[mythtv-users] Video playback w/ Nvidia XvMC blue screens problems out the wazoo

mythtv-users.mythtv.org at tgice.com mythtv-users.mythtv.org at tgice.com
Mon Jan 15 04:11:36 UTC 2007

Hi guys,

I posted a few weeks back about a problem I was having with video 
playback tearing on SD recordings on my Chaintech 7NIF2 motherboard w/ 
the onboard GeForce video adapter.

I was able to (temporarily, at least) solve those problems by switching 
back to a 7xxx version of the driver (from Gentoo's latest 8776), and 
ran on that for about a week.  Since then, I've been working on trying 
to get HD video to playback well on my Athlon XP 1800+ w/ 512MB of RAM 
(32MB shared to the onboard video) w/ XvMC (this is reasonable isn't it?).

So I've got MythTV (& mplayer for testing) configured for XvMC, and I'm 
reasonably sure all of that's correct.  Unfortunately, I've been messing 
with this for hours and hours.  Hopefully, I'm just missing something 
simple, b/c I have reason to believe that this hardware should at least 
be minimally capable of playing back at least 720p HD, possibly even 
1080i or p.  Actually, I have a friend who has very similar hardware (w/ 
a 2500+ and 1GB of RAM I think) and he's able to playback even 1080p now 
I think w/ very few if any problems.

Here're the primary symptoms I keep seeing over and over across 7xxx, 
8xxx & 9xxx series drivers w/ all kinds of various options, etc. 
(remember, I've been at this for over a week):

Once I start HD w/ XvMC, I get these errors in Xorg.0.log:

(WW) NVIDIA(0): WAIT (0, 10, 0x8000, 0x0000a428, 0x0000a428, 0)
(WW) NVIDIA(0): WAIT (0, 10, 0x8000, 0x0000a464, 0x0000a464, 0)
(WW) NVIDIA(0): WAIT (0, 4, 0x8000, 0x0000a4a0, 0x0000a4a0, 0)
(WW) NVIDIA(0): WAIT (0, 4, 0x8000, 0x0000a4b8, 0x0000a4b8, 0)
(WW) NVIDIA(0): WAIT (0, 4, 0x8000, 0x0000b808, 0x0000b808, 0)
(WW) NVIDIA(0): WAIT (0, 4, 0x8000, 0x0000cc3c, 0x0000cc3c, 0)
(WW) NVIDIA(0): WAIT (0, 4, 0x8000, 0x0000cc54, 0x0000cc54, 0)
(WW) NVIDIA(0): WAIT (0, 4, 0x8000, 0x0000ba2c, 0x0000ba2c, 0)

whenever things start to get crappy, *and* the other symptom that 
reliably comes up is that the playback part of the screen will go blue. 
  If it's SD 4:3 stuff, the whole screen is blue and if it's widescreen 
HD, only the widescreen part will be blue.  Also, once it's gone blue, 
the video playback for *anything* (including regular old SD stuff), all 
video playback seems to become hosed and I have to reboot to get SD 
playback back.  Very frustrating.

Does anyone have any idea what might be going on w/ this?  It's frankly 
driving me nuts.  I appreciate any leads you can give me. 
Nvidia-bug-report is attached.

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