GIMP - Menus not displaying in Title Bar of GIMP Windows in 15.04

[Roy Gilby]

When GIMP is started, the menu option are not displayed in the title bars of the GIMP Windows. If you point the mouse pointer in the approximate place where the "File" menu option would normally be and click the mouse, that Window's sub-menu appears, but the windows title bar remains blank.

Ubuntu 15.04 64bit
Ubuntu Vivid Vervet (development branch)
Release: 15.04

GIMP 2.8.14

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: gimp 2.8.14-1ubuntu1
ProcVersionSignature: Ubuntu 3.19.0-11.11-generic 3.19.3
Uname: Linux 3.19.0-11-generic x86_64
ApportVersion: 2.17-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Apr 3 18:22:09 2015
InstallationDate: Installed on 2014-09-02 (213 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
SourcePackage: gimp
UpgradeStatus: Upgraded to vivid on 2015-04-02 (0 days ago)

[Roy Gilby (roy-gilbys)]

WORKAROUND IDENTIFIED.

PROBABLE SOURCE OF BUG IDENTIFIED.

Using Unity Tweak, I changed the Theme from "High Contrast" to "Ambience". Missing menus are now visible. Change back to Ambience and bug recurs.

The cause of this bug seems to be related to the "High Contrast" Theme.

This workaround also applies to the related bug #1440274 Thunderbird Menus Not Displaying In Top Menu Bar of Windows