[ale] USB reset error in dmesg

[Rich Faulkner]

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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