Sub 1 frame HDTV/Monitor Input Lag Database

Now is there a difference using HDMI vs Vga cable when it comes to input lag? How do they hook up the monitors at EVO?

Sent: 05 March 2012 21:33
To: email@tftcentral.co.uk
Subject: Dell u2312hm question
Hi, my name is M*** D**** and I am wondering how much confidence you have in the test that reported an input lag of 0.6 ms? I have heard lag times in the 8~9 ms, and I am just wondering if you could expand a little more on that subject and the U2312HM.

Thanks for any response,


Hi M***

Thanks for the email. The input lag measurement of the U2312HM was done using a single basic stopwatch method at the time and so there is a degree of error in using that method unfortunately. It was a reasonably fair comparison against other screens we had tested before using the same method and was certainly a very low figure. You may want to have a read of this article which talks about various input lag testing methods in much more detail:

http://www.tftcentral.co.uk/articles/input_lag.htm

I have also seen various readings for the U2312HM and would conclude that the signal processing lag is ~1ms but the overall image lag (taking into account response time as well) is around 9ms. The errors within the traditional stopwatch method would account for the difference here. In reality there is very little lag between the U2312HM and a CRT which is great. Prad.de also tested the U2312HM using a very high end and expensive oscilloscope method and recorded 1.1ms signal processing + 8.2ms response time = 9.3ms overall display lag.

Hope that helps

Simon

Major League Gaming 2010 Pro Circuit Settings and Equipment:

Halo: Reach
Monitor: Asus VH236H* Resolution: 1920×1080

  • Reference Level: Intermediate
  • VGA
    Console: Xbox 360
    Switch: Netgear gs108

Player Equipment/Illegal Equipment

Players may not use a Turbo controller, a Button Macro controller, a Wireless controller, or a Play and Charge Kit. Turbo controllers allow Players to press a button that results in their Character performing a set of actions that would normally require the Player to press the same button multiple times. Button Macro controllers allow Players to press a button that results in their Character performing a set of actions that would normally require the Player to press multiple buttons.

Players may not use a controller that has been modified in such a way that it alters their Character’s abilities and/or in-game mechanics. Players are allowed to make cosmetic changes to their controller. However, Major League Gaming reserves the right to deny the use of any controller suspected of providing an unfair competitive advantage.

Players and Coaches may not use a Wireless headset or a headset that requires an outlet for power.

Call of Duty: Black Ops
Monitor: Asus VH236H

  • Resolution: 1080p
  • HDMI

Console: PS3
Switch: Netgear gs108

Player Equipment/Illegal Equipment

Players may not use a controller with Turbo capabilities, Button Mapping capabilities, or more buttons than the first party wireless controller. The first party wireless controller is the only wireless controller that can be used. Controllers with Turbo capabilities allow Players to press a button that results in their Character performing a set of actions that would normally require the Player to press the same button multiple times. Controllers with Button Mapping capabilities allow Players to map a button sequence to a specific button. Pressing that button results in their Character performing a set of actions that would normally require the Player to press multiple buttons.

Players may not use a controller that has been modified in such a way that it alters their Character’s abilities and/or in-game mechanics. Players may not use a controller that has been modified to include a Turbo button or Button Mapping capabilities. Players are allowed to make cosmetic changes to their controller, however, Major League Gaming reserves the right to deny the use of any controller suspected of providing an unfair competitive advantage.

Players and Coaches may not use a Wireless headset or a headset that requires an outlet for power.

it would be interesting for them to test the ASUS VH236H using the oscilloscope method. I would assume it would be 8.3 MS plus to 2m(response time), so 10.3 total. close to the Dell U2312HM

I just dont get why they are adding in the response time to obtain the total input lag. I understand it may take a little longer gtg but all that would result in is some blurring. From what I have understood up to this point is response time and input are completely independent, why combine them in this formula? And also, even though the Dell has an advertised response time 4x’s that of the ASUS, I haven’t noticed any ghosting or blurring. I take it you haven’t pulled the trigger on the Dell?

Thank for reporting your email, made me more happy of my purchase :wink:

Hi guys, I’m interested in getting the Dell U2312HM since I’m going to be using it both for gaming and computer applications. I notice that it only has 1 DVI port, and no HDMI port. Having no HDMI is acceptable I guess since I can just use a HDMI to DVI cable.

My question is since there is basically only one port for me to use (not using VGA), will a DVI splitter will cause any additional lag? I want to have it hooked up to my PS3 and computer without having to reach back and uplug/plug each time I want to switch between the two.

Thanks

already pulled the trigger. Just waiting for it to get delivered later this week. Hopefully it works out and I’m sure the image quality is worlds better than the ASUS :slight_smile:

good question. I’m going to try to hook up my Mac using display port so that I don’t have to worry about a splitter. You could use VGA but I’m not sure if that affects image quality

DVI (single!) and HDMI share the exact same video signal so an adapter should not add any lag.

Anybody got any info on the Vizio E260MV?

There is still burn-in problems with plasmas. I have the Samsung PN63C8000 3D TV and have all the anti-burn-in settings active and yet I still have burn-in. The life bars from my fighting games are visible. I also watch alot of sports and I can see the ESPN logo on the bottom right corner. I followed the 100hr break-in rule too when I first got the TV.

this seems like a good place to talk about 60hz, 120hz and 240hz. when I purchased my sony KDL46-EX600 I already knew it would have less lag than a 120hz TV. NTSC 60 frames per second is the limit in every type of digital media. 3d is maybe the exception to the rule but lets not talk about that now. so here is the theory, its backed up by science too. a 120hz TV displays a maximum of 120 frames per second but half of those frames are blended frames created in the TV in software/firmware. before the TV can make a blended frame, it needs 2 things… the old frame and the newest frame of your 60FPS signal. what happens next is very interesting. it will display your newest frame as a blended frame first before it switches to the next 1/120FPS frame and displays it in its full original format of %100 opacity. so the minimum lag in a perfect world on a 120hz display is one cycle @ 120hz. BUT thats not a completely fair statement. you still get the frame you want at the same time but its only %50 opacity. so if you look at it that way, there is no lag. it just might not trigger that one pixel (actually your head) to turn full black when your sniping people across the map in MW3. it might even have a trail if its moving fast enough. this is great for football but not for gaming.

prad.de measured the visual lag at 1.1ms for the Dell. The 9.3 is visual lag + the ~8ms pixel response time. prad.de’s test result is likely to be more accurate than tft central’s, but they both communicate the same information - that this monitor doesn’t buffer frames and that it’s near lagless. You can check that yourself by throwing this link into Google Translate:

There are actual concerns with the monitor, though. A lot of them are having issues with with color tinting around the edges. If you do a search on the u2312hm and color tinting you can probably find forum posts talking about it. I bought one after seeing it listed low in this thread, and mine definitely has yellow streaks running down the left and right side of the screen about half an inch thick each. it’s not noticeable in most color situations, but you throw a white or grey background behind it (like what I’m looking at while I type this!) and it’s pretty obviously there.

AFAIK Dell is aware of the problem and is trying to get it straightened out but mixed results so far from what I hear. Some people have had their monitor replaced three or four times and still have color issues. If that sounds like it would bug you it might be good to hold off on the monitor for now, until it’s addressed.

¿Do you mean they are permanent? I have an old LG 42PQ2000, which get some temporary burn-in after long sessions of fighting games. They all disappear if you play another type of game/watch normal tv, for just some minutes. The TV is like 3 years old. I remember being maniac about using the anti-burn-in tools after long gaming sessions, in the first of more 100 hours.

Found this vid, might be of interest to the people here regarding the Dell U2312HM:

[media=youtube]UM2b7Pb6GFE[/media]

When paused you can measure the values vs crt.

I noticed the burn-in from Tatsunoko vs Capcom finally disappeared after a several months of not playing the game. It seems the burn-in I get doesn’t disappear quickly but takes many months. My TV is only 1.5 yrs old. I have all the anti-burn-in settings like pixel shift activated too…

although a permanent burn-in does not seem likely with current plasma tvs as long as you adhere to the break-in period and exhibit some caution in using your tv, there are quite a few cases out there which include quasi-burn-ins. like mkryu says, it can take an extended period of time to get rid of image retention at times, and even then there is a real chance it won’t go away completely.

that being said, if you get a good panel (the spread for standard factory models seems to be quite high, though) and you are cautious, it probably won’t be a huge problem. i sent my panasonic st30e (max. 16 ms lag) back because of the green tinge/magenta noise problem, loud buzzing and doubts over the caution i would have been forced to exhibit because i don’t use the tv that much, and when i do it is mainly for gaming.

I’f the biggest fighting game tournament in the world uses asus vh236h monitors there’s your proof ! I own it and hdmi gamemode Its top of the line for the price it’s really great!!

Most of those monitors on the first page have a resolution of 1080p, won’t there be additional input lag if you’re running a 720p source on 'em (e.g SSFIV:AE on PS3) because the monitor is upscaling the image to its native resolution? If that’s the case, I wish the reviewers would test different resolutions on a monitor to see how different the input lag is when scaling is involved.

This is something I always wonder about. Has anyone even seen the input lag test results for the VH236H? I’d be willing to bet that they didn’t test it with a native 720p source… Which is exactly what PS3’s send, unless the game is actually native 1080p (which is pretty much no games).