[mythtv] 2019-devel: lipsync drift

Mark Kendall mark.kendall at gmail.com
Wed Nov 27 18:47:42 UTC 2019


John

Are you using display resolution switching?

I've just noticed an issue with the display resolution changes I
pushed last week where it is creating/using display resolution
handling classes when it shouldn't be.

But I think your issues pre-date those commits??

I'll push a fix tomorrow.

Thanks for the perseverance:)
regards
Mark

On Wed, 27 Nov 2019 at 16:15, John Pilkington <johnpilk222 at gmail.com> wrote:
>
> I'm still seeing this slow drift in my el7 build of  mythfrontend
> version: devel/2019-render [v31-Pre-9dc72f3b810] www.mythtv.org
>
> and it seems likely to be connected to
> mythtv/libs/libmythui/DisplayResX.cpp tweaks at commit b8e27f1039 - and
> perhaps the reported lack of NVCtrl on this system.
>
> $ mythfrontend -v playback,libav
>
> 2019-11-27 13:40:22.479018 I  DispResX: Created
> 2019-11-27 13:40:22.479852 N  DispRes: Desktop video mode: 1440x900
> 74.984 Hz
> .......
> 2019-11-27 13:40:27.454064 I  DispResX: Raw/unsorted XRANDR modes:
> 2019-11-27 13:40:27.454090 I  1440x900  75.00   60.00
> 2019-11-27 13:40:27.454106 I  1280x1024 75.00   60.00
> 2019-11-27 13:40:27.454119 I  1280x960  60.00
> 2019-11-27 13:40:27.454132 I  1152x864  75.00
> ......
>
> 2019-11-27 13:40:27.454312 I  NVCtrl: The NV-CONTROL X extension is not
> available on screen 0 of ''
> ......
> and on frontend closedown
>
> 2019-11-27 14:09:28.060362 I  DispRes: Changing to 1440x900 75.000 Hz
> 2019-11-27 14:09:28.094487 I  DispRes: SwitchToGUI: Switched to 1440x900
> 75.000 Hz
> 2019-11-27 14:09:28.094498 I  DispResX: Deleted
>
> $ xrandr
> Screen 0: minimum 8 x 8, current 1440 x 900, maximum 32767 x 32767
> VGA1 connected primary 1440x900+0+0 (normal left inverted right x axis y
> axis) 410mm x 260mm
>     1440x900      59.89 +  74.98*
>
> =====
>
> In contrast, a build for Fedora 30 at the same commit, with nVidia
> graphics, shows DispResX rates that are the same as those from xrandr;
> not, as above, truncated to the nearest integer.  It also shows
> CustomRate: to 4 decimal places.
>
> This is probably not a  blocker.  DLNA doesn't show the drift.  I
> haven't yet found a logging option that does.
>
> HTH
>
> John P
>
>
>
>
>
>
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