I ran into this same issue on a fresh install of Debian, and noticed this in the startup log:
libGL error: Couldn't dlopen libudev.so.1 or libudev.so.0, driver detection may be broken. Remembering "steam" is i386-only, I manually installed "libudev1:i386" and this fixed the problem for me. I would imagine that "libudev0:i386" would probably also work, so I'd think the fix might be to add a Depends entry of "libudev1:i386 | libudev0:i386". ♥, - Tianon -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org