I'm also affected with the latest Skype 4.2.0.11 update 12.04.2 with AMD proprietary driver.
:~$ LD_PRELOAD=/usr/lib/i386-linux-gnu/mesa/libGL.so.1 skype Segmentation fault (core dumped) ~$ uname -a Linux Ideapad-S205 3.5.0-38-generic #59~precise1-Ubuntu SMP Sun Jul 28 05:16:47 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Canonical Partner Developers, which is subscribed to skype in Ubuntu. https://bugs.launchpad.net/bugs/1002187 Title: Skype won't start (segmentation fault) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/skype/+bug/1002187/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~canonical-partner-dev Post to : canonical-partner-dev@lists.launchpad.net Unsubscribe : https://launchpad.net/~canonical-partner-dev More help : https://help.launchpad.net/ListHelp