1.1.7-4ubuntu0.12.04.2 appears to have broken window decorations in Ubuntu 12.04

[Gregory Szorc]

For background, see https://bugzilla.mozilla.org/show_bug.cgi?id=1303843#c6.

Mozilla's CI system for Firefox runs tests against Docker images. These Docker images are periodically rebuilt against the latest available Ubuntu packages.

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 https://bugzilla.mozilla.org/show_bug.cgi?id=1303843.

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.

[Gregory Szorc (gregory-szorc)]

Upon further examination, I don't think python-imaging caused this regression, as I can reproduce the bad behavior with the old version of python-imaging. You probably want to close this bug as invalid (I would but I don't see UI for it).