I am experiencing the same issue on a HP Pavilion a706n with kernel version 2.6.17-10. The error message prints every six seconds.
Searching /var/log/dmesg for "PBLK" turned up nothing for me, but I've attached said file. Previously, I had filed a support request for this issue through a misguided conception of how Launchpad works. It can be found here: https://answers.launchpad.net/ubuntu/+ticket/2935 To summarize that support request, the message is printing even though my fans are running appropriately. Also, the problem seems to affect Fedora as well, judging by discussions I've read elsewhere, so the bug is likely upstream. Also, I tried unloaded the "thermal" module from my kernel temporarily, and that stopped the errors, but it probably isn't safe to leave that module unloaded. Finally, another user mentioned that he solved this problem on his system by flashing his BIOS, but that is not a viable option for many users. ** Attachment added: "dmesg Log" http://librarian.launchpad.net/5714171/dmesg -- [EDGY] ACPI: Unable to turn cooling... https://launchpad.net/bugs/63550 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
