[ale] Linux 3.0.0 USB issues

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Chris Fowler

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Mar 30, 2012, 9:10:33 AM3/30/12
to ale@ale.org >> Atlanta Linux Enthusiasts
I've been running Ubuntu 11.10 for a few weeks and am taking of dropping
down to 11.04 LTS. I've been experiencing USB enumeration issues for
EHCI. Normally not a problem, but I need my flash drives and disks to
run at the fastest speed possible. I've googled this and it seems as if
this is an issue in 3.0. As anyone else found a workaround?

Chris
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mi...@trausch.us

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Mar 30, 2012, 12:01:04 PM3/30/12
to Atlanta Linux Enthusiasts
On 03/30/2012 09:10 AM, Chris Fowler wrote:
> I've been running Ubuntu 11.10 for a few weeks and am taking of dropping
> down to 11.04 LTS. I've been experiencing USB enumeration issues for
> EHCI. Normally not a problem, but I need my flash drives and disks to
> run at the fastest speed possible. I've googled this and it seems as if
> this is an issue in 3.0. As anyone else found a workaround?

Simply upgrade your kernel to 3.1 or 3.2 if you are having issues with 3.0.

Even though you are running a binary distribution, unless you _rely_ on
something in the kernel binary that the distribution provides, you can
easily compile your own vanilla kernel on an Ubuntu system. I used to
do it all the time, before I started using Gentoo, because of various
deficiencies in the Ubuntu kernel.

Seriously, that's the workaround.

If you need features from their custom kernel, check out their git
source trees, which bring the kernel up-to-date with the Ubuntu set of
patches in their own lands.

--- Mike

--
A man who reasons deliberately, manages it better after studying Logic
than he could before, if he is sincere about it and has common sense.
--- Carveth Read, “Logic”

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mi...@trausch.us

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Mar 30, 2012, 12:01:45 PM3/30/12
to Atlanta Linux Enthusiasts
On 03/30/2012 09:10 AM, Chris Fowler wrote:
> I've been running Ubuntu 11.10 for a few weeks and am taking of dropping
> down to 11.04 LTS

Also, instead of downgrading (to 10.04, I think you meant, which was the
last LTS) there is a new LTS coming out in a few weeks.

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Chris Fowler

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Mar 30, 2012, 12:08:51 PM3/30/12
to Atlanta Linux Enthusiasts
On 03/30/2012 12:01 PM, mi...@trausch.us wrote:
> On 03/30/2012 09:10 AM, Chris Fowler wrote:
>> I've been running Ubuntu 11.10 for a few weeks and am taking of dropping
>> down to 11.04 LTS
>
> Also, instead of downgrading (to 10.04, I think you meant, which was the
> last LTS) there is a new LTS coming out in a few weeks.
>


Right after taxes :P

The compile is an easy option for me. I was not sure if 3.1 had
addressed any of these issues. Almost none of my storage based devices
can enumerate on EHCI.

I debated it may be a controller problem with 3.0 and I can pick up a
PCIe USB 3.0 card on eBay for real cheap. It supports 2.0 and that card
could be used only for storage devices.

mi...@trausch.us

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Mar 30, 2012, 12:12:48 PM3/30/12
to Atlanta Linux Enthusiasts
On 03/30/2012 12:08 PM, Chris Fowler wrote:
> Right after taxes :P
>
> The compile is an easy option for me. I was not sure if 3.1 had
> addressed any of these issues. Almost none of my storage based devices
> can enumerate on EHCI.
>
> I debated it may be a controller problem with 3.0 and I can pick up a
> PCIe USB 3.0 card on eBay for real cheap. It supports 2.0 and that card
> could be used only for storage devices.

I haven't used xHCI support heavily yet, so I cannot say whether it
works at all. I do not have an extension cord for my lone USB 3 port,
and I also have no USB 3 devices as of yet.

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Chris Fowler

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Mar 30, 2012, 12:22:50 PM3/30/12
to Atlanta Linux Enthusiasts
On 03/30/2012 12:12 PM, mi...@trausch.us wrote:
> I haven't used xHCI support heavily yet, so I cannot say whether it
> works at all. I do not have an extension cord for my lone USB 3 port,
> and I also have no USB 3 devices as of yet.


I have no 3.0 devices either. My idea is that new tech might be better
supported in 3.0.

Jeff Hubbs

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Mar 30, 2012, 1:48:09 PM3/30/12
to Atlanta Linux Enthusiasts
I'm all for this...especially the escape-to-Gentoo part.  It's good to have a mindset where your kernel version is not tied to your distro version (Gentoo is versionless).


On 3/30/12 12:01 PM, mi...@trausch.us wrote:
On 03/30/2012 09:10 AM, Chris Fowler wrote:
I've been running Ubuntu 11.10 for a few weeks and am taking of dropping 
down to 11.04 LTS.  I've been experiencing USB enumeration issues for 
EHCI.  Normally not a problem, but I need my flash drives and disks to 
run at the fastest speed possible.  I've googled this and it seems as if 
this is an issue in 3.0.   As anyone else found a workaround?
Simply upgrade your kernel to 3.1 or 3.2 if you are having issues with 3.0.

Even though you are running a binary distribution, unless you _rely_ on
something in the kernel binary that the distribution provides, you can
easily compile your own vanilla kernel on an Ubuntu system.  I used to
do it all the time, before I started using Gentoo, because of various
deficiencies in the Ubuntu kernel.

Seriously, that's the workaround.

If you need features from their custom kernel, check out their git
source trees, which bring the kernel up-to-date with the Ubuntu set of
patches in their own lands.

	--- Mike



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