Well here are my preliminary results from my lag time tests:
I ran 50 iterations of the Human Benchmark Reaction Time Test
. Unless noted otherwise, all tests on the ST60 were run with MPEG NR - OFF, Motion Smoother - OFF, and Video NR - LOW.
Dell U3011 - Avg 275ms
Known Input lag - 24ms
My Estimated lag - 251ms
Test 1: ST60 w/ Pixel Direct On - Game Mode Off - Pixel Orbiter On - Overscan On - Avg 347.0ms - Est. Display Lag 96.0ms
Test 2: ST60 w/ Pixel Direct Off - Game Mode Off - Pixel Orbiter On - Overscan On - Avg 322.5ms - Est. Display Lag 71.5ms
Test 3: ST60 w/ Pixel Direct Off - Game Mode On - Pixel Orbiter On - Overscan On - Avg 320.0ms - Est. Display Lag 69.0ms
Test 4: ST60 w/ Pixel Direct Off - Game Mode On - Pixel Orbiter On - Overscan On - Avg 315.0ms - Est. Display Lag 64.0ms
Test 5: ST60 w/ Pixel Direct Off - Game Mode On - Pixel Orbiter Auto - Overscan Off - Avg 305.2ms - Est. Display Lag 54.2ms
Test 6: ST60 w/ Test 5 Settings - Video NR Off - Avg 300.8ms - Est. Display Lag 49.8ms
Repeat Control Test:
Dell U3011 - Avg 279.9ms
I ran the 3rd test a second time because my animals decided to provide an unneeded distraction towards the end. Since there is a human and environmental element here I would say the range on these results is at least +/- 5ms and possibly add another +/-5ms b/c of the wireless mouse on my HTPC. I will retest with a wired mouse later but surprisingly paying attention long enough to click 250 times is somewhat fatiguing at the end of the work day!
Overall, I can say I was never able to match my times on the Dell U3011. I achieved my best times with game mode on and my own individual variability may be skewing the results of game mode a bit. At this point, I can say pixel direct appears to be quite intensive in processing requirements. It basically adds the entire input lag of the U3011 to the existing base panel lag. Game mode seems to be hit or miss in my results but I believe it is worth at least 10ms of processing improvement. I still have to finish the Guitar Hero calibration and would like to see if I can eliminate some of my own variability from the results above. The only thing I can definitively conclude from this limited data set is that the display and firmware in its current state has more than 2x the lag of the U3011 (which is not exactly a gaming monitor).
I'm willing to rerun some of these test in case I have some settings wrong or if there are other combos that may yield better results.
Added Test #5 to account for pixel orbiter setting and updated Test 1-4 descriptions accordingly.
Reran the control test at the end of the night just to make sure Test #5 results weren't due to better response time on my part.
Added Video NR settings as suggested by Supermandlb
Added Test #6 to test the Video NR setting.