[mythtv-users] Fixed!: Nvidia Sync to Vblank pegging cpu in X
J. Miller
mythtv.org at elvenhome.net
Sun Dec 17 00:25:56 UTC 2006
I've been fighting the scourge of myth causing X to consume 100% of the
CPU when Xv Sync to Vblank is turned on in nvidia-settings. Everything
works just fine with it unchecked but that is the only sync setting that
gives me a perfect picture with no tearing. Myth's native OpenGL sync
still tears a little. The problem turned out to be the modeline I was
using. It was a 1368x768 56Hz modeline which apparently triggered the
issue. I switched to a 1360x768 60Hz modeline and now everything works
peachy. X still starts consuming large amounts of CPU occasionally but
it quickly drops back down to the 2-4% range. I'm not 100% sure that it
was the refresh but a modeline change did the trick. Hopefully posting
this here will help point others that have the same problem in a new
direction.
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