*** This bug is a duplicate of bug 761065 *** https://bugs.launchpad.net/bugs/761065
I just tried the kernel AceLan Kao posted in comment #13 and no luck. Connecting an external monitor causes a system lockup on my system. I went back to the 2.6.39 kernel in kernel-ppa and everything works better, it seems. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/762855 Title: [sandybridge-m-gt2+] Display on external monitor (vga) is black on 13" MacBook Pro 8,1 (x86_64) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs