https://bugs.freedesktop.org/show_bug.cgi?id=92301
--- Comment #5 from Michel Dänzer michel@daenzer.net --- (In reply to MC Return from comment #4)
How can I find out if my 32-bit Mesa binaries are up to date ?
It sounds like you only built 64-bit binaries of Mesa yourself, so you're probably still using the 32-bit binaries from Ubuntu. What does
apt-cache policy libgl1-mesa-dri:i386
say?