Created attachment 117168 [details] How it looks like currently With VCL_DOUBLEBUFFERING_FORCE_ENABLE=1, there is a 2px height white line between the menu and the toolbar with some themes (e.g. oxygen-gtk, which is the default on openSUSE/KDE).
Miklos Vajna committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=12d1a2a08a8056df2c14ad3e75b309847989bc23 tdf#92670 GtkSalGraphics::NWPaintGTKMenubar: fix modified clip rectangle It will be available in 5.1.0. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Miklos Vajna committed a patch related to this issue. It has been pushed to "libreoffice-5-0": http://cgit.freedesktop.org/libreoffice/core/commit/?id=7609867f60edb5eaf785ce44386e8ed28ab9e01c&h=libreoffice-5-0 tdf#92670 GtkSalGraphics::NWPaintGTKMenubar: fix modified clip rectangle It will be available in 5.0.1. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.