As mentioned a few comments up, this appears to be a side-effect of using a Virtual setting that is >2048x2048. But here's the log so you can see all the excitement.
** Attachment added: "Xorg.0.log.old" http://launchpadlibrarian.net/26875943/Xorg.0.log.old -- stray horizontal black lines in multiple apps (firefox, emacs, ...) https://bugs.launchpad.net/bugs/374762 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
