Hmm I have an HDMI to DVI cable. Conceivably if I had an HDMI splitter and a CRT that accepted DVI in I could do some decent tests.
As far as whether or not the clone mod on a video card is trustworthy, couldn’t you just do one set of tests, switch the ports on the card that the cables are connected to, and run them again?
If its consistent lag yeah. But you’re still stacking assumption on assumption.
Another issue with the makivision arcade LCD monitor is that for some games the color,brightness and contrast for way off. From CPS2 ST, or ZN1 and ZN2 arcade boards as well as System12
Ironically though it works great with CPS1 and the old Konami beatem ups (Xmen and Turtles), doesn’t sync with UMK3 though. Thats on top of the about 15-17ms lag of consistent lag.
I’d prefer to test the monitor against a CRT that we know should be 0 lag, as opposed to trying to test it against something, who’s lag we know only from other tests (which were likely against a CRT). If you swap the connections on the video card that would help expose a laggy port of the results skewed. In any case I don’t have to equipment for any of this so I guess it’s an moot point, for me. If someone does have the equipment more power to them and post us up some numbers.
I say testing it against the VH236H is fine since people only REALLY care how bad it (the VH238H) is compared to the official Evo monitor.
Here are some solutions to problems above:
Unfortunately I don’t have a VH236H to test against.
I do wonder, have people continued to test the VH236H? As manufacturing has gone on have they ever started using different parts. For example the Model of 32" TV I got last year, an LG 32LH30, was in the 1-2 frame range I believe. But as time went on people started to notice that they were using different panels in the TVs that had more input lag. It got to the point that it was a total panel lottery as far as which one you got. I had to buy a universal remote and program it in such a way that the menu button brought up a special sub menu that was usually inaccessible, in order to confirm what I got. Could anything similar to that have happened to the Asus monitors?
I already ordered the VH236H and I’ll compare it to the same CRT using the same equipment and test method. I actually wanted the alienware aw2210 optx, but it seems like it’s discontinued and I can’t find it anywhere.
I await your results Aktham. Any way to compare the VH236H to the VH238H after that? Or do stopwatch tests on each compared to a CRT and then each other? Thanks.
Just an offhand suggestion,
Can we get an updated 1st post on (acceptable methods) how to test lag, rather than having folks dig through the thread?
If you’re doing two dvi or hdmi outputs, you can just use a splitter.
I just got the VH236H in today. I was able to test it out with the exact same method and the results are…
14ms of input lag. I repeated the test 10 times and it was 14ms every time.
According to my tests (RB2 calibration) VH236H = VH238H in terms of input lag. Sony CRT had 0ms of input lag. I hope this helps others decide.
Well, it makes me feel better about sending in the for the rebates.
In the next few days (hopefully today), I’ll be testing input latency times with roughly 8 or 9 different LCD monitors including the VH236H Evo monitor
against one of my Blast City CRT arcade monitors.
I’ll be using a lagless powered VGA splitter with two devices:
1 = 360 with VGA connection (with Rock Band 2 and potentially a racing game with millisecond timer in time trial)
2 = Computer with VGA connection (with FlatPanelsHD and as many other tests as I can find)
-FrankCastleAZ
Hi everyone, wanted to say first of all that this thread is awesome. Just got a 32" LG LD450 with the W/S-IPS panel. In addition to the low input delay, its VGA port is very flexible with different resolutions (unlike my parents’ Samsung, 1024x768 max). Obviously it accepts 640x480, and it also takes 1920x1080 which is great. One that I wasn’t expecting to work is 848x480, but surprising this works as well. Since this will eventually be the monitor for a MAME cabinet, this is particularly useful. It’s a proper 16:9 ratio resolution like 1920x1080, but sticking to 480 lines allows the proper use of an SLG-3000 or similar scanline generator. This is critical for 15kHz games to look decent on a flat screen display, see here for more info. MAME can keep normal 4:3 games letterboxed within this resolution, while allowing the front-end and wider aspect ratio-ed games to take advantage of the extra space.
Anyhow I do have some questions. First of all, when I’m playing PS3 on this new TV, does it make a difference, as far as lag is concerned, whether I’m using component or HDMI?
Also, I used to think that a TV with a 120Hz refresh rate or higher would provide a smoother picture. However, it would be pretty hard to find a game that puts out more than 60 frames per second anyway. So, is my new 60Hz TV good enough in this respect anyway?
Hi, which VGA splitter do you consider or know to be lagless? I have wanted to use one in the past but was put off for that reason.
Someone help me out here? I’m reading this review of the LG IPS236V:
http://www.pcmonitors.org/reviews/lg-ips236v-review-by-prad-de
“Input lag was very short indeed, measured at just 1ms and was therefore virtually non-existant. For the total latency experienced by the user you must also consider several other factors including the pixel transition itself and the delay between frames (see this article). On this note; the overall responsiveness of the LG IPS236V left a lot to be desired according to the review. The stated ISO response time of 8ms and grey to grey response time of 5ms (see the monitor technology article) were far from achievable using an accurate oscilloscope-based measurement. Prad.de recorded an average response time of 30.8ms, which just goes to show how ludicrous and misleading the specified values of such things can be. They noted that a stronger overdrive algorithm would have been preferred and that they found the trailing bothersome.”
Can someone clarify this statement? It’s all mumbo jumbo to me past the sentence containing input lag.
Here’s the review from prad.de (in German):
http://www.prad.de/new/monitore/test/2011/test-lg-ips236v-teil13.html
Hey great new topic about lagless monitors, certainly much better than the old post,
anyways, I bought ASUS monitor vk266h long time ago, I don’t know how to test input lag , so can someone please
test it and put the result here, the ASUS official site shows it has 2ms responses but I have doubts 
Also what does the trace free (grey to grey ) actually do? Is it useful to decrease input lag ?
Dell U2312HM not really 0,6ms i was tested a rock band 2 really input lag is 17ms -20 ms. please remove 0,6ms This is a FAKE!!!
THIS powered VGA splitter from monoprice.
You can see HERE when I was testing the VGA passthru on an HD Box Pro that there is no difference between the latency with the VGA splitter and without it
-FrankCastlleAZ
Some people have claimed that the Rock Band 2 tests aren’t accurate.