[ENHANCEMENT] displayconfig-gtk should allow to change gamma settings

Bug #134673 reported by Matteo Settenvini
4
Affects Status Importance Assigned to Milestone
displayconfig-gtk (Ubuntu)
Won't Fix
Wishlist
Unassigned

Bug Description

displayconfig-gtk should allow to change monitor gamma settings, probably by interfacing with "xgamma". Three sliders, by default linked so they move together like most of The GIMP spinboxes, should enable setting red, green and blue gamma correction.

UI proposal:

Gamma correction:
R [----------|--------------] --+
G [----------|--------------] --8
B [----------|--------------] --+

Where the "8" is a chain like The GIMP ones.
Changes should be live.

Revision history for this message
Sebastian Heinlein (glatzor) wrote :

The problem is the integration into the user interface and not the slider themselves. I am thinking about adding a colours button that opens a sub dialog.

Revision history for this message
Sebastian Heinlein (glatzor) wrote :

by the way the backend already fully supports changeing gamma value. it is a frontend onyl issue.

Bryce Harrington (bryce)
Changed in displayconfig-gtk:
importance: Undecided → Wishlist
status: New → Triaged
Revision history for this message
xtknight (xt-knight) wrote :

I think this would be a great opportunity to include loading of ICM/ICC profiles too with just a small textbox and browse button. You can use the open source "xcalib" software to do this for any display # and screen #.

Revision history for this message
Bryce Harrington (bryce) wrote :

Thank you for reporting this bug and for your efforts to make Ubuntu better. As Xorg has improved this past year, an unfortunate side effect of these improvements is that it has rendered several design assumptions in displayconfig-gtk obsolete. So, starting with Hardy we are no longer putting displayconfig-gtk forth as a primary configuration tool, and are putting our development focus into the Screen Resolution applet. As a result, we do not plan to fix this bug and thus are closing it.

For more background on this change, please see this page: [WWW] https://wiki.ubuntu.com/X/DisplayConfigGtk

For configuring gamma correction, you may want to re-file this against the appropriate GNOME Preferences or Administration applet.

Changed in displayconfig-gtk:
status: Triaged → Won't Fix
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