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scarfi
Junior Member
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2013-02-23, 18:41
(This post was last modified: 2013-02-24, 15:09 by scarfi.)
hey, i bought a lg 47lm760s, got a geforce gt630 and i am using xbmc of course
24p playback seems not wokring properly.
i added this modeline to xorg.conf:
ModeLine "1920x1080_23.976" 74.175 1920 2558 2602 2750 1080 1084 1089 1125 +hsync +vsync
but xbmc-xrandr doesnt show this mode
the nearest one is 1920x1080_23.97091
what am i doing wrong? is it possible that my tv cant play 24p correctly?
edit: it seems that xorg ignores all my settings. in fact in only takes the info it gets from edid. when i disable that the only resolution i get is 800x600 :/
so i need a way to edit that edid (i got only osx and ubuntu here, windows would be great now because there are some edid tools available...)
did anyone else come across this problem with his lg tv and can help me?
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2013-02-24, 23:49
(This post was last modified: 2013-02-24, 23:49 by iissmart.)
Back again. Wiped my htpc and rebuilt from scratch with Lubuntu 12.10 and NVIDIA 304.64. Still studders every now and then :/
Tried playing with the modelines this time, and by reducing the last integer in the 23.976 modeline down from 1125 to say, 1110, I think the studdering is reduced. However, this now causes the audio to drop/come back every 1.5 minutes or so (yes, drop/dup audio is selected). So I'm not sure if I've made it better or worse.
Tried turning VDPAU and all other hardware acceleration off, didn't seem to make a difference.
Does anyone have some good 23.976 and 24fps test files with slow pans and audio? I'm trying to use a scene from a movie when I'd really like something simple like a small dot moving in a circle on the screen. It would be so much easier to see it studder that way!
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un1versal
Out of Memory (1939–2016)
Posts: 7,135
2013-02-25, 01:47
(This post was last modified: 2013-02-25, 01:50 by un1versal.)
Code:
# 1920x1080p @ 23.976Hz (EIA/CEA-861B)
ModeLine "1920x1080_23.976" 74.175 1920 2558 2602 2750 1080 1084 1089 1125 +hsync +vsync
ModeLine "1920x1080_24" 74.250 1920 2558 2602 2750 1080 1084 1089 1125 +hsync +vsync
These are the xorg.crack nothing better than those I pasted.along with xbmc settings found here
http://is.gd/Hhjim3 it will work just fine
uNi
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un1versal
Out of Memory (1939–2016)
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Thers nothing to explain, if your gives you better results use it. This is about getting better results, So I will be testing yours too, and if I like it and works better Im stealing it.
uNi
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Even if you have 23.97600000000000000000 you should enable "sync playback to display". Without this option the clock is not in sync with the display. Sooner or later it gets out of sync and a frame will be dropped.
23.97576 is good enough. You can set video clock as master and audio skip/dupe. The change in speed is not noticeable. You can easily watch a whole movie without seeing a single drop/dupe of an audio packet.
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Well, I do get stutter free playback on my systems and I guess many other users claim this too. Rendering video in XBMC is definitely not quick and dirty. You have to consider that this is an open system, e.g. XBMC may run in one window while in other windows other application do rendering.
In case those "tricks", I call it configuration, bother you, you are very welcome to write some code that configures a modeline dynamically.
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un1versal
Out of Memory (1939–2016)
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Look at last link on my signature and setup xbmc exactly like that.
uNi
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I did that as part of the setup already. Just forgot to list it in my previous post, sorry.