Ubuntu becomes unrepsonsive on resume with external firewire disk attached

[zkennan]

When the system is suspended to RAM with an external firewire hard disk attached and mounted, it becomes unresponsive on resume (No response to keyboard or mouse, and only a blinking cursor on console is shown, no messages). I'm unsure if there is actually a freeze occurring, or whether some hardware drivers (kbd, mouse, etc) are somehow being ignored. My system is a Macbook Pro 4,1 Running 8.10, kernel 2.6.27-9-generic. The external disk has two partitions, one fat32 and one ntfs.

[Stefan Richter (stefan-r-ubz)]

Are there also no relevant messages left in the system log?
What is the brand and exact model of the FireWire disk?

[zkennan (zivkennan)]

The disk is an acomdata HD-320 FE5-72.

I'll have to check the logs, I didn't think of that...

Also, I have a temporary fix through a script in /etc/pm/sleep.d that
removes the modules sbp2, ohci1394 and ieee1394 from the kernel on sleep,
and reinserts them on resume. Of course this only works if a file isn't
being read from the disk while the computer goes to sleep.

[Stefan Richter (stefan-r-ubz)]

Is it sufficient to remove only sbp2 but leave ohci1394 (and ieee1394 of course) loaded during suspend, with the disk attached?

[zkennan (zivkennan)]

Yes, removing just sbp2 still resolves the issue. I looked at my kernel logs
and didn't see anything at all, it seems as if the system logs suspend and
then logs nothing on wake up, until reboot.

[Serge Hallyn (serge-hallyn)]

Please reply if this is still an issue on a supported release.