Overclock.net › Forums › Components › Monitors and Displays › Samsung monitors of 2016 introduced (Curved, High Resolution, Gaming, Flat and Business monitor.), help me understand 125% sRGB and quantum dot
New Posts  All Forums:Forum Nav:

Samsung monitors of 2016 introduced (Curved, High Resolution, Gaming, Flat and Business monitor.), help me understand 125% sRGB and quantum dot - Page 356

post #3551 of 3777
First of all, I must say that English is not my native language, so I apologize for any typos or syntax errors.

I have a problem with this monitor (JAN-17, FB02). When I set the monitor to 144hz (through DisplayPort, of course), flashing lines appear on the edges of on-screen objects, such as icons, text, and even the taskbar. The problem even affects the OSD menu of the monitor.

These lines do not appear immediately, but should spend a few minutes with mixed color patterns displayed on the screen (such as a game or wallpaper). I think it can be a problem of overheating, because when I turn the monitor off for a few seconds, the problem disappears for a moment.

If someone wants to test the problem quickly, just configure the following wallpaper, at 144hz refresh rate and wait a few minutes:

WALLPAPER

I tested three different DisplayPort cables on two PCs: Geforce GTX1070 (Windows 10) and Intel HD4400 (OpenSuse Leap 42), respectively, with the same result.

The problem is solved by lowering the refresh rate to 120hz (or less) or using an HDMI cable, which is limited to the same frequency anyway.

I will try to upload a photo with the problem, but strangely my LG V10 is not able to capture it due to the noise of the image capture.

I do not know if it is a problem just from my monitor or it is a model / firmware problem.

Thank you in advance for your help and feedback. With this I take the decision if I perform an RMA.

All the best.
post #3552 of 3777
LOL yeah I see it too, mine is at the top right corner, barely visible.
Once I lower it to 120hz it disappears, most likely because of the refresh rate.
The strange thing is it is with this wallpaper.
Try http://jasonfarrell.com/misc/deadpixeltest.php and choose green color and then hit F11 to enter full screen. I have no issues, but with the wallpaper you gave me I can see the small flicker you spoke about but like I said - only in the top right.

Again this is really strange. I also loaded windows 10 default color wallpapers. Went trough all the colors without any issues, tried multiple green based wallpapers - again 0 issues. Only with this one you gave the line appears. Mine is about few centimeters long

Try this wallpaper: http://imgur.com/a/ZfEXo

It is also mainly green - I have zero issues with this one. Give it a try.
Edited by TomCruisader - 4/12/17 at 4:23pm
post #3553 of 3777
Quote:
Originally Posted by TomCruisader View Post

LOL yeah I see it too, mine is at the top right corner, barely visible.
Once I lower it to 120Mhz it disappears, most likely because of the refresh rate.
The strange thing is it is with this wallpaper.
Try http://jasonfarrell.com/misc/deadpixeltest.php and choose green color and then hit F11 to enter full screen. I have no issues, but with the wallpaper you gave me I can see the small flicker you spoke about but like I said - only in the top right.

Again this is really strange. I also loaded windows 10 default color wallpapers. Went trough all the colors without any issues, tried multiple green based wallpapers - again 0 issues. Only with this one you gave the line appears. Mine is about few centimeters long

Try this wallpaper: http://imgur.com/a/ZfEXo

It is also mainly green - I have zero issues with this one. Give it a try.

You do realise you are running your monitor at 120 million hertz?
Edited by Nicholars - 4/12/17 at 4:19pm
post #3554 of 3777
Quote:
Originally Posted by TomCruisader View Post

LOL yeah I see it too, mine is at the top right corner, barely visible.
Once I lower it to 120hz it disappears, most likely because of the refresh rate.
The strange thing is it is with this wallpaper.
Try http://jasonfarrell.com/misc/deadpixeltest.php and choose green color and then hit F11 to enter full screen. I have no issues, but with the wallpaper you gave me I can see the small flicker you spoke about but like I said - only in the top right.

Again this is really strange. I also loaded windows 10 default color wallpapers. Went trough all the colors without any issues, tried multiple green based wallpapers - again 0 issues. Only with this one you gave the line appears. Mine is about few centimeters long

Try this wallpaper: http://imgur.com/a/ZfEXo

It is also mainly green - I have zero issues with this one. Give it a try.


Greetings TomCruisader. My feedback on this subject:

I have performed the test you recommended on the site jasonfarrel.com and I have no errors with any of the solid colors that appear there.

The "hero" wallpaper, by default in Windows 10, does not give me errors either.

The wallpaper of the "truck in the grass" that you recommended, does not give me errors either.

I have noticed, that what triggers the blink error most are the well-defined patterns of high contrasts related to black and green. To understand me better, the first time I noticed this error, was playing the "Age of Empires 3". After playing about 10-15 minutes, when I positioned the camera in a forest full of trees, everything began to blink on the screen. Then I looked at something else, like sand or the sea, and the blinking disappeared. I looked again at the forest and the blinking came back and so on ...

That's why I figured that an image with a forest-like pattern shown in that game could trigger the flicker error. That's the reason for that specific wallpaper in my previous post.

Anyway, I have realized that not only with those green and black patterns the blinking is triggered, but with other games in warmer colors, such as desert in Dawn of War 2, it happens the same, but it seems after a little more time. At first, just looking at areas with high contrast such as units/vehicles/buildings, but waiting a little longer, no matter where you look, everything flickers.

This only reinforces my hypothesis which is a topic of overheating perhaps related to the over-effort of the VA panel of the monitor at 144hz.

I have not tested yet with another game genre, like First Person Shooters, to see how this problem affects them.

Well, any other help or feedback to the topic is welcome.

All the best.
Edited by NaSHOP - 4/12/17 at 9:01pm
post #3555 of 3777
Well cannot give feedback on those particular games, since I don't play them or have them. I tested similar with terrains that have the patterns you mentioned, the games are Diablo 3 and Starcraft 2, tried it on various FPS games, however I don't get any kind of flicker, at any time or game.
Quote:
flashing lines appear on the edges of on-screen objects, such as icons, text, and even the taskbar. The problem even affects the OSD menu of the monitor.
Forgot to mention that I don't experience this.
Edited by TomCruisader - 4/13/17 at 12:06am
post #3556 of 3777
Quote:
Originally Posted by NaSHOP View Post

Greetings TomCruisader. My feedback on this subject:

I have performed the test you recommended on the site jasonfarrel.com and I have no errors with any of the solid colors that appear there.

The "hero" wallpaper, by default in Windows 10, does not give me errors either.

The wallpaper of the "truck in the grass" that you recommended, does not give me errors either.

I have noticed, that what triggers the blink error most are the well-defined patterns of high contrasts related to black and green. To understand me better, the first time I noticed this error, was playing the "Age of Empires 3". After playing about 10-15 minutes, when I positioned the camera in a forest full of trees, everything began to blink on the screen. Then I looked at something else, like sand or the sea, and the blinking disappeared. I looked again at the forest and the blinking came back and so on ...

That's why I figured that an image with a forest-like pattern shown in that game could trigger the flicker error. That's the reason for that specific wallpaper in my previous post.

Anyway, I have realized that not only with those green and black patterns the blinking is triggered, but with other games in warmer colors, such as desert in Dawn of War 2, it happens the same, but it seems after a little more time. At first, just looking at areas with high contrast such as units/vehicles/buildings, but waiting a little longer, no matter where you look, everything flickers.

This only reinforces my hypothesis which is a topic of overheating perhaps related to the over-effort of the VA panel of the monitor at 144hz.

I have not tested yet with another game genre, like First Person Shooters, to see how this problem affects them.

Well, any other help or feedback to the topic is welcome.

All the best.

I had same kind of a problem few posts earlier with 144Hz mode with this monitor (https://gfycat.com/ThoughtfulInfiniteAnt), C24FG70 February 17 model.
Flickering line across the screen on the top part, happened only in 144Hz mode and got worse when there were different colors on the top part of the screen.
http://imgur.com/a/hZNd3 <- This wallpaper made the flickering line go crazy for some reason (seen in the gif above), maybe it's the grainy image and color combination.

Maybe it has something to do with those "quantum dots"?
Returned the monitor and got a different one. Guess I have to wait year or two for better VA/IPS monitor suited for 144Hz gaming.
post #3557 of 3777
Tested both wallpapers, I have no flickering at all.
It shows like I said with the green leaf wallpaper, and it's odd. I tried numerous others without any issue, ONLY this wallpaper does it, and again like I said top right, very short line.
I don't consider this an issue, but then again it is not severe like yours so, that does not count for you guys I guess...
Edited by TomCruisader - 4/13/17 at 2:43am
post #3558 of 3777
Quote:
Originally Posted by dirtbg View Post

I had same kind of a problem few posts earlier with 144Hz mode with this monitor (https://gfycat.com/ThoughtfulInfiniteAnt), C24FG70 February 17 model.
Flickering line across the screen on the top part, happened only in 144Hz mode and got worse when there were different colors on the top part of the screen.
http://imgur.com/a/hZNd3 <- This wallpaper made the flickering line go crazy for some reason (seen in the gif above), maybe it's the grainy image and color combination.

Maybe it has something to do with those "quantum dots"?
Returned the monitor and got a different one. Guess I have to wait year or two for better VA/IPS monitor suited for 144Hz gaming.


Holy ****, I mean Holy ****!

With these wallpapers the monitor has a macabre flicker. Especially with the one with orange tones. That kind of flicker should be considered illegal xD.

Anyway, I reiterate that the flickering appears after a while and not instantly looking at the wallpaper alone (configured as wallpaper because when viewed with the image viewer or through the browser, no problem).

I see no reason to return the monitor and replace it with a new one. It is almost certainly a problem of model design and that no new version, so far, is error free. I want to stay for the moment in Full-HD and despite the mentioned errors, solved lowering the refresh rate to 120hz, it is still a good replacement in terms of image quality and features for my "old" LG 24GM77-B, which by the way, never gave me a single problem.

As you say, I will also expect a next monitor with excellent performance at a decent price, with a more mature VA / IPS panel, or better yet, an OLED or future μLED panel (dreaming is free).

To conclude, does anyone know if it is possible to perform a firmware update to this monitor? (Without sending it back to Samsung, I mean).

All the best.
Edited by NaSHOP - 4/13/17 at 8:06pm
post #3559 of 3777
Tried it (for about an hour).
Nothing wrong with mine. Other than the fact that I dislike the wallpaper nothing else wrong.
post #3560 of 3777
You would think they would test these things, flickering, purple trails etc. and just not release the monitors until they fixed the problems,
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Monitors and Displays
Overclock.net › Forums › Components › Monitors and Displays › Samsung monitors of 2016 introduced (Curved, High Resolution, Gaming, Flat and Business monitor.), help me understand 125% sRGB and quantum dot