[mythtv-users] Video Tearing

[Jay Foster]

I'm setting up a new mythbuntu 14.04.1 system with an nvidia GT730 video 
card (nvidia 331 driver).  I am trying to get rid of the tearing.  I 
have been following the suggestions at 
http://www.mythtv.org/wiki/Frame_display_timing, but I am not having any 
success.  I have added the udev rule to change permissions on /dev/rtc 
and verified that they are correct.  I have added an entry to 
/etc/sysctl.conf to set the max-user-freq and verified that it is correct.

The output of mythtvfrontend.real -v playback:
2014-10-18 19:06:55.555103 I  VDP: GetFilteredDeint() : xv-blit -> 
'linearblend'
2014-10-18 19:06:55.555437 I  FilterManager: GetFilterInfo(convert) 
returning: 0x0
2014-10-18 19:06:55.555446 I  FilterManager: GetFilterInfo(linearblend) 
returning: 0x3d7b320
2014-10-18 19:06:55.555468 I  VideoOutput: Using deinterlace method 
linearblend
2014-10-18 19:06:55.555482 E  VSYNC: DRMVideoSync: VBlank ioctl did not 
work, unimplemented in this driver?
2014-10-18 19:06:55.555498 E  VSYNC: RTCVideoSync: Could not set RTC 
frequency:
            eno: Permission denied (13)
2014-10-18 19:06:55.555687 I  Player(0): Video timing method: USleep 
with busy wait
2014-10-18 19:06:55.555697 I  Player(0): Display Refresh Rate: 59.869 
Video Frame Rate: 59.941
2014-10-18 19:06:55.555703 I  Player(0): SetFrameInterval ps:1 scan:1
2014-10-18 19:06:55.556536 I  playCtx: StartPlaying(): took 0 ms to 
start player.


ls -l /dev/rtc*
lrwxrwxrwx 1 root root      4 Oct 18 19:05 /dev/rtc -> rtc0
crw-rw-rw- 1 root root 254, 0 Oct 18 19:05 /dev/rtc0

cat /proc/sys/dev/hpet/max-user-freq
1024

Any ideas on what to try next?

Jay