Large LCD owners - do you notice flicker?

[bob4432]

i just picked up a acer p221w 22" 1680x1050 lcd and notice a faint flicker even when the screen is still. almost like a power issue w/ the monitor. anybody else notice this on certain lcds?

i am going to be taking it back, but like the size. is this a bunk lcd or is this normal for this model?

do most of the larger lcds not have this problem? i would really like to get another 22 or maybe 24 as my 4850 is able to push this resolution fine for the games i play (bf2, cohf, cod4), so thinking 1920x1200 may be doable too.

thanks in advance,
bob

 

[MustISO]

I've never seen any type of flicker on an LCD and I'm very sensitive to it on CRT's.

 

[CKent]

22" Acer, no.

 

[BTRY B 529th FA BN]

what is the ms response time?

 

[bob4432]

5ms.

it is not a flicker during the game, actually i see it more on a regular static website - like a grey or white background, i see it flicker, like a crt that has too low of a refresh rate or even a light bulb. like on this page i can see a faint flicker. during gaming, no ghosting or flickering, maybe because i am concentrating on the game and not a static item?

fwiw, i am extremely sensitive to all kinds of flickering lights - flourescent, incandescent, cfl, basically anything 80hz and below i pick it up and it is very annoying. and i have had neurological issues for 25+ yrs.

 

[DaveSimmons]

Did you try different refresh rates in the 60 -75 Hz range?

I've had LCD monitor / graphics card combinations where setting the refresh to a different value got rid of flicker.

 

[Mark R]

Some monitors have a backlight with adjustable brightness - and the backlight may flicker as part of the brightness control.

We have monitors like this at work - yeah, it's great that the backlight brightness changes with room brightness, etc. but the monitors flicker like mad. Move your eyes past them and you see a whole set of 'rainbows'.

 

[gplracer]

no flicker here on a dell 24"

 

[bob4432]

no refresh adj, just 60hz

 

[Boobs McGee]

Originally posted by: gplracer
no flicker here on a dell 24"

Same
I have never noticed it on any of my laptops either.

 

[bob4432]

i don't see it on my laptops, my 40lcd, my 37lcd, my 17lcd, just this 22.....it almost has the same effect of when you need to change a flourescent light bulb, that flicker, just not as obvious but still there

 

[Boobs McGee]

I dunno man. Did you buy it local? If so, did you notice it on the display model? If not, I would say exchange it for another and see if that solves your problem.

 

[bob4432]

it is going back tomorrow, and no, i didn't notice on the display model, but they weren't working correctly, so who knows. i think i am going to get a 24 anyway since my 4850 was able to do everything i need it to game wise @ 60-80fps on all high settings, so 1920x1200 will give me more real estate so when i am doing a bit of editing whether it be web, photo, video, audio or whatever i will be able to have multiple programs opened at once all on the screen, and then use my 17" as the final testing since i use either 1024x760 or 1280x1024 as minimums now for web stuff

now the hunt for a nice, decently priced 24" unit...any ideas? not to worried about what type of panel, just no flicker,

edit - just looking around @ 24" = $350+...damn, maybe 1680x1050 is ok to save a ~$150

 

[corkyg]

Taking it back is the right thing to do. LCDs really do not flicker if they are working properly.

 

[Rubycon]

No it sounds like a backlight inverter problem. If the backlight is indeed controlled by a photodetector as Mark pointed out it may have a problem with hysteresis. This can be caused by another source of flickering light (could even be invisible) or a cell phone. Those are possibilities but remote IMO. Most likely the inverter OR fluorescent tubes/wiring is faulty and the output is flickering. We call it the Geissler Tube Effect.

 

[kmmatney]

My 28" Hanns-G will sometimes flicker when first powered up - thankfully it goes away in about a minute. In my case, it definately a backlight problem, flickering in the same way a flourescent light fixture might flicker.

 

[Rubycon]

Originally posted by: kmmatney
My 28" Hanns-G will sometimes flicker when first powered up - thankfully it goes away in about a minute. In my case, it definately a backlight problem, flickering in the same way a flourescent light fixture might flicker.

When you use a single Hanns-G monitor is that called a Hanns Solo?

:laugh:

 

[sonoma1993]

Originally posted by: bob4432
i just picked up a acer p221w 22" 1680x1050 lcd and notice a faint flicker even when the screen is still. almost like a power issue w/ the monitor. anybody else notice this on certain lcds?

i am going to be taking it back, but like the size. is this a bunk lcd or is this normal for this model?

do most of the larger lcds not have this problem? i would really like to get another 22 or maybe 24 as my 4850 is able to push this resolution fine for the games i play (bf2, cohf, cod4), so thinking 1920x1200 may be doable too.

thanks in advance,
bob

I have the same lcd monitor at home, really like it. I don't have any flicker issues with it? Have you checked the refresh rate? if the refresh rate is normal, I would say it's defective