[mythtv-users] VDPAU and VBlank

[R. G. Newbury]

Phil Wild wrote:
>> 2009-02-23 09:09:46.781 nVidiaVideoSync: VBlank ioctl did not work, unimplemented in this driver?
>> 2009-02-23 09:09:46.781 DRMVideoSync: Could not open device /dev/dri/card0, No such file or directory
> 
> 
> Just bumping this message as there was no response.
> 
>>From what I have found via google I don't think this is anything to
> worry about  so I'm wondering if there is a setting somewhere that I
> should switch to stop it trying to use this?

  These 2 reports are part of a series of stepwise tests which the 
frontend goes through in .../mythtv/libs/libmythtv/vsync.cpp. These are 
not really error messages as such. You will see different output 
depending upon which video chip driver you are using, as they 
synchronize in different ways. You can stop obsessing.

As to exactly WHAT these tests *do*, I have no idea. I cannot follow the 
code sufficiently well to understand it at all! Kudos to the coders  who 
understand this stuff!


Geoff