Originally Posted by sodaboy581
I got my Leo Bodnar lag tester today and tested out my monitor/TVs here.
My Sony KDL60EX645 got 31-33ms in Game Mode, but all other modes were 127-133ms.
My Sony KDL46EX400 got 0.0ms on every mode. (Huh?)
My Asus PA246Q PC monitor got 0.0ms as well. (What?)
I have to believe those numbers for the KDL46EX400 and Asus PA246Q have to be wrong... I mean, I've never felt severe lag on either of those displays, but how could it really be 0.0ms?
I was trying to think of a way I could have goofed the test, so I went back and tried the KDL60EX645 and it measured correctly. So I went back and tested the Asus and the EX400 again... Still 0.0ms on those two screens.
Both of those screens are CCFL based LCDs, so I'm wondering if that has anything to do with it... Anyway, it's whatever, as long as accurate numbers get shown from displays I test from now into the future, I'm OK.
Some displays don't work right with the tester. Funny thing is my friend has a display from the same model line of that year (I think its an EX400), and it gave me the same problems you mentioned with the 0.0ms. Theoretically, it should not be possible for a display to do numbers lower than 16ms using the bottom bar. So use that as a reference. I also tested a Samsung LN46C630 from 2009 and it acted weird with the tester too. I know for a fact both of those TVs lag, so don't use the 0.0ms reading as reference.
On the other hand, I have a newer model of the monitor you tested, the PA248Q, and that tested just fine using the lag tester. Mine rated around 36ms. The PA248Q is the LED backlit version of the PA246Q. The majority of displays test fine with the tester. Aside from those problems, the only other issues I've had are the big Sharp TVs not registering the signal properly, so I had to keep trying till it did.
I don't know if this will change anything, but try using a DVI adapter on your PA246Q. The adapter will not add any lag to the reading. I tested a ASUS VH238H which would give me readings with a BLUE background, so I couldn't measure it. I used a DVI adapter and it worked fine after that.
I'm pretty sure your tester is working fine, some displays are just weird.Edited by FourWude - 3/3/13 at 9:01am