Comment 229 for bug 88746

Ben,
I have many computers (all IBM/Lenovo) as well and my 300GB Maxtor OneTouch II USB hard drive used to work perfectly in Edgy for both laptops and desktops (using USB 1.0 or 2.0). Gusty somehow introduced the problem, and the problem is still on Hardy as far as I can tell.

At some point it worked (in Edgy) and using the same hardware with Gusty/Hardy introduced the problem. So the question is, was the autosuspend introduced in Gusty what broke it or was it something else? If it was the autosuspend, yes we have workaround but, how about getting USB 2.0 and autosuspend to work at the same time. If it was not the autosuspend, then we would like more debug done to see where's the conflict in the echi_hcd module and hopefully get it fixed.

I also tried gOS and Linux Mint, but because they are based on Ubuntu Gusty they have the same issue. I wonder if the Maxtor USB drives were tested in Debian and therefore Gusty/Hardy.

Axel Ramirez

The World's Best-Engineered PCs.
Lenovo: New World, New Thinking.
http://www.lenovovision.com/lv2/mediaplayer.php?fid=anthem

> From: <email address hidden>
> To: <email address hidden>
> Date: Mon, 4 Feb 2008 21:13:19 +0000
> Subject: [Bug 88746] Re: ehci_hcd module causes I/O errors in USB 2.0 devices
>
> Elias, you are over simplifying this issue. If we disable autosuspend,
> then suspend/resume wont work for a good portion of people. After long
> ago weighing the options, we had to decide on the lesser of two evils:
> suspend/resume working for a large group of users, or usb2.0 working for
> an equally large group of users. Considering that both problems have
> work arounds, the decision was made based on expected behavior. Usually
> a system with usb2.0 ports that were affected by the problem also had
> usb1.0-only ports that did work. So users could continue to use their
> devices without much problem (although at a slower speed).
>
> Also, please don't exaggerate how many people are affected by this. Over
> all, it's a small percentage of people. I have > 15 laptops, covering a
> large range of chipsets, and none of them are affected by either
> problem.
>
> --
> ehci_hcd module causes I/O errors in USB 2.0 devices
> https://bugs.launchpad.net/bugs/88746
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> of the bug.

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