DisplayCAL 3.8.8 released

Changed in this release:

  • [Enhancement] Detect and warn about malformed colorimeter corrections (e.g. from non-official sources). Move them to the trash automatically if they were previously (manually) installed.
  • [Enhancement] Always enumerate instruments on application startup if more than one instrument was detected the last time the application was used (cross-platform consistency).
  • [Enhancement] When prompting for instrument calibration, display the just now detected instrument name instead of the previously enumerated name (the latter might be stale if you forgot to refresh after changing connected instruments).
  • [Enhancement] Use a slightly improved smoothing method when creating high resolution PCS to device tables.
  • [Enhancement] Increase automatic PCS to device table resolution for L*a*b* LUT profiles to 45x45x45 if using smoothing.
  • [Enhancement] [UI] Only auto-close profile/3D LUT installation dialog after a successful installation.
  • [Enhancement] Don’t auto-close madTPG after 3D LUT installation.
  • [Enhancement] macOS: Warn if a black luminance calibration target is set.
  • [Enhancement] Profile loader (Windows): Use a minimally faster method to check for other running applications.

Fixed in this release:

  • [Minor] madVR 3D LUT generation: Always write D65 white to 3D LUT input primaries metadata so madVR does not attempt to correct whitepoint differences on its own when using a custom whitepoint (the 3D LUT itself will map the custom whitepoint correctly).
  • [Minor] madVR 3D LUT installation: Don’t attempt to install 3D LUTs with unsupported input primaries metadata (i.e. not Rec. 709, SMPTE C, EBU/PAL, Rec. 2020 or DCI P3) as madVR will overwrite the metadata depending on the 3D LUT install slot. Such 3D LUTs should only be assigned manually in madVR instead.
  • [Trivial] [UI] When loading settings, always enable the 3D LUT tab if the display is virtual (consistent with display selection behavior).
  • [Trivial] Also apply black point correction when creating a matrix profile without black point compensation (consistency).
  • [Trivial] Do not create swapped matrix fallback tags for XYZ LUT profiles when using the alternate forward profiler and the used ArgyllCMS version is >= 2.1 (be consistent with ArgyllCMS).
  • [Trivial] madVR 3D LUT generation: Accept negative values for input primaries metadata.
  • [Trivial] madVR 3D LUT installation (Linux, macOS): Send the 3D LUT in chunks and increase the timeout to prevent the installation failing over a slow network (e.g. WiFi).
  • [Cosmetic] [UI] Profile loader (Windows): Prevent a stale tray icon remaining (until mouse over) in some rare cases after exiting the profile loader.
  • [Trivial] Profile loader (Windows 7): Skip incomplete display configuration registry entries.

DisplayCAL 3.8.7.1 released

Fixed in this release:

  • [Trivial] [UI] Profile information (Linux): When using wxPython 3.0 instead of 4.0, clicking the sash would throw an error (using wxPython 3.0 is deprecated).
  • [Trivial] macOS: Only automatically re-enable black point compensation if restoring defaults or loading a non-3D-LUT preset.
  • [Trivial] Profile loader (Windows): Work-around two instances of the profile loader being started after powering on the system if fast startup was enabled in Windows power settings.

DisplayCAL 3.8.7 released

Changed in this release:

  • [Enhancement] macOS: Automatically enable not using the video card gamma table to apply calibration during characterization measurements if using limited range (16..235). This should mitigate issues with older graphics chipsets and/or macOS versions that use the wrong output range internally when connected to some monitors that expect to receive limited range signals.
  • [Enhancement] Profile loader (Windows): A scheduled task now restarts the profile loader after resume from standby/hibernation as well as daily at 04:00 AM (whichever comes first), to mitigate the Windows GDI SetDeviceGammaRamp API leaking memory since Windows 10 1903.

Fixed in this release:

  • [Trivial] Don’t automatically disable interactive display adjustment when setting calibration tone curve to “As measured” (unintended behavioral change introduced in DisplayCAL 3.8.6, SVN revision r6194).
  • [Minor] Linux (GNOME on Wayland): Latency incurred by a large measurement window size was not accounted for, introducing the possibility of measurements failing due to loss of synchronization.
  • [Minor] Linux (GNOME on Wayland): Limited range (16..235) support.
  • [Cosmetic] [UI] macOS: Get rid of brief profile installation dialog flicker after installation.

DisplayCAL 3.8.6 released

Changed in this release:

  • [Enhancement] If the graphics drivers or hardware do not support loadable gamma ramps or calibration, show a more descriptive error message.
  • [Enhancement] Increase the timeout for display & instrument detection during application startup from 10 to 20 seconds, to allow for slow opening of legacy serial ports.
  • [Enhancement] Windows 10 1903: Always do instrument detection during application startup if more than one instrument was connected the last time the application was used, as the list of instruments is not guaranteed to be consistent between sessions under 1903.
  • [Enhancement] Profile loader (Windows): Apply smoothing to calibration if the quantization bitdepth is set to 8.
  • [Enhancement] Profile loader (Windows): No longer require running elevated to be able to detect changes in the display configuration under Windows 10 1903.

Fixed in this release:

  • [Minor] Do not attempt to access properties of non-existent objects if a subprocess is not succesfully terminated after reaching a timeout during display & instrument detection at application startup (unexpected failure).
  • [Trivial] [UI] Disable the profile installation button if no displays have been detected.
  • [Trivial] [UI] Disable the measurement report menu item if no instruments have been detected.
  • [Trivial] Profile loader (Windows): Work around Windows 10 1903 handle leaks in Windows Color System APIs.

DisplayCAL 3.8.5 released

This is a bugfix release for 3.8.4.

Changed in this release:

  • [Enhancement] macOS: Use caffeinate to prevent display sleep and screensaver.

Fixed in this release:

  • [Moderate] DisplayCAL 3.8.4 broke video levels (16..235) output encoding/decoding for video card gamma table tags (profiles using calibration with video output levels created by 3.8.4 can be fixed by re-creating via menu “File”, “Create profile from measurement data…” and selecting the existing profile).

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