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I did some further testing, this morning.
First thing I did was to zap the active CAL, go back to linear.
On Black, RGB=000, this time I got 0.17 Cd/m2 which is incredibly “low” (if I have to believe my MYIRO-1.
BTW, I did not get the impression that the spectrum was all that “noisy”? See attached screenshot.On White, RGB=255,255,255, I got 84 Cd/m2.
All in all, that gets me a Contrast Ratio of 84:0.17 = 494:1.
I’m sure that is plenty and how is anyone “suppose” to “perceive” color in Black?
It is for printing right? I do have faith in the hardware now. I see 0 0 0 is 8 13 26 . You are supposed to see rgb 16,0,0 as red. Below 16 is not much content. Some movies have rgb 1,1,5 and 1,1,9 in a strip. I think we are supposed to see the gradiation as black almost. We not suppose to percieve color in black. Displaycal will set the color to be percieved as percieved. Black point correction is a taste. More contrast is better visually but ink does not have high contrast on some printers.
Which settings? If you cannot get over 500:1 at native white & near to factory settings for brightness/contrast… something is still off spec by a huge margin, be it display itseft or gpu configuration.
BTW, don’t you think that black SPD looks like a grey? With some amount of green channel. It may be wled blue “second spectral peak” too. If you measure rgb 0 0 255 with the myro1 you can get a hint about this, if this is actual blue channel behavior or if you are getting 16 16 16 when os draws 0 0 0.
Here are my current setings :
Bright 75 Cont 50
See attached screenshot for RGB Gains.I agree the Black point looks awfully blue.
It’s possible my monitor is defective, after all.
GPU config is “Full” — not 16-255.
I can tell that much, Vincent.But gains are not native. I’ll quote myself again:
If you cannot get over 500:1 at native white & near to factory settings for brightness/contrast… something is still off spec by a huge margin, be it display itseft or gpu configuration.
The issue (***if it exists on your system***) with HDMI video levels is thet even if you configure ot properly on control panel, it may keep video levels under the hood. An easy test is to plug it through a non HDMI input or use a known source you can trust like a PGenerator or something like that.
If it keeps showing the same contrast at native white & factory OSD brightnes & contrast… seems an issue with display itself. Bad luck, but good info to future customers thanks to your threads here about that.Reset video drivers to defaults is a suggestion. Nvidia color settings reference mode should be off but on is good for native testing and turn the video card gamma ramp to linear and it does more to turn off extra processing not needed in reference mode. Reference mode is better for hardware calibration and not DisplayCAL. Programs still load the color calibration but the gamma is native.
BTW, I did not get the impression that the spectrum was all that “noisy”? See attached screenshot.
The green subpixel’s spectrum is noisy. The red one is beyond recognition.
Can you tell me how to “reset video drivers” : “Restore defaults”? Done that. No change.
Where do you find “Reference mode” in NVIDIA interface?
See attached.Vincent,
Can you please explain “But gains are not native”?
Other than 255 / 100% Red, 255 / 100% Green, 255 / 100% Blue?I have already shown what resetting the Gains to the original factory settings do.
You agree this monitor will not do D50 without changing the Gains.Vincent,
Can you please explain “But gains are not native”?
Other than 255 / 100% Red, 255 / 100% Green, 255 / 100% Blue?Not RGB 100% in that screenshot, maybe you attached wrong picture
My monitor is connected through DisplayPort adapter — not HDMI.
if you attached wrong picture, so you got <500:1 through DP at RGB gains 100% and default bightnest & contrast… something looks very wrong with that display, adverstised as 1000:1 typical static CR.
Time to call Dell fro return policies.2nd time posting so I will be brief. I hit submit post and it said to log in so i lost my post.
Your screen attachment is for the video player settings. The top right has the reset video options in the control panel. Default is not to use nvidia settings and that is good for color managed video players and apps perhaps.
The display settings is where you need to look for reference mode. Display on the left and then go to adjust desktop color settings. Desktop size and position is good for at no scaleing for video work since no video card will be doing scaleing and converting the signal. It saves video power to.
I empathize for losing your first draft… Darn.
FWIW, I never use “Video player settings”. I had to click the radio button to select it in order to access the “Restore defaults” option.
Attached is a new screenshot. I never touch “Reference mode”.
Accurate mode is not letting you get the bare metal of the display. It has a color transform in it or a gamma curve. This could raise your white point so lowers contrast. It also means it has a Microsoft hardware calibration in there. Are you windows 11? If you reset it goes to enhanced mode. The display section controls system wide color. Just to test the screen you should run it with it on. If you tested it already then I forgot sorry.
Odd you could not click it to restore defaults. Make sure you hit apply at the bottom right.
