Comment 20 for bug 1176355

Revision history for this message
Ming Lei (tom-leiming) wrote : Re: [Bug 1176355] Re: Can't access USB external disk

On Mon, May 6, 2013 at 12:56 AM, Robert <email address hidden> wrote:
>
> Please have another look at my original report: I clearly said that the

Sorry for missing it

> disk worked with 12.04 on the current machine. It stopped working after
> the upgrade to 13.04. It still works fine with 12.04 on another machine.
>
> This looks like a simple regression issue - Google shows a few issues
> with version 2.20 (rather than 1.60 I have) of the same drive, and it
> looks like the driver was incorrectly modified.

Not simple as you imaged, in fact, the fix for 2.20 shouldn't have caused
any regression on 1.60 device3(the fix only excludes 2.20 and above
for cypress subdriver, and not change driver behaviour on 2.19 and below),

Also looks google only shows you have the problem on 1.60 almost.

I think 'dmesg' on 12.04 with the 1.60 device connected should be helpful,
or it is very appreciated that you may test upstream kernel(3.9.0, below link)
and provide usbmon info.

   http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.9-raring/

Thanks,
--
Ming Lei