I am (was) running on two different machines both Mate-1.12 and ~Mate-1.14 from Gentoo's portage. With Mate-1.12 -gtk3 the desktops are stable and usable. After switching to Mate-1.12 +gtk3 (Gentoo Stable)things just went wrong.
1. I can't change desktop backgrounds without logging out and then back in.
2. After right clicking a desktop item and selecting an item from the menu, the menus won't disappear and lie there unusable. A second right click pulls up a new menu that will also lie there dead. Dragging any window across these dead menus erases them, but leaves other artifacts on the desktop.
3. Dragging windows across the desktop leaves a dark gray or black image where the windows use to be placed.
Logging out and back in returns the desktop to normal where these problems just start all over again. If I enable the "software composting manager" things settle down a little but it makes the fonts much more difficult to read and doesn't solve the background or right click problem.
Some applications, "Steam Linux Client" mostly open in a huge black window with the Steam Client interface in the upper right corner of the black window and bounces around in an erratic manner. This one is ugly and makes the Steam Client all but unusable. (might be an nvidia-drivers issue but I am unsure of this at the moment).
Moving one of the systems back to Mate-1.12 -gtk3 makes it completely stable and usable again.
I have managed to get the other system to run ~Mate-1.14 +gtk3 performing better, but it still suffers from the background and right click issues and I have to disable the "software composting manager" before it stops leaving artifacts on the desktop when dragging windows.
Has anyone one else experienced these problems and if so how have you solved them.
TIA.....
