[mythtv-users] Jerky video & prebuffering pause messages with MergedFB multi-screen setup
david at allpowerfuldave.com
Mon Jun 5 19:22:17 UTC 2006
Thanks for the suggestion. I tried disabling the realtime priority
option, but it didn't seem to make any difference. As a variation, I
also tried running mythfrontend as root so it could take advantage of
the realtime priority threads, but that didn't make any difference either.
Any other suggestions?
Michael Lynch wrote:
> On 6/5/06, Gee, David <david at allpowerfuldave.com> wrote:
>> I have a dual-head setup using the DVI and VGA outputs on my ATI Radeon
>> 9200SE video card. Xorg is set up to use the "radeon" driver, and it
>> uses the driver's MergedFB option for the dual-headedness, because I
>> understand it's better than the generic Xorg multi-head capabilities
>> (and also I couldn't get the Xorg native stuff to work). Anyway, when I
>> attempt to play TV through Myth, it's very jerky (like 1 second of
>> audio/video, then a few seconds pause, etc.), and the console outputs
>> the following stuff.
>> 2006-06-05 18:58:21.037 TV: Changing from None to WatchingLiveTV
>> 2006-06-05 18:58:21.058 Realtime priority would require SUID as root.
>> 2006-06-05 18:58:21.133 Video timing method: DRM
>> 2006-06-05 18:58:24.240 NVP: prebuffering pause
>> 2006-06-05 18:58:27.329 NVP: prebuffering pause
>> 2006-06-05 18:58:30.431 NVP: prebuffering pause
>> 2006-06-05 18:58:31.032 New DB connection, total: 3
>> 2006-06-05 18:58:31.041 Connected to database 'mythconverg' at host:
>> 2006-06-05 18:58:31.961 rebuffering (7221 32768)
>> 2006-06-05 18:58:32.101 rebuffering (19993 32768)
>> 2006-06-05 18:58:33.629 NVP: prebuffering pause
>> 2006-06-05 18:58:33.873 rebuffering (19901 32768)
>> 2006-06-05 18:58:34.333 rebuffering (1549 32768)
>> 2006-06-05 18:58:37.026 NVP: prebuffering pause
>> 2006-06-05 18:58:40.123 NVP: prebuffering pause
>> 2006-06-05 18:58:42.936 TV: Attempting to change from WatchingLiveTV to None
>> 2006-06-05 18:58:43.230 TV: Changing from WatchingLiveTV to None
>> 2006-06-05 18:58:43.242 Enable DPMS
>> This never used to happen when I was running in single head mode and I'm
>> not quite sure what to do to fix it so I'd appreciate some suggestions.
>> I'm running the latest version of Myth and the ivtv drivers, and I have
>> a Hauppauge WinTV PVR 150 PAL TV card.
>> Thanks in advance
>> David Gee
>> mythtv-users mailing list
>> mythtv-users at mythtv.org
> I had a similar problem with an nvidia card and had to turn off
> 'realtime priority' in one of the myth frontend menus. I'm at work
> right now so I don't have the menus in front of me to find it.
> After turning this off, the pauses/jerkiness stopped.
> mythtv-users mailing list
> mythtv-users at mythtv.org
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