I am now again on Gnome 3.12, Ubuntu 14.10... updated yesterday and experienced exactly the same bug on gnome-tweak-tool. I had an nvidia proprietary driver running (331) and nvidia-prime.. Theme was Adwaita too.
I am now again on Gnome 3.12, Ubuntu 14.10... updated yesterday and experienced exactly the same bug on gnome-tweak-tool.
I had an nvidia proprietary driver running (331) and nvidia-prime.. Theme was Adwaita too.