I am running Linux Mint, but i think this issue will be mutual with Ubuntu. My webcam in Skype is upside down (in Cheese it's ok). There are a lot of topics dealing with this coming up with fix like this:
$ LD_PRELOAD=/usr/lib/i386-linux-gnu/libv4l/v4l1compat.so skype
or similar modifications. Unfortunately, I don't have this file.
$ locate v4l1compat.so
which doesn't work:
$ LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libv4l/v4l1compat.so skype ERROR: ld.so: object '/usr/lib/x86_64-linux-gnu/libv4l/v4l1compat.so' from LD_PRELOAD cannot be preloaded: ignored.
Skype loads, but the webcam is still upside down.
I remember I've read somewhere that I should use 32bit libraries because of skype. But how can I get those? I tried simple copy from another Linux machine, but that unsurprisingly did not help.