Category Archives: General

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).

DisplayCAL 3.8.1 released

Added in this release:

  • [Feature] Linux: Preliminary experimental Wayland support under GNOME 3 using colord (requires ArgyllCMS 2.1 or newer as well). Caveats do apply:

    • Window placement and ordering is completely up to the compositor under Wayland. There is generally no way for an application to place its own windows at specific relative locations or z-orders. As a result of this, the measurement window cannot stay always on top or be automatically centered. Extra care needs to be taken that other windows are not placed on top.
    • Video card gamma table (videoLUT) access is handled by colord. Some functions like viewing current videoLUT contents may not be available.
    • The measurement window color depth is limited to 8 bits per channel per pixel (but dithering is used to achieve a higher effective color depth).
    • The measurement window may be subject to desktop-wide color management in upcoming versions of Wayland (although the display device is inhibited during measurements via the org.freedesktop.ColorManager.Device D-Bus API which should prevent this, and as a fallback a linear calibration sRGB profile is temporarily installed during measurements if the D-BUs API is unavailable, which should result in an identity transform, i.e. effectively no color management, as well as linear video card gamma tables).
    • Application support for color management under Wayland via colord still seems to lacking (although the list may well be out-of-date).
    • Only tested under GNOME 3 (Fedora 30, Ubuntu 19.04). Support for other desktop environments will need to be implemented separately until Wayland gains a color management and calibration/profiling protocol.
  • [Feature] LG OLED 3D LUT format.

Changed in this release:

  • [Enhancement] If the currently used ArgyllCMS version is not a standard version, but also not a beta, do not offer to switch to an installed official stable version if it’s otherwise the same version number.
  • [Enhancement] Include Quantum Dot LED (Samsung QLED Q9F) spectral sample colorimeter correction when importing for i1 Display Pro and ColorMunki Display (sourced from community colorimeter corrections database).
  • [UI] Linux (Debian, Fedora, Ubuntu): Use wxPython Phoenix if installed.
  • Prisma, Resolve: Set pattern generator background color to pattern color if using fullscreen patterns.

Fixed in this release:

  • [Moderate] UnicodeDecodeError when a CCSS file contains unicode characters in the display device description (regression of a change in DisplayCAL 3.8 to use localized technology descriptions, SVN revision r5810).
  • [Minor] APL calculation for Prisma and Resolve pattern generators was off by a few percent depending on pattern area and current pattern color.
  • [Minor] Quick reporting on calibrated or uncalibrated display did not try to detect output levels if set to “Auto”.
  • [Trivial] More gracefully deal with faulty tags in ICC profiles (fixes ICC profile information unhandled exception for colord-created profiles with malformed targ tags).
  • [Trivial] [UI] Correctly update the audio button state on progress dialogs when changed on a previous window.
  • [Cosmetic] [UI] Various minor potential rendering glitches.
  • [Cosmetic] [UI] macOS (standalone application bundle): Splash screen did not animate.
  • [Cosmetic] [UI] Linux: Add work-arounds for various Wayland-related wxPython rendering quirks and bugs (e.g. spacing around windows, popup menu placement).
  • [Trivial] Linux: Try to work around sporadic colord profile installation quirks (“The profile was not added in time”).

Enjoy!

DisplayCAL 3.8 released

Added in this release:

  • [Feature] SpyderX support (requires ArgyllCMS 2.1.0 or newer, use ArgyllCMS 2.1.1 to be able to skip instrument self-calibration).
  • [Feature] Colorimeter correction information with graph.
  • [Feature] Synthetic ICC profile creator: Drag & drop support for TI3 measurement files.
  • [Enhancement] Rudimentary support for hypothetical future instruments and their measurement modes (any new instrument support added to ArgyllCMS in the future should be fully usable in DisplayCAL right away without needing an update for instrument-specific measurement modes).
  • [Enhancement] Prefer colorimeter corrections from “ArgyllCMS” folder and ignore duplicate (spectral) colorimeter corrections from “color” folder (e.g. installed by HCFR under Windows).
  • [Enhancement] Display technology information to aid in the choice of a suitable measurement mode or correction.
  • [Enhancement] Default to high-resolution spectrum mode (if available) for spectrometers that support it.
  • [Enhancement] Include some additional spectral sample colorimeter corrections when importing for i1 Display Pro and ColorMunki Display (e.g. MacBook Pro 2016 Retina with PFS Phosphor WLED “P3” display, LG OLED 6-series WOLED based on samples from LG C6 and E6 OLED TVs, sourced and combined from community colorimeter corrections database contributions).
  • [Enhancement] macOS: Automatically warn about incompatibilities of Apple software with calibration black point hue correction and profile types other than single curve + matrix with black point compensation.

Changed in this release:

  • [UI] Updated simplified chinese localization (thanks to Mars).
  • [UI] Updated french localization (thanks to Jean-Luc Coulon).
  • [Enhancement] Implicitly try to skip repeat instrument self-calibration for colorimeters that want it if already done at least once per measurement run.
  • [Enhancement] Converted translation file format from JSON to YAML for better readability.
  • [Enhancement] Use a localized description for known quality spectral sample colorimeter corrections.
  • Use an application-specific download directory for updates and supporting files.

Fixed in this release:

  • [Minor] Not all programmed measurement modes were enumerated for the K10-A colorimeter (regression of a change in DisplayCAL 3.7, SVN revision r5557).
  • [Minor] ColorHug/ColorHug2 “auto” measurement mode was not working anymore.
  • [Trivial] Curve viewer: Re-introduced being able to view the current contents of the video card gamma table if no display profile is set or the profile used does not contain calibration.
  • [Cosmetic] Curve viewer, profile information: Curve graphing identical channel detection was not working properly in some cases (only affected synthetic curves).

Enjoy!

DisplayCAL 3.7.2 released

Phasing out 0install support. While the 0install version of DisplayCAL, which was originally introduced as a replacement for the long-defunct Autopackage system under Linux, has had its uses, the low distribution (around 6%) of 0install versus the standalone version does no longer warrant the additional time and work needed to maintain this separate deployment path. 0install support will thus be phased out with this version, which is only available as “standalone” installation. Windows and macOS users will be updated automatically to the standalone version. Linux users should switch to a standalone package at their earliest convenience.
There will be a transition period of a few months during which old 0install versions will continue to run, but after which the respective online infrastructure will be decommissioned.

Added in this release:

  • [UI] Russian and ukrainian localization (thanks to Alex Sikorsky).

Changed in this release:

  • [Enhancement] Apply black point correction/compensation to measurement data directly instead of device-to-PCS table (improves smoothness of profiles for displays with not very neutral black).
  • [Enhancement] Optimize single gamma curve without offset to single gamma value.
  • [Enhancement] Network: Get rid of gethostbyname usage because it can have a long delay.
  • [UI] Updated traditional chinese localization (thanks to 楊添明).

Fixed in this release:

  • [Minor] Fallback TRC tags were created using a wrong backward matrix when using ArgyllCMS 2.0.2b or newer.
  • [Trivial] When connecting to a pattern generator, closing the connection dialog should be equivalent to cancelling.
  • [Cosmetic] [UI] Show a dialog while the UI is blocked when connecting to madTPG.
  • [Cosmetic] [UI] Do not show the visual whitepoint editor fullscreen warning if using a pattern generator.
  • [Cosmetic] [UI] Synthetic ICC creator: Set chromatic adaptation up/down arrow increment to 0.0001.
  • [Cosmetic] [UI] Synthetic ICC creator: Hide (unused) hue & saturation controls for SMPTE 2084 hard clip.