@Andy -- I'm testing the kernels at the link in post #11. It corrects my ACPI issues. However, so far on two boots, I apport pops up with "Your system encountered a serious kernel problem." I'm attaching the two files in /var/crash in the hope that the information will help you.
** Attachment added: "linux-image-2.6.32-19-generic.138355.crash" http://launchpadlibrarian.net/43305033/linux-image-2.6.32-19-generic.138355.crash -- [Dell Studio 1537] temperature sensors and fan stop working following suspend/resume https://bugs.launchpad.net/bugs/526354 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs