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24p on LG TV doesn't seem to work?


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Old 01-01-2009, 18:25
f1d
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Hey all!

Thought I would ask on here!

I recently bought the 42LG7000 TV (on offer from Curry's) as it looked quite a good deal for the price it was being sold for.

Anyway, I've been playing some blu-rays on this TV with my Sony BDP-S350 player and I've been outputting in 1080p/24... i.e. 24hz.

Now I was told this would eliminate the juddering (when panning across, moving big distances, credits roll smoother) but as far as I can see - it hasn't.

Even weirder, the juddering looks the same in several resolutions I have tried, from 1080p/60hz, 1080i/60hz, 720p/60hz. The credits are a bit smoother when I enable 'trumotion' but that introduces its own problem during the films.

Am I missing something here? Is my TV not working as correctly as it should? Is it my player? HDMI cable?

I'm planning to grab a friends PS3 and HDMI cable so will test the playback on there (which should narrow it down between the player and TV)... but suggestions please!

For the record, the HDMI cable I'm using is the one Virgin sent for me to use with my V+ box (but the engineer gave me one so it was spare).

Cheers!
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Old 01-01-2009, 18:35
Chparmar
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Does it say on screen that you're outputting 1080/24p?
Have you seen the same movies on other 24p sets?
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Old 01-01-2009, 18:39
f1d
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Yep, on the screen it says 1080p 24hz.

And no I haven't - but surely all 3 couldn't have juddering half the time, and 'unsmooth' credits? (While looking at the credits is far from the best way at seeing 24p, they still should be quite smooth I'm told).

The 3 films were Wall-E, Mamma Mia and Hancock (the ones free with the player).

Edit: Going to auto update the player now, but I highly doubt that would have made the slightest bit of difference.
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Old 01-01-2009, 18:43
Jarrak
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The implementation of LG's 24p source processing is mentioned as being flawed in reviews of the panel.
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Old 01-01-2009, 18:50
f1d
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Yes, I did read one review on this panel about that fact that mentioned there was a few problems with 24p - however after speaking to others who have played bluray through it they have said that 24p has worked fine and is extremely smooth.

Would all the juddering look the same on 60hz/24hz then - even if it was broken?

LG apparantly do not acknowledge the 24p as a problem either apparantly and say it works fine.
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Old 01-01-2009, 18:52
Orbitalzone
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I must say that on my Sony with full 24p support I've still noticed some judder on long pans on blu ray. Not very often at all but just on the odd film pan here and there.

As I understand it, 24p can still exhibit judder in some cases and I've certainly seen it in the cinema, again on the occasional pan shot.

Edit: as for LG acknowledging issues, well when I queried the aspect ratio of my 22" LG (It's a 16:10 ratio TV/Monitor) they said there was no issue with it displaying 16:9 footage despite the TV clearly distorting the image. It soon became apparent that LG UK tech support didn't seem to know their arse from their elbow.
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Old 01-01-2009, 18:54
f1d
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I must say that on my Sony with full 24p support I've still noticed some judder on long pans on blu ray. Not very often at all but just on the odd film pan here and there.

As I understand it, 24p can still exhibit judder in some cases and I've certainly seen it in the cinema, again on the occasional pan shot.
Indeed - apparantly the opening scenes of Wall-E and some of that has judder in (i.e. the balloons).

However there seems be a lot of judder so far from when I've been watching these 3 films - I wouldn't mind it now and again but it's all the time.
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Old 01-01-2009, 18:55
bobcar
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I must say that on my Sony with full 24p support I've still noticed some judder on long pans on blu ray. Not very often at all but just on the odd film pan here and there.

As I understand it, 24p can still exhibit judder in some cases and I've certainly seen it in the cinema, again on the occasional pan shot.
Yes it is only p24 and that is too slow to not have judder on certain shots. Until films are made p48/50/60 then some shots will always not be quite right.
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Old 01-01-2009, 18:56
bobcar
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Indeed - apparantly the opening scenes of Wall-E and some of that has judder in (i.e. the balloons).

However there seems be a lot of judder so far from when I've been watching these 3 films - I wouldn't mind it now and again but it's all the time.
What's it like if you use p60?
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Old 01-01-2009, 18:57
f1d
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What's it like if you use p60?
I presume p60 is 60hz right?

If so, it's exactly the same really! I still notice the judder in the same (a lot) places and to be quite honest I can spot no difference at all!
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Old 01-01-2009, 18:57
Orbitalzone
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Sounds more like your TV isn't doing 24p very well.... Have you turned off all the LG's 'picture enhancements (these often just make everyting look worse) such as their XG improvements. (On my 22" LG the XG 'engine' only looked better on the split screen demo whereas I was able to setup the TV far better without using XG at all.
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Old 01-01-2009, 18:59
f1d
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Yup!

All extras, such as fresh anything and noise reduction and trumotion all off.
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Old 01-01-2009, 19:06
Chparmar
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I think you should test with a new HDMI cable and your friend's PS3 and if you still not happy, return the set!

From what you describe, it does sound as if 24p is not working right. (especially when you describe the credits).
I haven't at all updated my Sony BD350, so I doubt that's the problem.
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Old 01-01-2009, 19:06
bobcar
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I'm not familiar with this TV. Are you sure it displays at a multiple of 24 (eg 48) and doesn't just accept a p24 input?
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Old 01-01-2009, 19:42
f1d
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Hmmm, tried with PS3 and same results.

Only problem with returning this TV is that the box is at home (which is 100+ miles away - I'm in Uni) and the TV is up here! I've got everything up here though (manuals etc).

So I'm stuck with that dilemma now.

As others have said they've had excellent results with the LG in 24p... I don't know whether to contact LG to see what they think, somehow return it (maybe a round trip of 200 miles - if the box even fits into my car!) or live with it.

bobcar - I have absolutely no idea! All I know is that it claims to be 24p Real Cinema, and others have said when they've played back BD it looks excellent and really smooth!
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Old 01-01-2009, 20:55
f1d
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Hmmm, I've read even more reviews online and several of them say the 1080p/24p works very well and list it as a FOR for this set.

Maybe my TV is a duff one? Hmmm bet Curry's wont have any instock now.
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Old 01-01-2009, 21:04
Chparmar
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Your TV is very modern with 100Hz and definitely supports 24p. Since when did students afford this sort of home cinema tech!
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Old 01-01-2009, 21:12
f1d
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Your TV is very modern with 100Hz and definitely supports 24p. Since when did students afford this sort of home cinema tech!
Haha, ones who work very hard in their part time job and are quick during the sales at Christmas

It is a good TV and works well, especially for the price I paid, it's just a bit disappointing at the moment it seems my set doesn't work correctly with 24p (when plenty of others do apparantly).

Of course there could be something I'm doing incorrectly with this - but having tried literally everything I very much doubt it!
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Old 01-01-2009, 21:19
Chparmar
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Of course there could be something I'm doing incorrectly with this - but having tried literally everything I very much doubt it!
Make sure both devices (BD player and the TV) film mode is set to Auto. You shouldn't have to think about it, it should just work automatically.

All I can say is that if my TV's 24p was not working and it's obvious I would return it by any means, but I don't know how you strongly you feel about it.
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Old 01-01-2009, 21:25
f1d
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Make sure both devices (BD player and the TV) film mode is set to Auto. You shouldn't have to think about it, it should just work automatically.

All I can say is that if my TV's 24p was not working and it's obvious I would return it by any means, but I don't know how you strongly you feel about it.
Indeed, I am feeling the same way.

I think I'll give them a ring tomorrow and first of all see if they have any in stock - hopefully they might just let me bring the TV and I'll tell them to keep the replacement's box as one.

If not, I'll head home, get my dad to take me to Curry's with it there, get a new tv and then head back up here.

Cheers for all your help everyone!!
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Old 01-01-2009, 21:33
Jarrak
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Give that at least one review states there is a problem with 24p and the OP has a problem with 24p yet others don't then it seems a problem with this particular TV is the root cause and a swap is in order.

For any one interested a video review from AVF can be watched here where the 24p issue is mentioned plus a few other quirks of the telly.
I have to say I like the GUI of the LG, far more advanced than my Pana.
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Old 01-01-2009, 21:44
f1d
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Give that at least one review states there is a problem with 24p and the OP has a problem with 24p yet others don't then it seems a problem with this particular TV is the root cause and a swap is in order.

For any one interested a video review from AVF can be watched here where the 24p issue is mentioned plus a few other quirks of the telly.
I have to say I like the GUI of the LG, far more advanced than my Pana.
That was the review I originally read about the 24p issue! However the thing about that, was that the reviewer had 'Real Cinema' on which apparantly can cause it to skip a frame or something like that (when Real Cinema should be off as it's not for HDMI or something).

While I have absolutely no doubts of the quality and correctness of AVF reviews - I'm just a bit wary of that one as so many others have said it all looks so smooth in 24p - leading me to believe it is just a problem with my panel. I also think someone else contacted LG about the issue and they said to take it back to the store for another one.

Only problem now is that because of the offer they're in short supply! I think my local PC World has them and although they're owned by DSG too, I doubt they'd exchange for me!
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Old 01-01-2009, 21:54
Jarrak
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That was the review I originally read about the 24p issue! However the thing about that, was that the reviewer had 'Real Cinema' on which apparantly can cause it to skip a frame or something like that (when Real Cinema should be off as it's not for HDMI or something).

While I have absolutely no doubts of the quality and correctness of AVF reviews - I'm just a bit wary of that one as so many others have said it all looks so smooth in 24p - leading me to believe it is just a problem with my panel. I also think someone else contacted LG about the issue and they said to take it back to the store for another one.


Well set yours up exactly the same as some of the others who have no problems and if possible with the same movie, I think we can get by with a different Blu player as 24p support is native.
At least that way you will know for sure without all the leg work required due to location/circumstance
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Old 01-01-2009, 22:08
f1d
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Well set yours up exactly the same as some of the others who have no problems and if possible with the same movie, I think we can get by with a different Blu player as 24p support is native.
At least that way you will know for sure without all the leg work required due to location/circumstance
Have asked a few now and will try that infact!

If not, might also log a call with LG tomorrow (I would guess they are open then!) and see if an engineer will come out and take a look/repair it. I know some companies don't come out for their TVs unless they are big, so hopefully 42" is big enough for that too.
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Old 02-01-2009, 12:06
f1d
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Argh!

Just went into Curry's about 24p... the guy reckoned it had nothing to do with judder (and that was 100hz) and that it only makes it less 'speeded up'.

While true, it does remove judder!

Can anyone recommend any good 37-42" TV's that have 24p, that WORK and removes the judder when watching blu-ray?
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