Display Dimmer 2.2.9

v2.2.9 (September 3, 2026)

Display Dimmer 2.2.9 improves screen temperature compatibility and keeps display controls responsive on more Windows systems.

Improved

• Improved support for strong warmth settings across more graphics drivers.
• Improved brightness, contrast, and temperature slider responsiveness on systems with stricter software color controls.
• Improved temperature behavior at low brightness and across the contrast range.

Display Dimmer 2.2.8

v2.2.8 (September 2, 2026)

Display Dimmer 2.2.8 adds Pro screen-temperature controls, with approximate Kelvin readouts and a neutral setting for each display.

New

• Schedules, app rules, and hotkeys can now adjust temperature as well as brightness.
• Free users can try temperature control for 30 minutes before upgrading.
• 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.

Improved

• Fixed a software dimming issue that could cause brightness to jump on some displays.
• Refined contrast, reduced unnecessary low-brightness warnings, improved tray opening, and polished Settings.

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

Display Dimmer 2.2.7

v2.2.7 (August 28, 2026)

This update improves gamma brightness, the Pro experience, and reliability when displays change.

Improved

• Redesigned the Pro tab with a new overview for Pro users, including display brightness, automation status, and quick access to Pro features.
• Improved gamma brightness so it can dim displays further while keeping colors as accurate as possible.
• Added a brightness safety prompt with automatic revert when hardware and software dimming combine to make a display extremely dark.
• Fixed gamma brightness getting stuck after waking from sleep when using duplicated displays.
• Improved display identification and brightness recovery after reconnecting a monitor or TV.

Display Dimmer 2.2.6

v2.2.6 (August 19, 2026)

This update adds a requested tray behavior option and includes focused reliability and usability improvements.

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 Gamma Guard hint delivery and made disabled brightness controls easier to understand.

Display Dimmer 2.2.5

v2.2.5 (July 27, 2026)

This is a focused efficiency and stability update.

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

Display Dimmer 2.2.4

v2.2.4 (July 20, 2026)

This update focuses on graphics compatibility and Settings reliability.

• Improved compatibility and stability with a wider range of Windows graphics drivers.
• Refined Settings window lifecycle handling.

Display Dimmer 2.2.3

v2.2.3 (June 29, 2026)

This update focuses on local automation, Settings polish, and reliability improvements.

New

• Local automation and command-line support for Display Dimmer Pro.
• Control display brightness and contrast from scripts through the running Display Dimmer app.
• Optional JSON output and state watching for PowerShell, AutoHotkey, Task Scheduler, Stream Deck, Arduino, and other local automation workflows.
• More hotkey actions for display control.

Improved

• Better handling for monitor reconnects, display changes, and DDC/CI fallback.
• Improved Settings refresh behavior around display changes and DDC/CI state changes.
• Added a hint when Windows or another app appears to reset screen brightness.
• Reliability fixes for linked display groups, schedules, app rules, and hotkeys.

Display Dimmer 2.2.2

v2.2.2 (May 25, 2026)

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

Display Dimmer 2.2.1

v2.2.1 (May 23, 2026)

• Stability fixes for monitor reconnects, HDR/display changes, and DDC/CI fallback.
• Clearer fallback behavior when DDC/CI is unavailable or a monitor is slow to respond.

Display Dimmer 2.2.0

v2.2.0 (May 19, 2026)

Display Dimmer 2.2 is a major hotkey and reliability update. It adds
customizable global hotkeys, support for physical brightness keys, a redesigned,
resizable Settings window, improved monitor-control reliability, and linked
display groups for larger multi-monitor setups.

New

• Added a global hotkey editor for brightness, contrast, reset levels, display
  enable/disable, and automation actions.
• Added default global brightness hotkeys:
  • Ctrl + Alt + Page Up for brightness up.
  • Ctrl + Alt + Page Down for brightness down.
• Added hotkey targeting for individual displays, All Displays, and linked
  display groups.
• Added support for physical brightness keys on compatible keyboards and devices.
• Added a redesigned, resizable Settings window with side navigation and
  remembered window size.
• Added linked display groups for larger multi-monitor setups, with support in
  the main controls, schedules, app rules, and hotkeys.
• Added guide links for DDC/CI, schedules, app rules, and hotkeys.
• Added a What's New popup in About.

Improved

• Updated Display Dimmer to .NET 8 for a more modern Windows build.
• Improved hardware brightness reliability across startup, sleep/resume, HDR
  changes, reconnects, and display changes.
• Improved software fallback, retry, and auto-disable behavior when DDC/CI
  hardware control is unavailable or unreliable.
• Improved DDC/CI disabled notifications with clearer explanations.
• Improved display matching and recovery when monitors are reconnected or moved
  to another port, without restoring hardware-control preferences when the match
  is uncertain.
• Improved Settings organization and control layout for multi-monitor and
  automation-heavy setups.
• Improved schedule and app-rule status text and restore behavior when
  automation is interrupted, disabled, or handed off between rules.
• Improved startup behavior after an unclean shutdown or crash so active
  automation can reapply software dimming when needed.
• Improved shutdown and exit cleanup behavior for hardware-controlled and
  software-dimmed displays.

Fixed

• Fixed a startup recovery case where automation-owned software dimming could be
  reset.
• Fixed app-rule browse validation so selecting a non-.exe file behaves like
  drag-and-drop validation.
• Fixed rating prompt behavior so a shown prompt is marked as seen immediately
  and is cleaned up when Display Dimmer exits.