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[Official] The Qnix/X-Star 1440p Monitor Club - Page 533

post #5321 of 25911
Quote:
Originally Posted by ragnarok08 View Post

I thought for PWM the flickering is barely noticeable by human eyes.

PWM flickering is not noticeable at a nomal brightness (120cd/m2). Most people do not set to the lowest brightness, but if you read up on PWM & duty cycle you should see why flickering is more noticeable at the lowest setting.
post #5322 of 25911
Quote:
Originally Posted by SinfulRoad View Post

I believe it's because the QNIX uses PWM back lightning.

I notice the pwm backlight flickering all the time on the lowest brightness setting. It's faint, but I can tell it's there. Almost like my eyes are fatigued from staring at a screen for a long and tweaking out a bit.

However, I do not notice it one bump up from the lowest setting. Kinda annoying, but you get what you pay for.
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post #5323 of 25911
Quote:
Originally Posted by ragnarok08 View Post

I thought for PWM the flickering is barely noticeable by human eyes.

I can't really tell but if i stuff my face in the screen at lowest brightness i can kinda see a flicker. I am really wondering why this is such a big deal? I mean is PWM that bad? I have never had an issue with it that i am aware of and never considered it a make or break variable.

Tell you what i will go over to our marketing development guys today and pull two monitor out that are as much the same as possible aside from PWM and see what i can personally tell. Also i am sure there is some reviews like this on the net elsewhere that can be gone through.

To pinpoint things no one was worried about this or had an issue with it till it was recently brought up. I would also like to see definitive answer on whether it uses it. Heck the flicker could always be something else.
post #5324 of 25911
Well i found this for the name brand display:

"""""""""""""
“As well as S27A850D , S27B970D also uses quite remarkable combination of lowering voltage and PWM brightness control. Roughly up to 140 cd/m2 is regulated without PWM at lower levels then with PWM, and the frequency is less than 182 Hz. That was not much, if it were only regulated by PWM. When the combined brightness control such frequency would you not mind, perhaps the most sensitive of you maybe.”
"""""""""""""

Source
http://extrahardware.cnews.cz/samsung-zpatky-elite-s27b970d-je-stylovy-27-pls-hw-kalibraci/strana/0/10


EDIT: Come to think of it with this information being known, This might be why it overclocks so well but does have side effects. We are pushing the frequency onto this feature thus degrading one aspect to get another(but we kinda sorta knew that already)
post #5325 of 25911
Quote:
Originally Posted by SinfulRoad View Post

I believe it's because the QNIX uses PWM back lightning.

Listening to MeancingTuba's review he brings this subject up exactly at 20:23 - 21:35 into the video.

He did not find the monitor to use LED PWM dimming but said another reviewer from Overclock.ru claimed it did use LED PWM dimming and either the other reviewer was wrong, Menacing was wrong or the QNIX may come in either version: one that uses PWM dimming and one that does not.



Quote:
Originally Posted by ragnarok08 View Post

I thought for PWM the flickering is barely noticeable by human eyes.


Most people do not see PWM flickering and are not effected by it. However for those people it does effect it can cause nausea, headaches or eye strain when viewing the monitor and it's an issue. Again the percentages are so small that it's not something that is a concern for most users.
     
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post #5326 of 25911
Quote:
Originally Posted by Arizonian View Post

Listening to MeancingTuba's review he brings this subject up exactly at 20:23 - 21:35 into the video.

He did not find the monitor to use LED PWM dimming but said another reviewer from Overclock.ru claimed it did use LED PWM dimming and either the other reviewer was wrong, Menacing was wrong or the QNIX may come in either version: one that uses PWM dimming and one that does not.

Most people do not see PWM flickering and are not effected by it. However for those people it does effect it can cause nausea, headaches or eye strain when viewing the monitor and it's an issue. Again the percentages are so small that it's not something that is a concern for most users.


I saw the conflicting information on Internet, too. If everyone has the flickering issue at lowest brightness, then it's probably not an issue. However if it only happens on certain monitors, its a quality issue with the monitor itself.

I had to return my first QX2710 because there is a vertical line to the right of screen running from the bottom all the way to the middle of the screen. I don't want to go through the same hassle again.
post #5327 of 25911
Quote:
Originally Posted by N3C14R View Post

I got my "Perfect Pixel" x-star dp2710 and there was a stuck blue pixel 1 inch from the left edge of the screen. Not sure if it's enough to warrant an RMA though...

Stuck pixels can usually be fixed.

Take a cloth or something soft and put it over the stuck pixel then play a video or something so that there is motion on the stuck pixel then with the cloth over the pixel tap it with a pen. You may have to do it pretty hard and try quite a few times but this has always fixed stuck pixels for me.
post #5328 of 25911
I got my monitor today and I must say this is epic. Well worth it and dream seller is the best. They even have a little note in that says thank you for buying and they have opened it to test the monitor. no black light bleed. only problem is my 570sli can't really push over 85Hz.

I can push bf3 at about 70-85FPS with vsync on and on max graphics except aa and post aa. but I running on setting suggested by rival xfactor and game is smooth now
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post #5329 of 25911
Did anyone not get an adapter like this?


Got it all setup to only find out I don't see any adapter :/
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post #5330 of 25911
Quote:
Originally Posted by exzacklyright View Post

Did anyone not get an adapter like this?


Got it all setup to only find out I don't see any adapter :/

Looks like you'll have to send it back...

Just use a US 3-prong cable to connect the adapter to your outlet. That thing doesn't even have a ground pin.
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