I disabled dithering on Apple silicon + Introducing Stillcolor macOS M1/M2/M3

photon78s was the last time you tested on a different macos version?

DisplaysShouldNotBeTVs IOMFBBrightnessCompensationEnable set seems to be disallowed on Sonoma 14.5. Rats.

Rikl did you make sure framebufferBoolProperty in the BetterDisplayCLI command is "off", not "false"? i thought it didn't work at first because i was typing false but you actually need to type off

photon78s That lead to me briefly research and find a Texas Instruments article on display panel temperature dependent pixel artifacts.

Have you tried messing with temperature compensation as well?

/Applications/BetterDisplay.app/Contents/MacOS/BetterDisplay set -namelike=built -framebufferBoolProperty=off -specifier=IOMFBTemperatureCompensationEnable

It's also on by default, unlike backlight compensation I can't immediately see a difference but I wonder if it will affect that time you see pixel flicker on the test chart

Also, are you also using the while loop script to force disable ambient light sensor contrast enhancenment?

DisplaysShouldNotBeTVs Yep. I was doing this: -framebufferNumericProperty=0x0 should have been this: framebufferBoolProperty=off.

Thank you.

Also, IOMFBContrastEnhancerStrength is always 0 for me. I'll mess with the IOMFBTemperatureCompensationEnable and see!

DisplaysShouldNotBeTVs

Still pixel flickering under the scope with both these scripts. The while loop script is immediately noticeable by naked eye. I let it run and re-test.

photon78s For MBP try with 60 hz. ProMotion has its own flicker issues.

This is still my setup on mbp m1. Didn't mess around with it for weeks. Along with blocked light sensor and 60 hz.

"enableDither": false,
"uniformity2D": false, // true
"overdriveCompCutoff": 0,
"enable2DTemperatureCorrection": false,
"AmbientBrightness": 0,
"DisableTempComp": true,

"IOMFBContrastEnhancerStrength": 0, // important to avoid text glow
"IOMFBTemperatureCompensationEnable": false, // has some effect
"IOMFBBrightnessCompensationEnable": false,
"IOMFBSupports2DBL": false, // no idea what this does

"VUCEnable": false, // true, visible effect, but not sure what, supposedly affects blotching
"enableDarkEnhancer": false, // true

"BLMAHMode": NSNumber(1), // 2 default. 1 seems better
"BLMPowergateEnable": false, // can't see any difference
"enableBLMSloper": false, // true

"enableDBMMode": false, // true on m1 max, not there on touchbar

"DisableDisplayOptimize": NSNumber(1), // 0, not sure if stable
"IdleCachingMethod": NSNumber(1), // 2, disables a flag that switches back and forth on activity. prevents colored cursor from switching color profile upon software/hardware cursor.

"APTEnableDefaultGray" : false, // no idea what it does
"APTEnablePRC": false,
"APTEnableCA": false,
"APTEnableCDFD" : false,
"APTPDCEnable": false,

"CMDegammaMethod": 0, // 1, sends colors directly or something, glowing

"APTFixedRR" : NSNumber(0),
"APTLimitRefreshRate" : false,

photon78s that's correct, only the mini-led ones have ProMotion. the m2 tb is only 60hz

photon78s Blocking the ambient light sensor should help though.

DisplaysShouldNotBeTVs

@aiaf is it maybe an idea to add an option to StillColor to disable IOMFBContrastEnhancerStrength ?

It looks like IOMFBContrastEnhancerStrength is also messing with the screen

Rikl

So far none of these options seem to remove the pixel flicker under the microscope. I don't use this laptop as my daily driver so it is not urgent but strange to see this change in panel behavior.

DisplaysShouldNotBeTVs

Yes, that's one. I would not say 100% not usable thought I've had more eyestrain lately but out of precaution I will not try finding out even more.

async

Thanks so much for all your work.

Tired to copy and paste this into terminal to try, am I missing something? Thanks in advance (On MBA M2)