There seems to be a strange bug that makes load times many times longer when i run skyrim on 24hz.

Load time on 24hz is 1 minute and 4 seconds.
Load time on 60hz is 7 seconds.

I have also noticed that when i run my monitor (tv) on 24hz and flip to windows desktop while loading the game it significantly speeds up the loading process.
I also notice significant mouse lag on 24hz.
Hope this helps someone. And that there will be a solution to this problem.

Why would i run the game in 24hz? Because i have a 3D tv. And while skyrim looks awesome in 2D, it looks even better in 3D!

My rig:
Hexacore intel i7 clocked at 4.2 ghz.
16 gig ram clocked at 2133 ghz
Nvidia gtx 460 1gb ram (SLI)
Triple raid ssd, continous read speed at about 1,2 gb/second
Skyrim 1.4 beta

If there is any way i can help or if you need more information please let me know!

/Peter

3D? I don't think Skyrim is compatible with 3D. As a matter of fact, Todd himself said he is not a big fan of 3D.

You should probably stick with 2D (60hz) if I were you.

If you had tried the game in 3D you wouldn't say that.
Basically most games are 3D compatible, they just require double the frame rate. There might be minor bugs, but basically they work.

Still, the loadtimes are very slow on 24hz, no matter if i run the game in 3D mode or 2D.

Looking at your specs again, I am not sure if a 1 gb 460, even in sli, is enough for all the work Skyrim is trying to do.

Just to be clear, do you have any la or stutter or is it the long loading time just bothering you?

I've never been a fan of 3D movies (except Avatar) and would have never even thought about buying a 3D TV, but for a game - that would totally work. Games (3D anyways) would really suit this. Totally have to try this one day!

To your problem, try searching in Google (no, I'm not being a smart a$$ ) for 24hz slow game or something like it.
I found these:

http://forums.overclockers.co.uk/showthread.php?p=19555410
http://forums.nvidia.com/index.php?showtopic=215977
http://www.gamesas.com/fixed-dx11-performance-24hz-bug-t154879.html

The first one is interesting - basically changing a bunch of system settings. The Crysis one may not apply.

EDIT: And just re-read your post and you just mentioned loading times rather than slowness (except for mouse lag). So this may not even help at all. Sorry! Have no idea why the loading times would increase with the frequency change.

How do you actually run the game at 24hz anyways? I can't really test that out to help you out. Is it graphics controller setting, or is it a nVidia setting? Looking at this link:

http://forums.nvidia.com/index.php?showtopic=216203

It's a nVidia setting I'm guessing. Anyways, hope this helps!

don't run 24hz... why are you running 24hz.. even for 3D capability.. you don't need 24hz...

the only time 24hz is of benefit is to playback a blu-ray/dvd video.... to cut down on a the upsampling required to keep it in sync...

any game set to 24hz will typically result in the experiences you have.... just throws things off as non-standard format for pc games.

It's fast enough. I'm not experiencing any lag. Not even with a bunch of hi-res texture mods.
The GTX 460 is not a bad card, i've seen tests where it outperforms the newer 560. And a sli test when it is at par with the 570.

The problem is long load times. 1 minute on 24hz compared to 7 seconds on 60 hz. There is quite a difference.
On 24hz i can load a save and then minimize skyrim and then i get a load time of about 7 seconds. Weird huh?
Hope this clear things up.

Yup. Most 3D movies are awful. But for gaming its quite different, i feel it really helps you get into the game more.


In nvidia settings i set the screen refreshrate to 24hz. Skyrim then uses vsync to sync the framerate to my monitors refreshrate (probably to avoid tearing).
Although i'm not sure about this. All i know is that my framerate is steady at 24 when i run fraps.

You know, I wonder if this has to do with a situation I had a while back where I was loading the game in a window to play with ugrid and due to that the game wanted 30fps for some reason...and when that combo was in play the load times would increase like crazy. I've always heard about the Gamebryo having really odd attachments to refresh rate, I wonder if this is one of those too.

Hehe, you tell me. I've always had these long load times. I just happened to see on a forum that people were having incredibly short load times compared to mine, and then i started looking into this.
Apparently i'm not the only one with the 24hz problem. People usually solve it by playing at 720p instead, but that just doesn't look good.

There's a bug with some people who limit their FPS to 30, and they get horrible loading screen times. Limiting it to +30 seems to help them.

Seems related...

I'd love to know the underlying cause.
A ~2 fold increase in loading times would be easily explainable; but a 9 fold increase?! Sounds like something very peculiar is going on.

Makes you wonder if load times for everyone might be shortened if the underlying cause of this 24Hz issue is fixed.

Yeah, i agree. This could potentially make the game run generally faster. Who knows in what other ways this impacts the over all performance of the game...

Hmmm I do remember reading something about physics/simulation being tied to framerate and causing some unexpected bugs when framerates dropped too much in fallout 3. It was tied to the iFPSClamp setting. Tweakguides documented it a bit (search physics): http://www.tweakguides.com/Fallout3_8.html

Unfortunately it seems that setting does nothing with Skyrim, it would've been interesting to try setting that to 24. You may also want to try forcing Vsync using iPresentinterval=1 or using one of the frame limiters out there to see if any of those help with this issue.


Also, for the 3D haters out there, only thing I will say is try to keep an open mind about it, because some day, you may appreciate this game and others in stereo 3D and regret some of the statements you made about it. Skyrim in 3D is really an amazing experience despite some problems and its even better now with the 1.4 updates that allow much higher framerates, 60FPS almost always in 3D at a full 1080p.

For those of you with 3DTVs or smartphones that can view Youtube 3D HTML5 content, you can check out a vid I made here: http://www.youtube.com/watch?v=x8d-rdDPcTA&list=UUEICau0NrhwYL9UzIcRlisw&index=2&feature=plcp

Keep in mind, that video was done with only 1xGPU and had to be scaled down/compressed considerably to meet Youtube's requirements.

I have noticed some micro stuttering, so i'll definetly try to tweak that setting to 24 when i get home. Thanks for the tip!
And i'll be sure to check out your vids!

Can I ask mate, why are you running in 24hz and not 30hz (half your refresh rate), if 3D only needs double the fps?

Ah, the tv only supports 3d in 24hz although the display runs in 120hz while displaying it.
Perhaps it supports higher refresh rates if i connect it with vga or dvi instead of hdmi. I'll try tonight.

It might be worth trying dvi mate. Hdmi is the same but with audio, however your tv may be treating it as a Bluray player and thusly 24hz would be right.

Using dvi may enable proper pc refresh rates for pc. It may be worth actually googling it a bit and see if other folks can use your tv at higher refresh rates for pc 3D.

Apparently 3D monitors and 3D tvs differ quite a bit. At the present a 3D tv can only display 3d with a 24hz signal while a monitor can display up to 60hz per eye.
So i'm back at square 1.

If you have vsnch on it can increase load times on soem games, the CPU ends up doing tons extra work during the loading screen to stop the FPS going over the limit and it can end up with actuall game loading as a lower priority process it seems.
I used to experience this a lot with GTAIV for example when loading screens could hit in excess of 7000FPS (probably even went over 9000 ) at some points, giving a nice screeching sound in your cards capacitiors too. The game however loaded far far faster than when vsynch was enabled to keep the FPS at 60. And that was the only difference in settings altered during the game.
I would think trying to keep it down to 24Hz would be even more of a stress on the system.

that's odd.. i've a samsung HDTV 3D and accepts a 60hz frequency while running 3D... the point of 120hz is to allow it to figure out the individual eye information so that 60fps can be retained..

otherwise playing back a blu-ray requires 24 hz and then the tv automatically figures out the additional information...

technically it's 48"hz" due to double the amount of information being sent to the tv in order to retain a 24hz or 24fps OVERALL frame rate (otherwise 24fps devided by 2 would be 12 and that would just be horrible)

Cool!
I have a samsung too. I'll have a look once i get home from work.

You have to be a bit more clear about what HDTV you're using and the resolution you're playing back in 3D. The HDTV 3D space is heavily restricted by current HDMI 1.4 specifications and on top of that, the Nvidia 3DTV Play software limits playback in 3D to only a few output modes.

Basically, the reason the OP wants to run at 1080p/24Hz in 3D is because it looks much better for a variety of reasons (don't really want to get into the scaling and signaling reasons behind it), but the trade-off is much lower FPS. The alternative with HDMI 1.4 and Nvidia 3DTV Play is 720p/60Hz in 3D but the image looks much worst.

There is the potential for some Samsung HDTVs to use an output method called checkerboard which allows CB output at 1080p/60Hz, but this involves some workarounds to trick the Nvidia driver.

@lugiber, I would try to limit the focus here to see if others are seeing the same issue at 24Hz playback and to see if Bethesda is aware of the problem. You'll get much better feedback on the capabilities and output limitations of your 3D display on the Nvidia 3D forums.

yeah there are numerous issues surrounding 3D playback.. although some of it is supported through the 1.3hdmi spec.... just not very well (half resolution).

I'm just saying that do a little research on the model of tv your using.. if you can avoid using 24hz.... do it... 24hz wasn't intended to play games at..... although it'll produce the lowest possible frame rate ..... anything higher would be much preferred.

There are TONS of games that do not like anything below 60hz while on a computer.... i know prince of persia 2008 really didn't care for it...

Tons of them would actually run in total slow motion due to an "abnormal" frequency... 30/24hz is NOT at all common. The standards have always been 50hz/60hz as the typical output/input frequencies and then with more modern tvs/devices, they would ramp things up from there using whatever tricks they wish to do it.. either by just drawing the same image twice as many times as they would @ 50/60hz. or more...... OR by introducing computer generated image interpolation frames giving the appearance of double the frame rate (which ROCKS if it doesn't introduce any noticeable lag/delay)... or by slipping in black frames between producing a much more vidid image by clearing the previous images pixel differences.

There are more ways..

Having been playing with the Samsung UN65D7xxx series tv recently.. although i haven't tested it on the UN55D6420/6500.... ... which supports some formats out of the box.. and some formats that aren't specifically supported.... 3D is neat and everything but i do have to say they really have to sit down and come up with a standard that doesn't involve eletronic glasses/or glasses at all...

Need for speed has an issue with frequencies below 60hz.

Again thanks for all your help!

The game only use about 2gb ram and i have never seen my cpu go over 20% load when running skyrim. So this shouldn't be hardware related.

My display/nvidia drivers doesn't support 3D on higher values on 24hz.
And to make things clear, i don't mind playing on 24hz. That works just fine for me.

What i don't like is having to wait ten times longer for the game to load. That is really bugging me!
But this game is really awesome, so it is definetly worth the wait.

Ah ok, my apologies then