Linux HOW-TO achieve perfect playback at 23.97 or 59.94 Hz with NVIDIA GPU hardware

pumkinut · 2012-08-11 00:06

Gave the right EDID information for my 1080p LG set. Even gave me a modeline for 23.976.

robo989 · 2012-08-11 04:37

(2012-08-11 00:06)pumkinut Wrote: Gave the right EDID information for my 1080p LG set. Even gave me a modeline for 23.976.

Cheers, will give them a go Smile

puntloos · 2012-08-30 01:39

Just a datapoint: I'm on OpenElec 1.95.7 and it seems to work out of the box for me, I'm pretty sensitive to judder etc, and I haven't spotted many problems. (an occasional stutter but so far I'm putting them down to buffering/performance issues rather than timing)

also OpenElec doesn't actually have the nvidia-settings command so I think you're pretty much sunk if you need tuning beyond what the OpenElec guys did.

zofiel · 2012-09-02 11:59

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Stefanhvt · 2012-09-03 15:15

(2012-08-30 01:39)puntloos Wrote: Just a datapoint: I'm on OpenElec 1.95.7 and it seems to work out of the box for me, I'm pretty sensitive to judder etc, and I haven't spotted many problems. (an occasional stutter but so far I'm putting them down to buffering/performance issues rather than timing)

also OpenElec doesn't actually have the nvidia-settings command so I think you're pretty much sunk if you need tuning beyond what the OpenElec guys did.

And what about out of sync issues? Openelec 1.95.7 still uses the old audio engine so I would only use it if the audio is in perfect sync.

(2012-08-11 00:06)pumkinut Wrote: Gave the right EDID information for my 1080p LG set. Even gave me a modeline for 23.976.

I've not noticed this yet. For me it was necessary to add the 23.976 modeline manually.

puntloos · 2012-09-04 00:54

(2012-09-03 15:15)Stefanhvt Wrote: And what about out of sync issues? Openelec 1.95.7 still uses the old audio engine so I would only use it if the audio is in perfect sync.

The only sync problem I noticed is movies that are not 24p, but I believe I can fix that by selecting sync audio to TV? THere's some option.

Quote:I've not noticed this yet. For me it was necessary to add the 23.976 modeline manually.

Stefanhvt · 2012-09-04 23:08

(2012-09-04 00:54)puntloos Wrote:
(2012-09-03 15:15)Stefanhvt Wrote: And what about out of sync issues? Openelec 1.95.7 still uses the old audio engine so I would only use it if the audio is in perfect sync.
The only sync problem I noticed is movies that are not 24p, but I believe I can fix that by selecting sync audio to TV? THere's some option.

Quote:I've not noticed this yet. For me it was necessary to add the 23.976 modeline manually.

The amount of sensitivity for this differs from person to person.

puntloos · 2012-09-05 01:27

(2012-09-04 23:08)Stefanhvt Wrote: The amount of sensitivity for this differs from person to person.

Very true. Dunno, I guess AV sync sensitivity is an unusual discipline, I think I'm about as sensitive as the next guy, but also the material has to be obvious. Dialogue is difficult (for one, the actual movies usually aren't shot this way, audio is dubbed in later, so the source itself might actually be off) but when you see and hear gunshots even the slightest discrepancies are obvious.

I'm aware openelec doesn't do audioengine yet (and I cant wait for different reasons...) but are there good alternatives to it? Is live linux xbmc tried and proven or is any build that supports audioengine going to be "touchy" by necessity?

Stefanhvt · 2012-09-05 02:05

(2012-09-05 01:27)puntloos Wrote:
(2012-09-04 23:08)Stefanhvt Wrote: The amount of sensitivity for this differs from person to person.

Very true. Dunno, I guess AV sync sensitivity is an unusual discipline, I think I'm about as sensitive as the next guy, but also the material has to be obvious. Dialogue is difficult (for one, the actual movies usually aren't shot this way, audio is dubbed in later, so the source itself might actually be off) but when you see and hear gunshots even the slightest discrepancies are obvious.

I'm aware openelec doesn't do audioengine yet (and I cant wait for different reasons...) but are there good alternatives to it? Is live linux xbmc tried and proven or is any build that supports audioengine going to be "touchy" by necessity?

I've heard it's quite stable. I'm using this build: http://www.xbmcfreak.nl/en/xbmcbuntu-12-...t-release/

After install I've updated the nvidia drivers to the newest and added a 23.976 modeline.

leepenny · 2012-09-13 14:12

I have sooo many questions as I just cannot find the correct xorg config to get fluid playback. But I will be restrained and post a couple of questions at a time.
1. When finding out the modes for my tv do I have to bypass the receiver
2. When set up correctly using the xorg posted previously I still get dropped frames? Is this the norm
Receiver; Pioneer VSXS300 TV; Samsung 46 inch led tv
I have been trying to fix my problems for a good while now and feel like I am sinking in quicksand(all be it slowly)
Running xbmcubuntu 11.10 ;open gl 3.3.0 ;nvidia 304.43
gpu; nvidia geforce 210; intel celeron dual core @2.4 (one core always maxed out)

PS Please be kind although knowledgeable in some areas, this is not one of them

pumkinut Posting Freak Posts: 875 Joined: May 2006 Reputation: 9	2012-08-11 00:06 Post: #481 Gave the right EDID information for my 1080p LG set. Even gave me a modeline for 23.976.
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robo989 Senior Member Posts: 176 Joined: Apr 2010 Reputation: 2	2012-08-11 04:37 Post: #482 (2012-08-11 00:06)pumkinut Wrote: Gave the right EDID information for my 1080p LG set. Even gave me a modeline for 23.976. Cheers, will give them a go
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zofiel Junior Member Posts: 2 Joined: May 2012 Reputation: 0	2012-09-02 11:59 Post: #484 Deleted (This post was last modified: 2012-09-02 22:40 by zofiel.)
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