Public bug reported:
For background, see
Mozilla's CI system for Firefox runs tests against Docker images. These
Docker images are periodically rebuilt against the latest available
When the python-imaging 1.1.7-4ubuntu0.12.04.2 package update rolled out
a few days ago, some Firefox tests started failing.
Upon further examination, it looks like the python-imaging package
update somehow resulted in window decorations (title, close, minimize,
maximize buttons) failing to render and/or shifting up off the screen by
several pixels. Screenshots are available at
As best I can tell, change of behavior in python-imaging somehow
resulted in some other process using python-imaging to change its
behavior. What exactly, I'm not sure.
I don't yet have minimal STR. However, a Docker image exhibiting the
problem can be downloaded from https://queue.taskcluster.net/v1/task
/Ze9Rx-sTSzGCj4dXrEYbjg/runs/0/artifacts/public%2Fimage.tar. To import
the Docker image:
$ curl -L https://queue.taskcluster.net/v1/task/Ze9Rx-
sTSzGCj4dXrEYbjg/runs/0/artifacts/public%2Fimage.tar | docker load
I'm stilling trying to figure out how to start the container with a
proper X server/environment outside Mozilla's testing infrastructure.
** Affects: python-imaging (Ubuntu)
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1.1.7-4ubuntu0.12.04.2 appears to have broken window decorations in
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