[Nouveau] libGL error messages

[積丹尼 Dan Jacobson]

>>>>> "IM" == Ilia Mirkin <imirkin at alum.mit.edu> writes:

IM> OK, well 18.1.0 is completely busted for those GPU's. Either upgrade
IM> or downgrade. But don't use that release.

I did
[DOWNGRADE] libglapi-mesa:amd64 18.1.0-1 -> 18.0.5-1
[DOWNGRADE] libglx-mesa0:amd64 18.1.0-1 -> 18.0.5-1
and rebooted. Problem remains:
$ glxinfo > /dev/null
libGL error: failed to create dri screen
libGL error: failed to load driver: nouveau