Category Archives: General

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).

DisplayCAL 3.8.4 released

This is a maintenance release.

Changed in this release:

  • [Enhancement] Do early detection of highly non-monotonic luminance responses when doing on-the-fly generation of the preconditioning profile for auto-optimized testcharts with 425 or more patches.
  • [Enhancement] Always create a single shaper curve for the fallback matrix tags of cLUT profiles with nonlinear calibration.
  • [Enhancement] Profile loader (Windows): Only try to restore profile associations on exit if they had to be fixed on launch to begin with.

Fixed in this release:

  • [Minor] Work-around Argyll applycal bug with gamma value TRC curve tags in profiles (fixes generating HDR 3D LUTs from display profiles with such tags).
  • [Trivial] [UI] Windows with display scaling above 100% (HiDPI): Prevent occasional text cutoff/wrapping issues on dialog messages by adding one pixel to the minimum width of the message text area (wxWidgets bug).

DisplayCAL 3.8.3 released

This is a maintenance release.

Changed in this release:

  • Profile loader (Windows): Work around Windows 10 1903 (May 2019 update) severe banding bug and automatically disable Microsoft Windows Color System Calibration Loader task. Logging out and back in is required, and may be required each time a display’s default associated profile is changed.

Fixed in this release:

  • [Minor] Verification: Prevent unintended mixing of unicode and binary strings when a device link profile is used.
  • [Cosmetic] [UI] Linux (KDE): Centering the measurement window would increase its size slightly and resetting its size would move the window down and right (regression of SVN revision r6137).

DisplayCAL 3.8.2 released

This is a maintenance release.

Changed in this release:

  • [Enhancement] Always try to skip initial colorimeter calibration for uniformity measurements (e.g. SpyderX).
  • [Enhancement] Linux: Use GObject Introspection for DBus access (if available).
  • [Enhancement] Linux: Use a default timeout of 500 ms for DBus calls.
  • [Enhancement] Profile loader (Windows): If registry access to the display configuration fails (e.g. due to running non-elevated), log a warning only once.
  • Windows: Only log Windows exceptions that are actually errors.

Fixed in this release:

  • [Minor] If invoked from the main application’s “Tools” menu, the synthetic ICC profile creator HDR configuration could affect the main application’s 3D LUT HDR configuration.
  • [Minor] Successive requested instrument calibration during uniformity measurements did not wait for the calibration to complete before continuing (e.g. SpyderX).
  • [Trivial] Prevent potential blocking of socket binding if a previous instance exited unexpectedly.
  • [Trivial] [UI] Change parent inheritance for pathdialog wrappers so interacting with the parent is appropriately prevented when the wrapper dialog is shown via a scripting request.
  • [Trivial] [UI] Linux: Always prefer the global DPI value (Xft.dpi) for HiDPI scaling with wxGTK2.
  • [Trivial] [UI] Windows: Work-around wxPython Phoenix bug: Destroying a frame loaded from XRC affects subsequently loaded XRC resources (leading to instantiated controls being of the wrong type and failing initialization due to not having the expected interfaces).