc/temp/xbmc.log shows a number of entries (I'm at work at the mo and will update this post later / put in a pastebin but here's what I have handy) that say
Quote:Decode - avcodec_decode_video didn't consume the full packet. size
Sometimes this is accompanied by a frame drop sometimes not. Watching a known, good H264 (1080p / DTS) encode from a BluRay disc of UP! gave a total of 44 frame drops in the whole movie (worst case, best case was 16), most of which occurred at the begining when the LAN synced up etc and the screen switched to 24hz.
I've tried the usual steps:
* Ubuntu visual effects disabled
* composite disabled
* twinview disabled
* noflip set to true but then removed (caused tearing)
I also tried updating the drivers to the 195 entry but that totally borked MythTV frontend and it was a painful experience to get the older drivers back on and get MythTV frontend back up and running again (one whole saturday in fact, my WAF was very loooow at this point )
Does anyone know if this is an XBMC issue? I think I've ruled out the LAN (happens on local files) and the revo seems to be running VDPAU etc correctly since this only happens at odd intervals. I suspected it could be something like powermizer but setting that (using the device option registry setting) to use mode 3/4 didnt make any difference.
I don't think I can use the stand alone version / boot straight into XBMC rather than gnome since I need to be able to switch to MythTV front end (this will hopefully cease to be a requirement once the new integration is available in future releases )
I'm willing to try an SVN / build release but haven't tried that yet so would need a guide of some kind.
If this is something that's been / being fixed then I'll just wait for the next release. Patience isn't a problem
Cheers for any help / advice you can all offer.
Edz