Christopher - As I suspected, upgrading the BIOS didn't resolve the problem. The problem only happened since upgrading to 13.04 so I really can't see this being BIOS related.
I also tried it with BIOS version F.15 as going straight to F.19 gave an error message on boot up so I had to go to F.15 then back to F.19 to clear it. Having to dig out a spare disk so I could install Windows wasn't much fun either. That's an afternoon I'll never get back :-( On both occasions I suspended Ubuntu and when the system came back on the fan was on full and I had to reboot to clear it. Output after applying F.19 as requested is below: 68MCU Ver. F.19 07/06/2010 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1213348 Title: Fan too fast on HP 6910p after standby To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1213348/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs