New 1080p TV - 24p Causing issues. Plz Help!

TheOsburnFamil · #1

I could use some help. I just got my first 1080p LED tv (upgraded from an old Plasma 720p). I'm still learning about all the little 1080p-related gotchyas.

My trouble right now is that when I play blurays, Arcsoft TMT switches to 1080/24p and I get a ton of jerkyness during playback.

I thought my system was more than suffecient to handle this. Am I missing something on a setting somewhere?

Intel H57 Mobo - Core i3-540 proc - 4GB ram - ATI 5570 Card with HDMI out to AVR to HDMI out to TV. None of this is old stuff & should be able to handle this w/o any problem!

It's not the cables or the AVR or the TV. The same disc through the PS3 > AVR > TV with the same cables plays just fine. So, it's gotta be something on the HTPC.

Any help or ideas? Also-- if you could comment on normal 1080p/24/60/120/240hz related things, I'd appreciate it.

Thanks!

#2

Yeah, this whole 1080p/refresh rate stuff probably deserves a spot in the wiki- unfortunately, its not my topic of expertise.

TheOsburnFamil · #3

Man this is frustrating! I'm about ready to throw in the towel & go back to a trusty 720p display!

richard1980 · #4

Try setting the W7 refresh rate to 24 and see if that helps. I have no idea what I'm talking about, but just thought maybe that might work.

TheOsburnFamil · #5

LOL-- Me either-- new territory here.

Tried setting W7 to 24 in ATI CCC. Now TV playback is terrible. (news scrollbar on bottom of screen is constantly jerking).

richard1980 · #6

Well yeah, you don't want Windows set to 24 Hz when you are watching 30Hz or 60Hz signals...I just meant set Windows to 24 Hz and watch a 24Hz content to see if the problem goes away.

TheOsburnFamil · #7

Gotchya--

So, no amount of tweaking in CCC (23, 24, 60) with setting Cinema mode vs Standard vs Truemotion (120/240hz) seems to have solved smooth playback in TMT while at 1080/24p.
Aaron of at the missingremote pointed me to the setting in the TMT software to disable the autoswitch feature so now it will stay at 1080/60p everywhere. That at least gives me the smooth playback everywhere now. Too bad I still cant get the 1080/24p (native bluray/filming). But it's still better then my 720p was, so I'm happy.

StumpyBloke · #8

Are you using the latest CC drivers? I *think* I read on Arcsofts forums that you actually need older drivers to alleviate this...

TheOsburnFamil · #9

StumpyBloke wrote:Are you using the latest CC drivers? I *think* I read on Arcsofts forums that you actually need older drivers to alleviate this...

Really? Do you mean the latest version of CC drivers are causing the jittering while in 1080/24p? Does it indicate which version to roll back to?

Thanks!

StumpyBloke · #10

Sorry I don't know to be honest, I'm just sure that I read on their site somewhere that some people were having issues with the latest CC and 114 update. They did mention a CC version but couldn't tell you which.

bruce73 · #11

TheOsburnFamil wrote:
StumpyBloke wrote:Are you using the latest CC drivers? I *think* I read on Arcsofts forums that you actually need older drivers to alleviate this...
Really? Do you mean the latest version of CC drivers are causing the jittering while in 1080/24p? Does it indicate which version to roll back to?

Thanks!

Search the 114 Release Notes thread at Arcsoft for a definitive answer, but, for some, CCC 11.7 works for .113, and 11.4 for .114.

TheOsburnFamil · #12

I'm curious if anyway can explain what I'm missing if I just force 1080/60p instead of 1080/24p? Is there a noticably better picture when it 1080/24p?

Thanks!

StumpyBloke · #13

You aren't missing anything as such...movies are filmed and produced in 24fps so when watching at home at 24Hz you will be getting a more 'accurate' for want of a better word visual experience.

That's how I see it anyway.

richard1980 · #14

You aren't exactly missing anything (other than accuracy and a film "feel"), but conversion from 24p to 60p actually introduces something new...judder. With 24p content, there are 24 frames per second of video. But if you are outputting 60p, you have to convert the 24 frames into 60 frames. Since 60 is not a multiple of 24, the conversion can't be done cleanly, so there's a process called 3:2 pulldown that stretches the 24 frames into 60 frames, but in doing so, it causes judder during playback. A good TV will be able to play the content without any noticeable judder (that's where sub-field drive comes in).

cw-kid · #15

Your PC spec is much better and newer than mine! I don't appear to be having any issues playing Blu-ray ISO's off my WHS over the LAN to the Windows 7 x64 HTPC. I was using ATI CCC Version 11.7 and Arcsoft TMT V5 .114 it switches to 24HZ now on the HDTV when playing Blu-rays.

I just updated to ATI CCC 11.8 today, I've not tried to play any blu-rays yet however, I also updated my ATI HDMI audio and Realtek Digital audio drivers today as well to the latest version from the Realtek website. Will play some movies later and report back if I have any issues.

cw-kid · #16

I've gotta go out now - but I just tried playing 5 mins of Avatar on Blu-ray and it appears to still be playing back smoothly. My 42" LG LED HDTV still switches to 24HZ when playback starts in TMT5.

gcoupe · #17

On my HTPC/AVR/TV setup, when Bluray media is played, the video stutters (pauses for about a second) every 40 seconds. The audio seems unaffected, and following the pause of the video, the video jumps forward to be back in sync with the audio.

This is a new development that started (I think) when I upgraded my TMT 5.0.1.87 to TMT 5.0.1.114. I'm using a Sapphire ATI Radeon HD 5670, with AMD Catalyst drivers version 11.8 installed. Prior to that, I could see slight jerkiness during panning shots, but there was never a full spanner in the works every 40 seconds. For example, during the opening space scenes of Avatar, with the two rotating modules on the spaceship, I could see a slight jerkiness as they rotated through the scene. Now they move as smooth as silk, which is good, but then I get the full stop every 40 seconds on the video, which is horrendous.

I use TMT5 to play only Bluray media (not standard DVDs). This issue occurs whether I am playing a Bluray disc directly on my HTPC, or whether I am streaming the Bluray ISO file stored on my WHS 2011 server to the HTPC. In other words, the stuttering is not caused by a network issue.

The HTPC is running Win7 Home Premium 64bit, all up to date from Microsoft Update. I notice that the Catalyst driver has ITC enabled (whatever that is). Perhaps there's some sort of interaction going on between the video processing done by the Catalyst drivers, what TMT5 is trying to do, and what the TV is doing with its '24p Film' setting. I'm getting lost in all the hundreds of possible combination of settings in multiple places...

I've got a technical support case open with Arcsoft, we'll see whether they manage to suggest a fix.

richard1980 · #18

gcoupe wrote:This is a new development that started (I think) when I upgraded my TMT 5.0.1.87 to TMT 5.0.1.114. I'm using a Sapphire ATI Radeon HD 5670, with AMD Catalyst drivers version 11.8 installed. Prior to that, I could see slight jerkiness during panning shots, but there was never a full spanner in the works every 40 seconds. For example, during the opening space scenes of Avatar, with the two rotating modules on the spaceship, I could see a slight jerkiness as they rotated through the scene. Now they move as smooth as silk, which is good, but then I get the full stop every 40 seconds on the video, which is horrendous.

That just sounds like judder. It's caused by converting 24p to 60p using 3:2 pulldown. Perhaps you had the old version set to output 60 fps but now you have it set to output 24 fps. That makes sense because of your new problem. Your new problem is a stutter every 40 seconds, which is exactly what happens when converting from 23.976 to 24 fps. When converting from 23.976 to 24 fps, an extra frame is introduced every 40 seconds.

kingslane · #19

i would eliminate the video card. You have a clarkdale processor, and an H57 mobo, does it have HDMI out? I would remove the video card (I think you have to on the H57 mobo's), go direct HDMI out on from the HTPC and see if you still have the same problem. I would also borrow a reliable set-top blu-ray player and just make sure it's not the television (you mentioned that it was relatively new).

Does it happen with any other content (ripped dvd's/br's, wmv's, avi's)?

But back to the original point: I have built 5 HTPC's over the last 4 years, and the only time i've had problem with HD playback was when i tried using discrete video cards, instead native graphics...

erik

TheGreenButton - Windows Media Center Forums

TheGreenButton - Windows Media Center Forums