[ale] USB reset error in dmesg

[Jim Kinney]

Oh. good catch! I have not had the chance to look at "the piles" here

So disconnecting the mouse will stop the failures?

On Fri, Jun 15, 2012 at 5:09 PM, Rich Faulkner <rfaulkner at tux86.org> wrote:

> **
> The plot thickens:  found the MS USB mouse is at issue...
>
> - The low speed USB device using ehci_hcd and address 3 is the Microsoft
> 3-Button Mouse as / class/ input/ input0 on usb-0000:00:1d.0-1.1
>
> - dmesg indicates:  PCI: cache line size of 32 is not supported by device
> 0000:00:1d.0
>
> - I can see the USB 2.0, and EHCI 1.00 driver started for this device as
> well
>
> Observation of the mouse shows power blinking-off periodically.  Keyboard
> (USB) acts like it has sticking keys periodically.  I suspect this will
> goof-up most anything attached to the USB bus.
>
> I have been trying some kernel parameters to grub.conf but no improvement
> thus far to the mouse.  (Only got rid of an issue concerning mtrr).
> Another hint in this is that when you set the BIOS for multi-monitor
> support the problem goes away.  (Yes, I know we could set that and leave it
> but that's not the point.  Need to find the fix for this other than a
> workaround like 6.x or the BIOS setting).
>
> TIA.......Rich
>
>
>
>  Chipset is the Intel C206 (PCH).   Datasheet for the SHB is here:
> http://www.trentontechnology.com/downloads/datasheets/trenton_tsb7053_productdatasheet.pdf
>
>
>   I have come across a problem with RHEL 5.x family where I am getting
> the following output in dmesg:
>
> "usb 2-1.1: reset low speed USB device using ehci_hcd and address 3"
>
> My USB attached keyboard and mouse do not function properly (lag and
> inaccurate output).  It looks like there is an issue in the system support
> of USB but it only seems to exist in 5.x family.  Once tested in 6.x it all
> works.  (Testing with both CentOS and Scientific Linux - live and installed
> samples)
>
> I am going through the debug output manually but thought I'd shoot this
> over here for a more experienced perspective from those with grayer beards
> than I...
>
> TIA........Rich
>
>
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-- 
-- 
James P. Kinney III
*
*Every time you stop a school, you will have to build a jail. What you gain
at one end you lose at the other. It's like feeding a dog on his own tail.
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- Speech 11/23/1900 Mark Twain
*
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