Display Dimmer
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Release history

What’s new in
Display Dimmer

New features, thoughtful improvements, and reliability fixes in every release.

View 2.2.11 on GitHub

Display Dimmer release history

2.2.11

Latest
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This update gives you clearer automation control and more accurate multi-monitor feedback.

New

  • See when a manual adjustment has paused a schedule or app rule, and resume automation from the main window. The next automation session can still take over normally.

Improved

  • All Displays and linked groups now show “Mixed” when brightness or contrast differs, with sliders positioned near the average.
  • Local automation can now resume an interrupted schedule or app rule after a temporary brightness change (Pro, API 1.2).
  • Improved main window placement around top and side taskbars.
  • Refreshed Settings themes.
  • More reliable hotkeys.

2.2.10

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Temperature automation, protection for unsaved settings, and more responsive sliders.

New

  • Adjust color temperature from scripts using the CLI and local API, including Kelvin input (Pro).
  • Closing Settings with unsaved changes now prompts you to apply them, keep editing, or discard them.

Improved

  • More responsive sliders with clearer feedback and more reliable click-and-drag behavior.

2.2.9

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Better blue light filter compatibility and more responsive display controls.

Improved

  • Broader graphics-driver compatibility for blue light filtering and warmer screen colors.
  • More responsive brightness, contrast, and temperature sliders on systems with stricter software color controls.
  • Improved color temperature behavior at low brightness and across the contrast range.

2.2.8

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Blue light filtering, per-display color temperature, and browser purchases for Pro.

New

  • Adjustable blue light filtering and per-display color temperature, with approximate Kelvin readouts and a neutral setting (Pro).
  • Schedules, app rules, and hotkeys can now adjust color temperature as well as brightness.
  • Free users can try the blue light filter and color temperature controls for 30 minutes each day; Pro removes the daily limit.
  • Contrast and temperature sliders can now be hidden from the main window.
  • Pro can now be purchased in your browser and restored with the license key from your receipt.

Display Dimmer Pro remains a one-time purchase—no subscription required.

Improved

  • Refined contrast adjustment.
  • Fewer unnecessary low-brightness warnings.
  • Improved opening from the system tray.

Fixed

  • Fixed brightness jumps caused by software dimming on some displays.

2.2.7

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Deeper software dimming, a redesigned Pro overview, and more reliable display recovery.

New

  • Added a brightness safety prompt with automatic revert when hardware and software dimming combine to make a display extremely dark.

Improved

  • Redesigned the Pro tab with an overview for Pro users, showing display brightness, automation status, and quick access to Pro features.
  • Software (gamma) dimming can reach lower brightness levels while keeping colors as accurate as possible.
  • Improved display identification and brightness recovery after reconnecting a monitor or TV.

Fixed

  • Fixed software dimming getting stuck after waking from sleep when using duplicated displays.

2.2.6

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An optional auto-hide setting for the main window and more reliable brightness recovery.

New

  • Added an option to automatically hide Display Dimmer to the system tray when you switch away from it.

Improved

  • Improved brightness restoration after an unexpected shutdown.
  • Improved delivery of Gamma Guard hints.
  • Clearer explanations for disabled brightness controls.

2.2.5

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Improved

  • Improved Gamma Guard monitoring efficiency while keeping protection responsive for schedules and app rules.

2.2.4

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Improved

  • Improved compatibility and stability with a wider range of Windows graphics drivers.

2.2.3

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Script your display settings with local automation and command-line control.

New

  • Control brightness and contrast from scripts through the running Display Dimmer app, using the command line (Pro).
  • Optional JSON output and live state watching for local integrations, including PowerShell, AutoHotkey, Task Scheduler, Stream Deck, and Arduino.
  • More hotkey actions for display control.
  • Added a hint when Windows or another app appears to reset screen brightness.

Improved

  • Better handling for monitor reconnects, display changes, and DDC/CI fallback.
  • More reliable Settings refreshes when displays or DDC/CI status change.

Fixed

  • Reliability fixes for linked display groups, schedules, app rules, and hotkeys.

2.2.2

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Improved

  • Refined Settings hints so they appear at more appropriate times.
  • Polished drag reordering for displays, schedules, hotkeys, and app rules.

2.2.1

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Improved

  • Clearer fallback behavior when DDC/CI is unavailable or a monitor is slow to respond.

Fixed

  • Stability fixes for monitor reconnects, HDR and other display changes, and DDC/CI fallback.

2.2.0

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Customizable hotkeys, linked display groups, and a redesigned Settings window, with more reliable monitor control.

New

  • Customizable global hotkeys for brightness, contrast, reset, display enable or disable, and automation.
  • Default global brightness hotkeys: Ctrl + Alt + Page Up to brighten and Ctrl + Alt + Page Down to dim.
  • Hotkey targeting for individual displays, All Displays, and linked groups.
  • Physical brightness-key support on compatible keyboards and devices.
  • A redesigned, resizable Settings window with side navigation and remembered size.
  • Linked display groups across the main controls, schedules, app rules, and hotkeys.

Improved

  • More reliable hardware brightness control during startup, sleep and resume, HDR changes, and monitor reconnects.
  • Better software fallback, retries, and automatic disabling of hardware control when DDC/CI is unreliable.
  • Safer monitor matching after reconnects or port changes. Saved hardware-control preferences are not restored when the match is uncertain.
  • Clearer explanations when DDC/CI hardware control is disabled.
  • Clearer schedule and app-rule status, with more reliable restoration when automation is interrupted, disabled, or handed off between rules.

Fixed

  • Fixed startup recovery that could reset software dimming applied by schedules or app rules.
  • Fixed validation of non-.exe files selected when browsing for an app rule.

2.1.25

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Fullscreen-aware app rules, more flexible All Displays controls, and stronger display recovery.

New

  • Fullscreen-aware app rules, with a Pro option to target only the display running the fullscreen app.
  • Relative and absolute All Displays brightness modes: preserve per-display differences or set every display to the same level.
  • Recovery from startup rendering crashes using a software-rendering fallback.

Improved

  • More consistent All Displays sliders at 0%, 100%, and across mixed-monitor setups.
  • Clearer schedule and app-rule status, with more reliable saving of the selected display scope.
  • More reliable Apply and resume behavior, including restoring brightness after automation is interrupted.
  • More stable software (gamma) fallback at low brightness, high contrast, and on displays controlled by automation.
  • More stable DDC/CI control with fewer repeated monitor brightness writes.
  • More reliable saving of manual contrast changes made with the mouse or keyboard.

Fixed

  • Fixed a rare crash when opening links in About.

2.1.24

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Improved

  • Update prompts can be deferred and shown more reliably from the main window.
  • Clearer Pro purchase and theme messaging.

2.1.23

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Improved

  • More responsive Settings and smoother scrolling.
  • More reliable Apply behavior and status updates for schedules and app rules.
  • More reliable update notifications.

Fixed

  • Fixed Start in tray being ignored when launching with Windows.
  • Fixed a brightness scheduling issue after changing display order.

2.1.22

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Improved

  • More reliable update notifications.

Fixed

  • Fixed a rare startup stability issue.
View older changes on GitHub Version 2.1.21 and earlier
Latest release

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