Since Sep 8th, clutter input events no longer work on an intel x4500 graphics card running git kernel/mesa/intel driver/drm. Input events work for the first couple hundred milliseconds of a program run, after that however they fail. Reverting to mesa from Sep 6th fixes the issue.
Can you identify the exact regression commit?
I had the same problem, and it got solved with this commit I think. I experienced the problem with Gnome-Shell. 76e836a41ad47237f80195c5dacb8bc57a7f2b69 'i965: do a flush in clear, fix openarena render issue, fd.o bug# 23857'
Confirmed
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