[mythtv] 2019-devel: lipsync drift
johnpilk222 at gmail.com
Wed Nov 27 15:01:42 UTC 2019
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
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
2019-11-27 14:09:28.094498 I DispResX: Deleted
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.
More information about the mythtv-dev