We currently have 263 tests failing with stderr output. A huge number of them are printing: failed to create drawable The commonality between these tests is that I suspect they all involve accelerated compositing mode: they are animations tests, compositing tests, media tests, etc. The error message is coming from mesa, either dri_common.c or glx_pbuffer.c.
(In reply to Michael Catanzaro from comment #0) > We currently have 263 tests failing with stderr output. We are down to 200! Most are this bug.
Seems to have fixed itself somehow.