Surely there is somebody out there with smooth 1080/24 playback
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1080/24Hz playback is jerky on Nvidia 8600GT. Switch to ATI 3850 ?
Found some discussions here on AVS with similar issue (and no apparent resolution) but with last post over 5 months ago so I thought it would help to bring the topic back since new drivers/software builds have been relesed.
Just upgraded my card to 8600GT with one specific purpose in mind: to get 1080/24 capability. Well, I succeded to output 1080/24 (which is confirmed by my projector AE2000) but I am not very happy with what I see. It plays smooth for about 1-2 minutes then picture becomes really jerky and skipping for about 1-2 seconds (as if there is not enough CPU power which is confirmed to be not an issue).
It happens in both PowerDVD when playing HD and in MPC (DVD playback with ffdshow) so I don't think it is caused by any of these applications. Rather appears like a driver issue.
So, do we have a bug in drivers (Forceware 169.21) ? Is there any way to fix it by using different set of drivers (older, beta) ? Does this happen with ATI 3850 cards ? Would switching to 3850 or other Nvidia (8800) going to solve the problem ?
Appreciate your help on the subject, Davie.
Just upgraded my card to 8600GT with one specific purpose in mind: to get 1080/24 capability. Well, I succeded to output 1080/24 (which is confirmed by my projector AE2000) but I am not very happy with what I see. It plays smooth for about 1-2 minutes then picture becomes really jerky and skipping for about 1-2 seconds (as if there is not enough CPU power which is confirmed to be not an issue).
It happens in both PowerDVD when playing HD and in MPC (DVD playback with ffdshow) so I don't think it is caused by any of these applications. Rather appears like a driver issue.
So, do we have a bug in drivers (Forceware 169.21) ? Is there any way to fix it by using different set of drivers (older, beta) ? Does this happen with ATI 3850 cards ? Would switching to 3850 or other Nvidia (8800) going to solve the problem ?
Appreciate your help on the subject, Davie.
1 - 17 of 17 Posts
I think I have the same problem...
I use my HTPC to feed Toshiba 47z3030d (capable of 24fps) with 1080p/24Hz signal.At this resolution when I try to play a 1080p/24frames movie file (avi, mkv), I see not a smooth playback , but like some frames are lost or stuck (the playback stays on a frame allitle longer and lose the next ones). Now when I change the feed resolution to 1080p/60Hz everything goes fine and the playback is very smooth with different movie files .
Now the problem lies on the TV or the graphics card (nvidia 8600M GT HDMI on an Acer 5920 notebook)? I use the most recent drivers from Acer site for 8600M GT since in nvidia's site there are no drivers for this card. Are these problem eliminated with a better card ATI or Nvidia?
I use my HTPC to feed Toshiba 47z3030d (capable of 24fps) with 1080p/24Hz signal.At this resolution when I try to play a 1080p/24frames movie file (avi, mkv), I see not a smooth playback , but like some frames are lost or stuck (the playback stays on a frame allitle longer and lose the next ones). Now when I change the feed resolution to 1080p/60Hz everything goes fine and the playback is very smooth with different movie files .
Now the problem lies on the TV or the graphics card (nvidia 8600M GT HDMI on an Acer 5920 notebook)? I use the most recent drivers from Acer site for 8600M GT since in nvidia's site there are no drivers for this card. Are these problem eliminated with a better card ATI or Nvidia?
firstly how did you get the nvidia custom resolution to output 24p.
secondly what os are you using?
I have just upgraded my pc to 8400 duo, 4gb ram and 8800gt with xp sp2 so keen to see how what timings you used to get 24p output from there maybe able to help...with some testing
I suspect it is a timing issue I have seen this before with slower rates eg 48 or 50hz you have to get it spot on to not stutter...hence solutions like reclock
secondly what os are you using?
I have just upgraded my pc to 8400 duo, 4gb ram and 8800gt with xp sp2 so keen to see how what timings you used to get 24p output from there maybe able to help...with some testing
I suspect it is a timing issue I have seen this before with slower rates eg 48 or 50hz you have to get it spot on to not stutter...hence solutions like reclock
also have you guys tried 72Hz?
When I connect notebook to HDTV through HDMI I get the following refresh options for 1920X1080 from nvidia's control panel : 23, 24, 25 interlaced,29 interlaced,30 interlaced, 50,59,60 Hz.
50 or 60 Hz play very good maybe with some telecine judder but 24 Hz is awful like I've stated above although it should be the proper refresh rate for 24 fps playback. And unfortunately there are no options for 48,72,or 120 Hz that are multiples for 24 Hz.I use Windows Vista Ultimate 32-bit , Acer driver for 8600M GT 7.15.11.5672, which correspond to nvidia's 156.72 desktop drivers, kmp player or media classic player with k-lite codec pack 3.75
50 or 60 Hz play very good maybe with some telecine judder but 24 Hz is awful like I've stated above although it should be the proper refresh rate for 24 fps playback. And unfortunately there are no options for 48,72,or 120 Hz that are multiples for 24 Hz.I use Windows Vista Ultimate 32-bit , Acer driver for 8600M GT 7.15.11.5672, which correspond to nvidia's 156.72 desktop drivers, kmp player or media classic player with k-lite codec pack 3.75
May not answer your question, but this is my experience:-
My HDTV will not display 24fps multipals, only 1080p50 and 1080p60. I have an ati 2600xt and use "Reclock" (with XP) to watch 24fps material at 1080p50 (sped up slightly). This is with MPC (HC version) and is very smooth (no 3:2 conversion).
However with PowerDVD I had issues getting reclock to run smoothly (with HD_DVD's), others did have good results, using an older version of the software. It seemed that Hardware acceleration was not working with re-clock, and my CPU was maxed.
"The latest to work with ReClock is the latest patch available, 3516 The latest before that was 3104a, between those none worked with ReClock."
When reclock reports the refreshrate of my TV when set at 50Hz it is actually 49.995Hz, perhaps the actual refreshrate of your Nvidia is not 24hz, additionally the source material may be 23.976 (1000*24/1001) this could affect sync.
One option would be to use Powerstrip to try and improve your timings to get both a 24Hz and a 24.976Hz option.
My HDTV will not display 24fps multipals, only 1080p50 and 1080p60. I have an ati 2600xt and use "Reclock" (with XP) to watch 24fps material at 1080p50 (sped up slightly). This is with MPC (HC version) and is very smooth (no 3:2 conversion).
However with PowerDVD I had issues getting reclock to run smoothly (with HD_DVD's), others did have good results, using an older version of the software. It seemed that Hardware acceleration was not working with re-clock, and my CPU was maxed.
"The latest to work with ReClock is the latest patch available, 3516 The latest before that was 3104a, between those none worked with ReClock."
When reclock reports the refreshrate of my TV when set at 50Hz it is actually 49.995Hz, perhaps the actual refreshrate of your Nvidia is not 24hz, additionally the source material may be 23.976 (1000*24/1001) this could affect sync.
One option would be to use Powerstrip to try and improve your timings to get both a 24Hz and a 24.976Hz option.
I had the 8600gt feeding my RS1. My RS1 tells me the refresh rate is 24khz (actually 48 because it doubles it). The playback is as you described very smoth but with fits of jerkyness every so often. When I feed my RS1 from my PS3 it reports 23.98 (Actually 47.96 since it doubles it). Playback is smoth as butter and never jerky. I think the desired rate is actually 23.976 by the way.
Since I could not use powerstrip to create a custom resolution (latest NVidia cards do not allow support for powerstrip - sucks) I bought a ATI 3850. Then I used one of the pre-defined 24hz resolutions built into powerstip and sure enough my RS1 reports the 47.96 refresh rate and the playback is smoth and perfect.
My conclusion: The NVidia supplied 23/24 hz rates do not match up exactly with my projector and probably many other projectors. Without support for creating a custom resolution they are not a good fit for a HTPC if you want 1080/24.
I have been very happy with my 3850 card.
Since I could not use powerstrip to create a custom resolution (latest NVidia cards do not allow support for powerstrip - sucks) I bought a ATI 3850. Then I used one of the pre-defined 24hz resolutions built into powerstip and sure enough my RS1 reports the 47.96 refresh rate and the playback is smoth and perfect.
My conclusion: The NVidia supplied 23/24 hz rates do not match up exactly with my projector and probably many other projectors. Without support for creating a custom resolution they are not a good fit for a HTPC if you want 1080/24.
I have been very happy with my 3850 card.
Whenever you connect a computer to the hdmi socket, the EDID reports which modes it can handle. Modern tvs usually report, just as therrion said, [email protected],24,29,30,50,59,60. Trying any other timing then these reported numbers over HDMI is to my knowledge futile (diffrent story in the analog world maybe).
Since Blu-ray and hd-dvd are generally stored as [email protected], the best timming is probably the "23" option in the nvidia control panel. Reclock does not work with vista, fixing it by speading the video up is not an option.
Since Blu-ray and hd-dvd are generally stored as [email protected], the best timming is probably the "23" option in the nvidia control panel. Reclock does not work with vista, fixing it by speading the video up is not an option.
Here is another thread that might be of help:
http://www.avsforum.com/avs-vb/showthread.php?t=983520
It does appear that ATI has far superior support when 24fps is needed. I switched to 2600Pro and 1080/24 takes a click of a button to enable (spent days trying to do it with Nvidia 7300). Works nice and smooth for SD DVDs (MPC with ffdshow) and HD (PowerDVD 7 Ultra), no issues with jerkyness, tearing or dropped frames.
Just ordered new ATI 3650 (have some issues with fan noice from 2600), will let you know how it handles 24fps. My guess it will be even better
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http://www.avsforum.com/avs-vb/showthread.php?t=983520
It does appear that ATI has far superior support when 24fps is needed. I switched to 2600Pro and 1080/24 takes a click of a button to enable (spent days trying to do it with Nvidia 7300). Works nice and smooth for SD DVDs (MPC with ffdshow) and HD (PowerDVD 7 Ultra), no issues with jerkyness, tearing or dropped frames.
Just ordered new ATI 3650 (have some issues with fan noice from 2600), will let you know how it handles 24fps. My guess it will be even better
I get a slight jerk at times using a 8600gts, depending on what player I'm using. The last version of Powerdvd its rather rare though, but with Arcsoft, its much worse. It is true the RS1 will show 48hz when its actually suppose to show 47.96, using Nvadia.
So, has ATI changed the way noise reduction is handled on the 3850 card? Does it have adjustable NR like Nvadia? I tried a 2600 card once just to check out the custom resolution, but didn't like the NR. Actually it didn't do anything, not like I wanted anyway. I believe I read it only works with interlaced signals? So, I was wondering if they changed anything with the 3850 card.
Quote:
Originally Posted by fingersdlp /forum/post/13088390
I had the 8600gt feeding my RS1. My RS1 tells me the refresh rate is 24khz (actually 48 because it doubles it). The playback is as you described very smoth but with fits of jerkyness every so often. When I feed my RS1 from my PS3 it reports 23.98 (Actually 47.96 since it doubles it). Playback is smoth as butter and never jerky. I think the desired rate is actually 23.976 by the way.
Since I could not use powerstrip to create a custom resolution (latest NVidia cards do not allow support for powerstrip - sucks) I bought a ATI 3850. Then I used one of the pre-defined 24hz resolutions built into powerstip and sure enough my RS1 reports the 47.96 refresh rate and the playback is smoth and perfect.
My conclusion: The NVidia supplied 23/24 hz rates do not match up exactly with my projector and probably many other projectors. Without support for creating a custom resolution they are not a good fit for a HTPC if you want 1080/24.
I have been very happy with my 3850 card.
I get a slight jerk at times using a 8600gts, depending on what player I'm using. The last version of Powerdvd its rather rare though, but with Arcsoft, its much worse. It is true the RS1 will show 48hz when its actually suppose to show 47.96, using Nvadia.
So, has ATI changed the way noise reduction is handled on the 3850 card? Does it have adjustable NR like Nvadia? I tried a 2600 card once just to check out the custom resolution, but didn't like the NR. Actually it didn't do anything, not like I wanted anyway. I believe I read it only works with interlaced signals? So, I was wondering if they changed anything with the 3850 card.
I use HDMI and it is not futile in that with ATI I can send it 23.976 as a custom resolution and it works great. With NVidia I can only select 23 or 24 and neither works properly with my display. I don't plan or want to send any drastic different resolution timing but there is a need to tweak the timings to get proper playback if the default is not exactly what is wanted by the display device. Since I know the proper rate is 23.976 and I believe my projector will properly report when this rate is used I am comfortable saying the refresh rates available with NVidia (it gave me 23 or 24) do not match the desired 23.976.
I think depending on the display device there are lots of slight variations in the timings it will accept and it is sometimes necessary to use a custom timing to get an exact match for proper playback.
Quote:
Originally Posted by bonzichrille /forum/post/13089213
Whenever you connect a computer to the hdmi socket, the EDID reports which modes it can handle. Modern tvs usually report, just as therrion said, [email protected],24,29,30,50,59,60. Trying any other timing then these reported numbers over HDMI is to my knowledge futile (diffrent story in the analog world maybe).
I use HDMI and it is not futile in that with ATI I can send it 23.976 as a custom resolution and it works great. With NVidia I can only select 23 or 24 and neither works properly with my display. I don't plan or want to send any drastic different resolution timing but there is a need to tweak the timings to get proper playback if the default is not exactly what is wanted by the display device. Since I know the proper rate is 23.976 and I believe my projector will properly report when this rate is used I am comfortable saying the refresh rates available with NVidia (it gave me 23 or 24) do not match the desired 23.976.
I think depending on the display device there are lots of slight variations in the timings it will accept and it is sometimes necessary to use a custom timing to get an exact match for proper playback.
I tried the Forceware 174.12 last night on a 8600gts card. It will allow custom resolutions, even though its kind of in a werid way. But I was able to get the 23.976 output so a RS1 & RS2 would show the correct information. It did make a difference in stopping the stutter I'd get at times.
But the video level is still screwed up, just like all the recent Nvidia drivers. But I look in the ATI threads and see the same thing. It must be really hard for them to just put a option for video or pc video levels.
But the video level is still screwed up, just like all the recent Nvidia drivers. But I look in the ATI threads and see the same thing. It must be really hard for them to just put a option for video or pc video levels.
But at least there is a Reg Tweak to fix this for ATi cards
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Wo0zy
Quote:
Originally Posted by Larry J /forum/post/13229169
But the video level is still screwed up, just like all the recent Nvidia drivers. But I look in the ATI threads and see the same thing. It must be really hard for them to just put a option for video or pc video levels.
But at least there is a Reg Tweak to fix this for ATi cards
Wo0zy
Wo0zy,
Why would one need a reg fix for ATI card ? My 3650 works beautifully with 24fps (Catalist 8.2 drivers).
I would appreciate if you can post a link to this reg fix info though -- curious what exactly it does that current ATI cards don't.
![]()
Quote:
Originally Posted by Wo0zy /forum/post/13230986
But at least there is a Reg Tweak to fix this for ATi cards![]()
Wo0zy
Wo0zy,
Why would one need a reg fix for ATI card ? My 3650 works beautifully with 24fps (Catalist 8.2 drivers).
I would appreciate if you can post a link to this reg fix info though -- curious what exactly it does that current ATI cards don't.
Hi All-
I just installed the 174.12 drivers and was suddenly presented with the Custom Resolution interface in the nvidia control panel.
Is there anywhere that explains what all those settings are on that screen? It is all completely baffling to me. I'm running an HP MD5880n. When I try to create a custom resolution, such as 1856x1044 (or other similar 16:9 ratios) one of two things happens:
1) The desktop is cut-off on all sides (leading me to believe that the card is actually outputing 1920x1080
2) The display goes down to 800x600.
I'm guessing that the problem is that I'm not tweaking all the advanced settings correctly. Has anyone seen these and attempted to work with them?
I just installed the 174.12 drivers and was suddenly presented with the Custom Resolution interface in the nvidia control panel.
Is there anywhere that explains what all those settings are on that screen? It is all completely baffling to me. I'm running an HP MD5880n. When I try to create a custom resolution, such as 1856x1044 (or other similar 16:9 ratios) one of two things happens:
1) The desktop is cut-off on all sides (leading me to believe that the card is actually outputing 1920x1080
2) The display goes down to 800x600.
I'm guessing that the problem is that I'm not tweaking all the advanced settings correctly. Has anyone seen these and attempted to work with them?
I meant a fix for SD colour expansion levels. HD expansion is correct by default. No relation to 1080p24 playback. Sorry for the confusion.
If you're interested in Reg Tweaks for the ATi Cards check out the first post in http://www.avsforum.com/avs-vb/showthread.php?t=872538 and the great work from arfster.
Cheers,
Wo0zy
Quote:
Originally Posted by eclipse98 /forum/post/13232931
Wo0zy,
Why would one need a reg fix for ATI card ? My 3650 works beautifully with 24fps (Catalist 8.2 drivers).
I would appreciate if you can post a link to this reg fix info though -- curious what exactly it does that current ATI cards don't.![]()
I meant a fix for SD colour expansion levels. HD expansion is correct by default. No relation to 1080p24 playback. Sorry for the confusion.
If you're interested in Reg Tweaks for the ATi Cards check out the first post in http://www.avsforum.com/avs-vb/showthread.php?t=872538 and the great work from arfster.
Cheers,
Wo0zy
1 - 17 of 17 Posts
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