Menus turns black in Fedora
I have a trouble with Fedora, suddenly the menus turns black and and can't do anything when it happens, or only don't appear, only booting the system it returns to the normal aspect.
I don't know if because I watch videos of YouTube with Firefox 25 in two windows, one normal and the another one private, when the issue appear, but I think it has an explanaiton because this is not a frecuent issue with Fedora.
I think this causes a plasma crash in KDE.
See https://ask.fedoraproject.org/question/29194/parts-of-screen-not-being-drawn/
Post a lspci, looks like you're hitting https://bugzilla.redhat.com/show_bug.cgi?id=961781
Problem still present on Fedora 20 - Gnome