Reopening, there's more to this than I thought. I thought 3.2.0-14 brought with it a regression, but it turns out it's now the -pae kernels that freeze during boot as I initially described. The thing is, I could've sworn I already ruled this out and also that I did most of yesterday's successful boots with 3.2.0-13-pae, since that was the topmost and default in the Grub menu. So I'm not yet ruling out some funky hardware fault, but for now I'll update the title to reflect how it presently seems: the wistron_btns problem lies with -pae. Non-pae kernels all the way back to 3.2.0-12 now boot fine.
I'm currently running memtest on the laptop just to be sure, although I've done it multiple times before with no issues. ** Summary changed: - Freezes during boot when wistron_btns loaded + With a -pae kernel, freeze during boot when wistron_btns loaded ** Changed in: linux (Ubuntu) Status: Fix Released => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/926012 Title: With a -pae kernel, freeze during boot when wistron_btns loaded To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/926012/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs