I have a Xtreamer Ultra 2 (nVidia graphics) and on LE (8.0.2 and 8.2.0) I noticed, that that the framerate doesn't properly sync with 25fps sources.
The gui is set to 23.97 and the TV shows 24 when playing 25fp and i get glitches in audio (passthrough to the receiver).
When i switch the gui to 25, the TV displays 25 and I get no sound at all. The same when I switch the gui to 30, TV 30, no sound.
What additional info is needed to debug this problem?
Sounds like an issue with EDID and modelines. Pastebin a Kodi debug log after clean boot for a starting point.
Here is the log:
xorg.conf
edid.bin
My TV (Samsung PS50A557) is 24p capable but it doesn't "say" it, that's why I need the modelines in the xorg.conf.
It was working without a problem on OE 6.0.3,
I didn't notice the problem in LE 7.0.3
I first noticed it in LE 8.0.2
Section "Device"
Identifier "nvidia"
Driver "nvidia"
Option "DynamicTwinView" "False"
Option "NoFlip" "false"
Option "NoLogo" "true"
Option "ConnectToAcpid" "0"
Option "ModeValidation" "NoVesaModes, NoXServerModes, NoEdidModes"
Option "HWCursor" "false"
Option "UseEDID" "true"
EndSection
Section "Monitor"
Identifier "Samsung_LN46A850"
Gamma 1.0 1.0 1.0
Option "DPMS"
Option "ExactModeTimingsDVI" "true"
Option "PreferredMode" "1920x1080_60.00"
HorizSync 26-76
VertRefresh 23-61
Modeline "1920x1080_60.00" 148.5 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
Modeline "1920x1080_59.94" 148.3515 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
Modeline "1920x1080_50.00" 148.50 1920 2448 2492 2640 1080 1084 1089 1125 +hsync +vsync
Modeline "1920x1080_29.97" 74.1756 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
Modeline "1920x1080_25.00" 74.25 1920 2448 2492 2640 1080 1084 1089 1125 +hsync +vsync
ModeLine "1920x1080_24.00" 74.25 1920 2558 2602 2750 1080 1084 1089 1125 +hsync +vsync
ModeLine "1920x1080_23.976" 74.1756 1920 2558 2602 2750 1080 1084 1089 1125 +hsync +vsync
EndSection
Section "Screen"
Identifier "screen"
Device "nvidia"
Monitor "Samsung_LN46A850"
DefaultDepth 24
Option "ColorRange" "Full"
Option "ColorSpace" "RGB"
SubSection "Display"
Depth 24
Modes "1920x1080_60.00" "1920x1080_59.94" "1920x1080_50.00" "1920x1080_29.97" "1920x1080_25.00" "1920x1080_24.00" "1920x1080_23.976"
EndSubSection
EndSection^ This is the xorg.conf I used to use to set specific (more accurate) modelines (actually on an Ultra2 board, but it's the TV that's relevant not the board being used). It's slightly different to yours - have a play.
Another thing to try is the older nvidia driver, run:
wget http://chewitt.libreelec.tv/96-nvidia.rules -O /storage/.config/udev.rules.d/96-nvidia.rules
reboot^ this will force the 340.xx driver to be used, which might behave differently.
With the new xorg.conf
GUI set to 60,
playing 25fps material, TV displays 60, sound is present
playing 24fps material, TV displays 24, sound is present
GUI set to 25
playing 25fps material, TV displays 25, no sound
playing 24fps material, TV displays 24, sound is present
GUI set to 24 or 23.98
playing 24fps material, TV displays 24, sound is present
playing 24fps material, TV displays 24, sound is present
With the older driver and the new xorg.conf it woks as expected.
With the older driver and my original xorg.conf it woks as expected.
if the 340.xx driver works, use it, problem solved
Yes, thank you very much for your help.
Will the script be usable in future versions of LE?
It should be fine in Leia releases because we're still using the same Xorg based graphics stack and nvidia drivers. Right now it's unclear whether we will have nvidia support post-Leia but that's a longer story.. and nothing definite yet.
OK.
Thank you for the info.