Up until this morning I had the same problem; my MacBook Air would suspend but couldn't resume. When attempting to resume the screen would turn on briefly to a black screen (backlight on) and then turn off again (backlight off) and freeze with no image on the screen.
Now, as of getting the latest updates and rebooting this evening, it won't even suspend. Closing the lid does nothing and selecting Suspend simply locks the screen. sciri@Rico:~$ sudo dmidecode -s system-product-name MacBookAir3,1 sciri@Rico:~$ lsb_release -dr Description: Ubuntu oneiric (development branch) Release: 11.10 sciri@Rico:~$ uname -a Linux Rico 3.0.0-10-generic #16-Ubuntu SMP Fri Sep 2 18:32:04 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux ** Also affects: mactel-support Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/822054 Title: suspend / sleep / resume fails on macbook in oneiric 11.10 To manage notifications about this bug go to: https://bugs.launchpad.net/mactel-support/+bug/822054/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs