Macintosh
Built-In Displays (iMac / Macbook)
- Adjusting Brightness
Adjusting Brightness is generally accomplished on the keyboard with the big and small brightness icons located above the numbers row.
Brightness can also be adjusted in the Display settings found in Apple Menu / System Preferences / Displays / Display Tab.
2. Automatic Brightness
Most iMacs or Macooks have an ambient light sensor built into the screen that has the ability to communicate with the OS and adjust brightness on the fly. However, we do not want the brightness level changing during the calibration process, so this should be disabled prior to calibration with TruHu.
The box to be unchecked is found in Apple Menu / System Preferences / Displays / Display Tab.
3. True Tone
True Tone works in conjunction with Apple’s high-end displays. It is intended to adapt / shift the display’s white point / color temperature to put less strain on the eye. This should be disabled, as it interferes with TruHu’s calibration.
Example: MacBook Air running MacOS Monterey (12.6)
4. NightShift
This causes a shift to yellowish white at night and to a blue-ish white during the day and is disabled by default. Nightshift interferes with TruHu’s ability to set color temperature, so we recommend keeping Nightshift disabled. in Apple Menu / System Preferences / Displays / Night Shift
Display System Preference / Night Shift Tab make sure the Schedule is set to “Off”.
External Displays (same for Mac and Win)
Adjusting the brightness requires getting familiar with the display’s On Screen Display (OSD) menu. The controls are usually found in the lower right edge of the screen’s frame. We’ll provide an example from one popular manufacturer – a Dell S2719HN.
OSD controls are usually found in the lower right corner of the screen on the bezel. In this example, button 3 brings up the OSD menu.
This screenshot from the Users Manual provides good instructions on how to make OSD adjustments. Brightness/Contrast is typically the first control to come up when you enter the OSD menu. It is not recommended to adjust contrast on LCDs, so you’ll only want to adjust brightness (highlighted in red) as directed by TruHu.
Windows
With your Windows computer, you are likely to encounter one of two situations. Either you are using a built-in display, as is the case with a laptop, or you could be using an external display.
Built-In Displays
- Adjusting Brightness
Adjusting Brightness is generally accomplished on the keyboard with the big and small brightness icons located above the numbers row.
Brightness can also be adjusted in the Display settings found in Settings / System / Display.
2. Automatic Brightness
Some laptops come with the ability to adapt the brightness to ambient lighting conditions. This feature appears to be disabled by default. We do not want the brightness level changing during the calibration process, so this should be disabled prior to calibration with TruHu. If you have a pretty constant lighting environment, then it would be best to keep this disabled. If you intend to do color critical viewing under a variety of ambient light conditions, then you may want to enable after calibration.
This feature is found in Settings / System / Display.
3. Night Light
When available, this is disabled by default. Enable Night Light interferes with TruHu’s ability to set color temperature, so we recommend keeping Night Light Off.
