I see these exact same errors in the messages file. Basically, the resume code doesn't reset the SATA hardware, so we are getting these device errors when reading or writing to the HD.
I don't think that it's a dup of https://launchpad.net/distros/ubuntu/+source/linux-source-2.6.17/+bug/63840 but hay be related. Mine suspends completely, but does not resume. -- Edgy: Suspend to RAM doesn't resume on Toshiba Tecra M3 https://launchpad.net/bugs/68927 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
