In case anyone is using OpenCV + ffmpeg to do their image processing, I found a bug in OpenCV that causes ffmpeg to hang for up to 30 seconds or so when trying to connect to the AXIS M1011 camera. I'm surprised the SmartDashboard doesn't run into this problem, since it appears to use ffmpeg underneath the hood for capturing with camera extension widgets (but not for the default camera widget that comes with it).
If you're interested in more details, check out the bug reports at
OpenCV and
FFMpeg.