I was so happy when the nouveau driver finally worked on my nvidia maxwell card in fedora 24, but now after about a week, this happened:
https://bugzilla.redhat.com/show_bug.cgi?id=1351286
Total screen freeze :-(.
At least it took as long as a week.
If it happens a lot, I may have to go back to nvidia binaries (I hate the pain of installing them).