been following this thread with avid interest, coming off the back of 4 years+ tearing my hair out trying to figure out why "all my problems started with flatscreens" (being an ex CRT user).
Some people have reported more eyestrain with LightBoost, while other people reports less eyestrain with LightBoost. It really depends on the individual.
i'm interested to know if the lower 120hz PWM backlight frequency is still noticeable as flicker? I mean whats the point in switching to a xl2411t or w/e if the darn thing still has no phosphor or 'lit state' persistence (e.g. CRT/CCFL + max brightness)?
Motion-blur-optimized PWM can have very different behavior on the eye than dimming-optimized PWM. People who are used to CRT, and are comfortable with 120 Hz CRT flicker, sometimes find LightBoost have no extra eyestrain (because it's easier to track moving objects, just like on a CRT). Vega and others on HardForum have posted as such --
Vega on HardForum reports that he got no eyestrain with motion-blur-optimized 120 Hz PWM, while he got eyestrain with 360 Hz dimming-based PWM. It was rather interesting reading...
But it depends on the person. You might get more eyestrain. You might notice no difference. You have to try it out for yourself. Worse comes to worse, you can just turn off LightBoost, or at least when you exit the videogame and go back to the Windows desktop. Also I should point out: The XL2411T is still an excellent 120 Hz monitor, with extremely small input lag, with no PWM flicker when you use 100% brightness and disable LightBoost. So XL2411T is still an excellent gaming monitor, even without LightBoost; the LightBoost is a bonus.