On Sun, May 5, 2013 at 9:25 AM, chris <1159...@bugs.launchpad.net> wrote:
> Log attached, with kernel 3.2.0-41.65
>
> ** Attachment added: "dmesg.log"
>
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1159358/+attachment/3665371/+files/dmesg.log
Chris, from the log, we can find the lines below:
'usblp 2-1:1.1: disconnect by usbfs'
......
'usblp 2-1:1.2: disconnect by usbfs'
which means some user space application released the usblp kernel
driver.
I added one line debug info in the usbfs driver to find which application
is doing it, could you test the kernel with debug info on the below link
and feedback the 'dmesg' log?
http://kernel.ubuntu.com/~ming/bugs/1159358/v3/
Thanks,
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https://bugs.launchpad.net/bugs/1159358
Title:
USB Printer & HDD external can't wake up after a moment of time
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