I've installed the 3.4 kernel that you've suggested. I'm attaching the dmesg just in case it could be of any use. I'll let you know how it goes.
** Attachment added: "dmesg with suggested 3.4 kernel" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/983146/+attachment/3091103/+files/dmesg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/983146 Title: [sandybridge-m-gt2+] GPU lockup render.IPEHR: 0xd208b6d0 To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/983146/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs