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[Bug 1728364] [NEW] gnome-color-manager wrong calibration due to transparent patches

 

Public bug reported:

When performing display color calibration through gnome-color-manager
using hardware colorimeter (pantone huey in my case) odd profile results
are obtained and sometimes the process fails. The problem is probably
due to the test on-screen color patches that are rendered in a full
screen window but have a trasparent layer applied to them instead of
being opaque as expected (see atteched screenshot). This does not appear
to be an argyll problem as the calibration with the same setup can be
performed sussessfully installing and using DisplayCAL app that also
uses argyll. The bug is also present in the X session.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: gnome-color-manager 3.26.0-1
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.1
Architecture: amd64
CurrentDesktop: GNOME
Date: Sun Oct 29 10:52:26 2017
InstallationDate: Installed on 2017-10-26 (2 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-color-manager
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: gnome-color-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug artful wayland-session

** Attachment added: "screenshot of the gnome-color-manager calibration window"
   https://bugs.launchpad.net/bugs/1728364/+attachment/4999341/+files/Schermata%20da%202017-10-29%2010-44-13.png

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https://bugs.launchpad.net/bugs/1728364

Title:
  gnome-color-manager wrong calibration due to transparent patches

Status in gnome-color-manager package in Ubuntu:
  New

Bug description:
  When performing display color calibration through gnome-color-manager
  using hardware colorimeter (pantone huey in my case) odd profile
  results are obtained and sometimes the process fails. The problem is
  probably due to the test on-screen color patches that are rendered in
  a full screen window but have a trasparent layer applied to them
  instead of being opaque as expected (see atteched screenshot). This
  does not appear to be an argyll problem as the calibration with the
  same setup can be performed sussessfully installing and using
  DisplayCAL app that also uses argyll. The bug is also present in the X
  session.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: gnome-color-manager 3.26.0-1
  ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
  Uname: Linux 4.13.0-16-generic x86_64
  ApportVersion: 2.20.7-0ubuntu3.1
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Sun Oct 29 10:52:26 2017
  InstallationDate: Installed on 2017-10-26 (2 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=it_IT.UTF-8
   SHELL=/bin/bash
  SourcePackage: gnome-color-manager
  UpgradeStatus: No upgrade log present (probably fresh install)

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