World first QD-OLED monitor from Dell and Samsung (34 inch Ultrawide 175hz)

Nexus18 said:
Lmao, literally just seen it now, not had my coffee yet :cry:
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Blame the coffee :p

Still, not as bad as mrk saying he can't tell the difference DLDSR makes to Hogwarts though. Tradicionally I would not mind, but this is coming from a guy that prides himself in such things :p:cry:
 
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Sc00p007 said:
The flicker is a manifestation of the near black raise you see in the lagom test. The further the hz is from 175 the more the near black raise.
For example: If you play a game with a steady 60fps, you won't see flicker but your near black will be raised. If you play a game that has bad frame pacing or frame drops, as the fps bounces around the near black will look like it is flickering eg bouncing from 175 to 100 quickly. The near black at 100 is different to 175, and as it happens quickly it will look like flicker to the eye.

This is also why people find 144hz makes it undetectable to their eye. By reducing the framerate you are raising the near black ever so slightly, meaning the range for the bad frame pacing is reduced.
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Although you are close, you are not exactly correct.
LCD/OLED panels do not have constant gamma - so gamma 2.4 in 175Hz is calibrated differently than gamma 2.4 in 60Hz. Gamma settings for each EDID resolution are stored in the controller.
So setting 144Hz does not raise near black at all(thats where you are wrong) - the near black level is the same st 175Hz and 144Hz - the lower perceived flicker is due to the fact that gamma shift from 144Hz to lets say 60Hz(or whatever the framerate dips to) is lower than from 175Hz to 60Hz.
This is the biggest advantage of G-Sync module - it is the only solution(currently, maybe VESA will incorporate that into next DP standard) to be able to control gamma on-the-fly, i.e. maintain constant gamma at each framerate.
Sadly, its not that easy to implement and Alienware still not implemented it properly. There are other gsync monitors that have it implemented(all are lcds, not all have it).
Freesync monitors will always flicker at some situations because in absence of gsync module gamma setting is fixed to the set monitor refresh rate.
 
Jay85 said:
On the DWF model, i still have to turn it back on after a refresh... really annoying :cry:. I checked to see if there was an update for this but nope...
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The funny thing is, I actually use that when I move away from the rig as usually I'm away for a bit longer when I leave the system, so that's actually useful for me.

What I'd like to see, is a firmware update that allows the option to select which outcome it triggers; switch screen back on after the refresh, or leave screen off after the refresh.
 
Meddling-Monk said:
The funny thing is, I actually use that when I move away from the rig as usually I'm away for a bit longer when I leave the system, so that's actually useful for me.

What I'd like to see, is a firmware update that allows the option to select which outcome it triggers; switch screen back on after the refresh, or leave screen off after the refresh.
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I have mine turned on to do a pixel refresh when it goes into standby mode so usually when im away from my desk. However its annoying because when i come back and i woke my monitors up, i have to manually power on the OLED. I wish the OLED would just go back into standby mode after a refresh instead of powering off like the DW new firmware has done.
 
Nexus18 said:
Why is it that there is less/no flickering in the scenarios where we had it before? I noticed that my firmware is 106, supposedly there are 2 different hardware revisions so different firmwares, maybe something here?
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It may still be reduced in real life - this test is quite extreme but I have different monitor that does not flicker at all here.
If you have 106, can you try this?

When I look at my 2 videos, I THINK MOB205 actually flickers a bit less, but I maybe I am just convincing myself
 
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srekal34 said:
It may still be reduced in real life - this test is quite extreme but I have different monitor that does not flicker at all here.
If you have 106, can you try this?

When I look at my 2 videos, I THINK MOB205 actually flickers a bit less, but I maybe I am just convincing myself
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I did try that the other day but missing some files and cba faffing about to get it running :p
 
srekal34 said:
So setting 144Hz does not raise near black at all(thats where you are wrong) - the near black level is the same st 175Hz and 144Hz - the lower perceived flicker is due to the fact that gamma shift from 144Hz to lets say 60Hz(or whatever the framerate dips to) is lower than from 175Hz to 60Hz.
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If there is no near black gamma shift from 175 to 144, how does the perceived gamma shift from 144 to 60 become lower than 175 to 60? Surely it would be the same as in your explanation they are both starting from the same baseline? (you say 175 and 144 are exactly the same near black gamma)
 
Sc00p007 said:
If there is no near black gamma shift from 175 to 144, how does the perceived gamma shift from 144 to 60 become lower than 175 to 60? Surely it would be the same as in your explanation they are both starting from the same baseline? (you say 175 and 144 are exactly the same near black gamma)
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There is a shift from 175Hz to 144Hz - its just so small that our eyes cannot perceive it. But the delta shift from 175 to 60 is higher than from 144 to 60, therefore perceived flicker is lesser on 144.
 
TNA said:
144hz is where it's at for me then. Especially when you look at the input lag improvements and the difference between 175hz.
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Yeah it's not the input lag I care for but the improved motion clarity, obviously need to be hitting 171 fps so not worthwhile in games where this isn't achieved.
 
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Wahey, new monitor number 3 (maybe 4? I lost count...) has arrived - annoyingly you have to swap out at the doorstep now rather than them coming back to get the old one at a later date (although I made the UPS guy wait until I at least confirmed it wasn't DOA).

Have had a proper look now and it looks good, no dead pixels :)

Firmware MOB205 which appears to be the latest, although seems that no longer matters based on the fact we can now do it ourselves :)

The only problem being...

Rawr said:
As far as I'm aware you can't update if you haven't got a Nvidia GPU.
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*booooo* (I'll just have to steal my son's 3050ti when I want to update :p )
 
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