@kurt: I just forgot to change the status, thanks for pointing it out. I've already corresponded with upstream kernel devs about the C-state issues, who agreed that it looks like a BIOS problem, so I don't see any benefit to filing a bug upstream.
@curtis: I suspect that workaround really just masks the underlying problem. It's easy to show that sata compatibility _can_ work correctly by using intel_idle.max_cstate=1. Perhaps there's some bad interaction between sata mode and deep C-states that leads to the performance issues. It still seems like the best solution is to pass nohz=off highres=off though since it works around the suspend-to-RAM issues. ** Changed in: linux (Ubuntu) Status: Confirmed => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/601986 Title: Disk driver problems on Toshiba NB305Netbook -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs