Public bug reported: The new calibration tool worked had acceptable results on a second laptop running Ubuntu 12.04. However, on my own laptop (attached to an external screen) the profile had a terrible magenta cast. Very pronounced, not the type "your eyes adapt to it".
After investigating and looking closely at the profile, it was clear that the profile used a 6500K white balance (in the properties of the profile in the Ubuntu Colour setting), instead of the 5000K requested in the wizard (it's called "Photography and graphics" there). Furthermore, the wizard offered 3 calibrations options: 4, 10 and 20 minutes depending on the desired accuracy. While I chose 4 minutes for testing purposes, the calibration took a long time (an hour or longer). Also, the advanced output in the calibration window (hidden by default) categorised the screen as CRT while it's a LCD. Because of this, I don't think the problem is tied to the specific firmware (running the latest available) of the hardware, but rather to gnome-color-manager integration with the device and maybe certain configurations. I don't have other calibration devices available to test. The workaround is to just use dispcalGUI to generate the profile. See my blogpost here: http://nxadm.wordpress.com/2012/05/06/screen-calibration- on-ubuntu-12-04-with-spyder2-workaround Thank you for your work and please feel free to contact me. Claudio ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: gnome-color-manager 3.4.0-1 ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14 Uname: Linux 3.2.0-24-generic x86_64 ApportVersion: 2.0.1-0ubuntu7 Architecture: amd64 Date: Sun May 6 13:46:01 2012 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110413) SourcePackage: gnome-color-manager UpgradeStatus: Upgraded to precise on 2012-04-28 (8 days ago) ** Affects: gnome-color-manager (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug precise -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/995450 Title: gnome-color-manager ignore wizard selections: strong magenta cast with Spyder2Express calibration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-color-manager/+bug/995450/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
