Issue with dark lighting on a BenQ G2222HDL

antonusklesk · 19 Feb 2011 at 18:39

Hey guys,

I'm not too clued up on the ins and outs of monitors, but I've noticed a bit of an issue with the G2222HDL I got last week.

It seems perfect and amazing for the price, but I've noticed that in games with dark sections I can leave lighter patches in the black, sort of like leaving a trail, I'm sure there's a term for this but unfortunately I don't know it.

I believe the correct colour profile has been assigned by windows, I've played with all the brightness / contrast / mode settings and cannot resolve it, and I've gone through the colour calibration setups.

The really strange thing is that I can't seem to replicate the effect in Windows at all, only in games does it happen, elsewhere the monitor is phenominal for the price.

Is there something I'm missing that I should have done?

ItAllMeMeMe · 19 Feb 2011 at 20:22

I dont own an LCD monitor yet but I think the effect you're describing is called ghosting. It takes several milliseconds (ms) for an LCD pixel to change from black to white, this is called the response time.

PCM2 · 19 Feb 2011 at 20:59

It is most probably caused by the BenQ's AMA (Advanced Motion Acceleration) 'overdrive' implementation that is designed to speed up certain pixel transitions. The effect you observe can be referred to as 'halo' artifacts, 'inverted trailing', 'overdrive trailing' or several other related terms. I believe it may be possible to disable AMA via the monitor OSD? You may find this increases trailing in some instances but if it's not too inconvenient for you it may be something you like to enable on certain titles and disable on others.

antonusklesk · 20 Feb 2011 at 11:50

Cheers for that, I can't find a setting for AMA anywhere, just something called senseye, but I can't turn that off only enable a shop demo of the effect.

I think I may have been a bit of an idiot though, I'd seen some left over light marks from the screen in other games when the screen fades (Starcraft 2, BFBC2) and in amnesia it seemed to be aweful.......however, there's a setting hidden away in there for image trailing, which I think is the effect I was observing, so disabling that has solved my issue!

On the plus side, I think the monitors at least calibrated correctly now as a result of me trying to fix an issue that didn't exist

PCM2 · 20 Feb 2011 at 14:31

Oh right. Well that's a good motto for monitors - when it doubt, fiddle. Just make sure you remember what you 'fiddled with'.