Originally Posted by ToastyX
A double image indicates the frame rate is 60 FPS. You're seeing a double image because each frame is being strobed twice at 120 Hz. You'll need to find out why the frame rate is being limited.
Some ghosting towards the bottom of the screen is normal, similar to the image on the right except fainter.
Originally Posted by mdrejhon
But the poster said that one ghost image is fainter than the other. The LightBoost trailing sharp ghost should be faint -- only 1% to 5% intensity, tops. Some monitors (XL2420T) have it worse than others (XL2411T).
HOWEVER... if the double image effect is equally strong, then it's definitely a 60fps@120Hz issue.
If it's almost as strong (e.g. 25% or 50% strong) and you see the double image clearly in all games (even older source engine games), and you are very very very certain it's not the 60fps@120Hz effect, then your LightBoost is probably defective. (I'm of course, talking specifically about VG248QE and XL2411T which doesn't have much LightBoost trailing)
If you are using the stereoscopic Control+T method, try ramming Control+T several times -- sometimes it 'unsticks' the 60fps@120Hz into 120fps@120Hz. However, it's best to disable the stereoscopic 3D checkbox if you've already setup lightboost via ToastyX method.
Thank you both for the replies.
The double images are equally faded and the areas in which they overlap are the strongest in brightness. I've tried LightBoost @ 100 Hz, but there was no improvement. I'm using the ToastyX CRU method and the stereoscopic 3D checkbox is disabled. My monitor contrast is already set to 65 and decreasing it to 50 did not help.
Both FRAPs and in-game FPS counters indicate that my FPS is being capped at 120. If I pan my view fast in-game, it results in a panorama of double images and I'm unable to see anything clearly. This happens on all sections of the monitor (top, middle, bottom). From the looks of it, each frame is indeed being strobed twice. Unfortunately, I'm not sure how to fix this.
For now, I'll try updating my video drivers (currently version 311.06) since I've had driver errors pop up in the past.
P.S. I forgot to mention that in PixPerAn, it says 60 FPS in the top-right corner even though LightBoost is enabled @ 120 Hz. Switching to Lightboost-disabled 144 Hz results in 72 FPS in PixPerAn. Is this normal? V-sync is turned off and I'm running Windows 7.Edited by Karnaj - 6/23/13 at 9:44pm