[mythtv-users] Video Tearing

[Jay Foster]

On 10/19/2014 4:40 PM, blisbell . wrote:
>
>
> On Sun, Oct 19, 2014 at 6:42 PM, Jay Foster <jayf0ster at roadrunner.com 
> <mailto:jayf0ster at roadrunner.com>> wrote:
>
>     On 10/19/2014 11:05 AM, Peter Bennett (cats22) wrote:
>
>         On 10/18/2014 11:32 PM, Daryl McDonald wrote:
>
>
>
>             On Sat, Oct 18, 2014 at 10:21 PM, Jay Foster
>             <jayf0ster at roadrunner.com <mailto:jayf0ster at roadrunner.com>
>             <mailto:jayf0ster at roadrunner.com
>             <mailto:jayf0ster at roadrunner.com>>> wrote:
>
>                 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
>                 _______________________________________________
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>             <mailto:mythtv-users at mythtv.org
>             <mailto:mythtv-users at mythtv.org>>
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>                 MythTV Forums: https://forum.mythtv.org
>
>
>             I have better luck with the 304 driver, and tearing with
>             the 331.
>
>
>
>         Did you disable composite?
>
>         Run sudo nvidia-xconfig --no-composite
>         OR, add this to /etc/X11/xorg.conf or a file in /etc/xorg.conf.d:
>         Create file /usr/share/X11/xorg.conf.dG/55-mythtv.conf, or
>         /etc/X11/xorg.conf
>         Section "Extensions"
>              Option             "Composite" "Disable"
>         EndSection
>         NOTE This is incompatible with unity desktop in 13.04 and later
>         You will have to install and use xfce desktop manager instead
>         of unity
>         Peter
>
>
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>
>     I have:
>     Section "Extensions"
>         Option         "Composite" "Disable"
>     EndSection
>
>     in /etc/X11/xorg.conf.  No difference.
>     I cannot run nvidia-xconfig.  It crashes.  There is a bug entered
>     for this on launchpad.
>
>     Jay
>
>
>
> You could try the latest driver here it's the nvidia-343 package.
> http://www.ubuntuupdates.org/ppa/xorg-edgers?dist=trusty
>
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>
>
>
>
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For a point of reference, I installed xbmc.  Video playback is excellent 
with xbmc.  Same driver, same xorg.conf, etc.  This looks more like a 
MythTV configuration issue.
It is actually nvidia-settings that crashes, not nvidia-xconfig (my poor 
memory).
Jay
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