[Bug 258736] [NEW] Slow resume because of SATA (COMRESET failed) after harddisk upgrade (Seagate Momentus 7200.3) on Thinkpad T61

[Karl Martin]

Public bug reported:

Binary package hint: linux-source

Hi,

I would like to report a problem that occurred after upgrading the hard
disk of my Thinkpad T61 to a Seagate Momentus 7200.3. Although the
system suspends without problems it needs quite long for resuming. The
message "COMRESET failed" is displayed after several seconds of
inactivity. Thereafter, resuming continues normally. Dmesg displays the
following error message: "kernel: [    3.647374] ata3: port is slow to
respond, please be patient (Status 0x80)". Resuming in Windows Vista
works fine without delay. The problem does also not occur in Ubuntu when
the SATA controller is set to "Compatibility Mode" (BIOS).

I had a similar problem some time ago with the old hard disk when
resuming with activated SATA power management, However, the current
problem also occurs when SATA power management is disabled.

I suspect that the hard drive might not be properly recognized by the
kernel as dmesg shows only SATA I speed (1.5 GB/s) although to my
knowledge both T61 and the Seagate hard disk should support SATA II. NCQ
seems to be properly activated. Deactivating it by "echo 1 >
/sys/block/sda/device/queue_depth" did not help.

I would be very happy if somebody could give me a hint how to solve the
problem. Many thanks in advance!

Karl Martin

** Affects: linux-meta (Ubuntu)
     Importance: Undecided
         Status: New

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Slow resume because of SATA (COMRESET failed) after harddisk upgrade (Seagate Momentus 7200.3) on Thinkpad T61
https://bugs.launchpad.net/bugs/258736
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