6.1.1

PWM flicker minimization

By combining hardware and software dimming at specific thresholds, Lunar can help people sensitive to PWM flickering.

The below video shows how you can use the Halide iOS app to find the lowest brightness where flickering starts to appear.

<video playsinline controls> <source src="https://files.lunar.fyi/lunar-pwm-flickering-h265.mp4" type="video/mp4; codecs=hvc1"> <source src="https://files.lunar.fyi/lunar-pwm-flickering-h264.mp4" type="video/mp4"> </video>

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How to use it

For 2021 Apple Silicon MacBooks, adjust the Min Brightness to 38 in Display Settings to get advantage of this.

Lunar will then use Sub-zero Dimming below that value, which keeps the LED voltage steady while blocking light using the LCD.

For external monitors and other screens, play with the Min Brightness setting until you find the threshold under which PWM flicker becomes noticeable.

Then set the minimum brightness to the lowest value that doesn't cause flicker.

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Improvements

• Added sidecar option to lunar toggle-connection CLI command

Fixes

• Fix Sub-zero Dimming being overridden by the system adaptive brightness
• Fix contrast jumping from max to min when going to/from Sub-zero Dimming
• Fix flashes and sudden transitions when going in and out of Sub-zero Dimming