Comment 46 for bug 548513

Revision history for this message
Colin Watson (cjwatson) wrote : Re: [Bug 548513] Re: Some firewire & usb disks not working under 10.04

On Fri, Apr 16, 2010 at 03:56:02PM -0000, Jerone Young wrote:
> Not sure if you saw the duplicate bugs to this bug. But also Black
> Berry phones & other USB drives are effected by hdparm. Users have
> reported the work around I gave fixed it for them.

My workaround checks the same device types as yours does.

> These seem unrealated to APM.

I think we're talking at cross-purposes here. The point is not that APM
is the thing that breaks, but rather that APM is the only thing that is
enabled by default in Ubuntu's hdparm. If we cause the default APM
policy not to be applied for these device types, then hdparm will not be
run for those device types by default because there'll be no options to
pass to it.

The reason I think it's better to do it this way is that it means that a
user who has some specific reason to configure hdparm in a particular
way, for a device type that happens to be covered by this udev rule but
doesn't actually break, has a way to do so that isn't completely
obscure.

Does that make more sense now?