Brian Wood wrote:
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.)
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.
What about using 0.18-fixes SVN? Don't know Gentoo, but 0.18-fixes SVN
is very close to 0.18.1, so I'd guess other than getting different
source code, everything would be identical. And, with the -fixes
branch, you can enable OpenGL vsync for the build and disable it at
runtime with the setting.
Mike
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