[mythtv-users] Video Tearing
Jay Foster
jayf0ster at roadrunner.com
Mon Oct 20 16:47:31 UTC 2014
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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>
>
> 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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