I'm having the same issue - but only since upgrading from 14.04 to 14.10. I've been a long time gnome3-team ppa and gnome3 user.
The *big* difference I'm seeing is that it's not consistent. Maybe 1 out of 10 boots the UI is so sluggish it's unusable. Otherwise my issues match everyone else's: once I open Chrome or switch virtual desktops, the UI starts crawling. Some games work fine, others play at less than 1 fps. I'm on a sys76 w/ Intel Corporation Crystal Well Integrated Graphics Controller (rev 08) for graphics. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1386721 Title: Graphics Slow After Upgrade 14.04 - 14.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1386721/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs