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Message-ID: <Pine.LNX.4.44L0.0910031720590.18843-100000@netrider.rowland.org> Date: Sat, 3 Oct 2009 17:26:50 -0400 (EDT) From: Alan Stern <stern@...land.harvard.edu> To: Felipe Contreras <felipe.contreras@...il.com> cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org> Subject: Re: Annoying problems with lacie external hd (JMicron 0x2339?) On Sat, 3 Oct 2009, Felipe Contreras wrote: > Hi, > > This is with 2.6.31.1. > > I'm having a lot of problems with a lacie external hd[1]. It seems the > actual disk is a seagate ST375064, and the bridge is a JMicron 2339. > > In normal usage what I see is that if I don't use the disk after a > while hear a loud click (as if something got stuck) and then I cannot > use it any more; I have to turn it off and on again. This sounds very much like a hardware problem, either in the drive or in the bridge chip. There's no direct way to tell which; you would have to try attaching the drive to a different chip or the chip to a different drive. The two places where your listings showed the Serial number (the kernel log and the /sys/kernel/debug/usb/devices file) have different values, suggesting that the chip is at fault. But this isn't definitive. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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