Dear Christopher, Daniel wrote to me in a personal email "usermodesetting was _never_ supported on these machines. " (talking about Ivy Bridge chipsets).
As written by Markus in the initial post, we had an OOPS/Kernel Panic with the i915 driver and the first official Ubuntu 12.10 driver (3.5.17?). As also written before, there are no longer kernel Panics with the new 3.5.18 kernel. In the past, we had some very hard problems with broken gpu drivers for our servers. The easiest way to fix that was adding the nomodeset parameter to the kernel command line on every server (we are freaks, we have many many servers). Looks like we now have to blacklist every gpu driver on every maschine running kernels newer than 3.6 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1070690 Title: BUG: unable to handle kernel NULL pointer dereference at (null); RIP: 0010:[<ffffffff8167f93a>] [<ffffffff8167f93a>] __mutex_lock_slowpath+0xaa/0x150 To manage notifications about this bug go to: https://bugs.launchpad.net/bumblebee/+bug/1070690/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs