I have been frustrated by the camera connectivity issue that has been affecting Epinters CM10 ROM. Luckily, Epinter posted an easy solution to fix this without rebooting the device.. Looks like this works Epinters CM10.1 ROM based on comments in that thread (I have not tested it).
I decided that it would be a good idea to wrap this in a simple app that would allow a one-click fix!
This app requires root in order to kill the mediaserver process.
2) Open "Atrix Camera Fix"
3) Click "Run Fix!"
4) Grant Superuser permission
If there is interest, I could create a one-click widget to do this as well.
Version 1.1:Added ability to kill the gallery/camera app (com.android.gallery3d)
Edit (Jan 1): Added changelog and updated apk
Edit (Mar 3): Seems to be compatible with Epinter's CM 10.1
Edit (Apr 12): Reports of working with CM 10.1/10.2 i9300 (International Galaxy S3) & CM11 sprint galaxy s3