[mythtv-users] XvMC output not working
P Milazzo
pgm0203 at comcast.net
Tue May 24 03:50:02 UTC 2005
>>>>>>>>>>> Well XvMC was working for me just last evening. I had to restart X this
>>>>>>>>>>> morning for some reason or another, and now it is again not working with
>>>>>>>>>>> that same BadAlloc error. What can be causing these anomolies?
>>>>>>
>>>>>
>>>>> That was the same giveaway for me this morning too, the color OSD.
>>>>>
>>>>> I would think my machine should be able to handle HD without xvmc, but
>>>>> it can't.
>>>>>
>>>>> Athon64 3200+
>>>>> 1 Gig PC3200 Ram
>>>>> Asus 68V SE Deluxe
>>>>> Nvidia 6600 GT
>>>>> Gentoo Linux 2005.0 (Compiled in 64 bit)
>>>>>
>>>>> I'm completely taxed and lagging away on hd without xvmc in myth. It
>>>>> plays fine with about 90 percent cpu usage in mplayer. With xvmc I'm at
>>>>> about 60-70 cpu usage (when its working).
>>>
>>> That's weird cause my frontend is an Athlon64 3000, 512megs, the
>>> videocard is a cheap 6200 PCI Express card and using the soundcard on
>>> the motherboard I can get by without XvMC. I'm running Centos 4 but
>>> that doesn't really matter much and I'm running a build of 2.6.12-rc3.
>>
>>
>I'm running a variation of a 2.6.11 kernel, however I really doubt that
>would be the cause. I'm using an audigy 2, so I would doubt that would
>be it either. Hmm well I'm not sure what to think.
>
My XvMC is similarly intermittent. At first it consistently fails, then
suddenly starts working; at that point it will continue to work until I
terminate that particular X session. I also have an Athlon64-based
machine; I sense a pattern here. Perhaps a word-size difference is
causing an uninitialized field in the XvMC implementation or client
protocol exchange?
I tried enabling XvmcUsesTextures, but it had no effect.
FYI, my system (Athlon64 3500+, MSI K8N Neo Platinum, 1GB PC3200 RAM,
GeForce FX5200 AGP 8x) can display 1080i live TV in Myth with about 66%
CPU utilization using Xv, and about 33% CPU utilization using XvMC. I'm
running SuSE 9.2 with a 2.6.11.7 kernel and using the 1.0.7174 nVidia
driver.
- Paul Milazzo
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