Hmm....
I'm running 0.18.1 on a Gentoo system, and compiling outside the
"portage" system usually leads to trouble. I'm not sure what "USE"
flag indicated the use of vsync, "nVidia" probably did it.
I'm not sure which is going to be more of a pain, re-compiling MythTV
or getting an older version of nVidia's drivers to work, seems the
kernel API has changed and broken older video drivers.
I do not understand all this mucking around with a "production"
kernel. These guys who insist it must be "up to date" are the same
ones who keep checking for the fdiv bug, even on Xeon and Opteron
CPUs :-)
In SVN's frontend settings (Playback Settings, General playback
(page 1)):
Enable OpenGL vertical sync for timing
If it is supported by your hardware/drivers, MythTV will use OpenGL
vertical syncing for video timing, reducing frame jitter.
In MythTV 0.18 and 0.18.1, you have to recompile Myth without
OpenGL vsync. In MythTV 0.18-fixes SVN, you have the same option
as SVN. (Note that if you have one you think is 0.18.2, it's
probably 0.18-fixes SVN, so it probably has the option.)
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