[mythtv-users] liveTV using 100% CPU

Michael T. Dean mtdean at thirdcontact.com
Sun Jan 8 20:34:00 UTC 2006


Brian Wood wrote:

> On Jan 8, 2006, at 1:16 PM, Michael T. Dean wrote:
>
>> Are you using OpenGL vsync in xine?  I doubt it...
>
>Is there perhaps some way to prevent MythTV from using this  
>"feature"? This is in fact what seems to be firewalling (in the  
>automobile sense) the CPU.
>
>
>I have issues that are preventing me from easily regressing to an  
>older nVidia driver, and it would be nice to get the load down if I can.
>  
>
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.)

Mike


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