[ltp] USB ports

Fri, 30 Nov 2012 16:29:29 -0800

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Hi Micha,

On Fri, Nov 30, 2012 at 2:05 PM, Micha Feigin <michf@post.tau.ac.il> wrote:
>
> On 30/11/2012 16:49, Dave Hylands wrote:
>
> I have a W520 running ubuntu 12.04
>
> I normally have the laptop sitting in a dock
>
> This morning it updated the kernel to 3.2.0-34, and the USB port on the
left side of the laptop stopped working. The USB ports on the back of the
dock seem to work fine.
>
> And the USB on the back right corner of the laptop seems to be working
fine as well. Its just the two on the left side that seem to have stopped
working.
>
> Anybody have any ideas what might be going on here?
>
> I never got them to work properly on my laptop. They are USB 3 ports
while the ones on the back and right are usb 2. Whenever I connected a usb
3 drive to them the driver would lock up and required a reboot to start
working again.
>
> you can run dmesg right after connecting something to the ports and
submit the message in the logs to help analyze

So they were working fine prior to the kernel update,.

What I see in dmesg when I plug my device in:

[16709.071416] xhci_hcd 0000:0e:00.0: ERROR no room on ep ring
[16709.071419] xhci_hcd 0000:0e:00.0: ERR: No room for command on command
ring
[16709.071421] hub 3-0:1.0: couldn't allocate port 1 usb_device

I found this:
http://askubuntu.com/questions/187644/error-no-room-on-ep-ring-with-usb-3-0-devicewhich
suggests update to 3.4 may fix the problem.

--
Dave Hylands
Shuswap, BC, Canada
http://www.davehylands.com

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Hi Micha, On Fri, Nov 30, 2012 at 2:05 PM, Micha Feigin &lt;<a h=
ref=3D"mailto:michf@post.tau.ac.il" target=3D"_blank">michf@post.tau.ac.il<=
/a>&gt; wrote: &gt; &gt; On 30/11/2012 16:49, Dave Hylands wrote: =
&gt; 
&gt; I have a W520 running ubuntu 12.04 
&gt; &gt; I normally have the laptop sitting in a dock &gt; &gt; T=
his morning it updated the kernel to 3.2.0-34, and the USB port on the left=
 side of the laptop stopped working. The USB ports on the back of the dock =
seem to work fine.

&gt; &gt; And the USB on the back right corner of the laptop seems to be=
 working fine as well. Its just the two on the left side that seem to have =
stopped working. &gt; &gt; Anybody have any ideas what might be going=
 on here?

&gt; &gt; I never got them to work properly on my laptop. They are USB 3=
 ports while the ones on the back and right are usb 2. Whenever I connected=
 a usb 3 drive to them the driver would lock up and required a reboot to st=
art working again.

&gt;<br>&gt; you can run dmesg right after connecting something to the port=
s and submit the message in the logs to help analyze<br><br>So they were wo=
rking fine prior to the kernel update,.<br><br>What I see in dmesg when I p=
lug my device in:<br>

<br>[16709.071416] xhci_hcd 0000:0e:00.0: ERROR no room on ep ring<br>[1670=
9.071419] xhci_hcd 0000:0e:00.0: ERR: No room for command on command ring<b=
r>[16709.071421] hub 3-0:1.0: couldn&#39;t allocate port 1 usb_device<br>

<br>I found this: <a href=3D"http://askubuntu.com/questions/187644/error-no=
-room-on-ep-ring-with-usb-3-0-device" target=3D"_blank">http://askubuntu.co=
m/questions/187644/error-no-room-on-ep-ring-with-usb-3-0-device</a> which s=
uggests update to 3.4 may fix the problem.<br>

<br>--<br>Dave Hylands<br>Shuswap, BC, Canada<br><a href=3D"http://www.dave=
hylands.com" target=3D"_blank">http://www.davehylands.com</a>

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