Thanks for finding the cause of this. I have reported the issue to AG Projects via their support email, I hope they're able to fix it eventually.
Meanwhile I would be very interested in using the workaround you describe - downgrading libgcrypt11. When I try this, it wants me to remove a lot of essential packages: gdi2k@x200-1204:~$ sudo apt-get install libgcrypt11=1.5.0-3 Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: glib-networking:i386 googleearth gstreamer0.10-plugins-good:i386 gtk2-engines:i386 gtk2-engines-murrine:i386 gtk2-engines-pixbuf:i386 ia32-libs ia32-libs-multiarch:i386 ibus-gtk:i386 libcanberra-gtk-module:i386 libcanberra-gtk0:i386 libcups2:i386 libcupsimage2:i386 libcurl3:i386 libgail-common:i386 libgail18:i386 libgcrypt11:i386 libgnome-keyring0:i386 libgnutls26:i386 libgtk2.0-0:i386 libldap-2.4-2:i386 librsvg2-common:i386 librtmp0:i386 libsoup-gnome2.4-1:i386 libsoup2.4-1:i386 libxslt1.1:i386 skype teamviewer7 The following packages will be DOWNGRADED: libgcrypt11 0 upgraded, 0 newly installed, 1 downgraded, 28 to remove and 0 not upgraded. Need to get 280 kB of archives. After this operation, 140 MB disk space will be freed. Do you want to continue [Y/n]? Were you able to downgrade the package without breaking / removing a lot of other packages? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1013798 Title: Blink SIP client segfaults with libgcrypt11 1.5.0-3ubuntu0.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libgcrypt11/+bug/1013798/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs