Re: [gentoo-user] new machine : mouse trouble : solved by accident

[Walter Dnes]

On Thu, Sep 13, 2012 at 10:06:01PM -0400, Philip Webb wrote

> The effect is quite bizarre & it was the gods who saved me :
> if I hadn't happened to plug the mouse into the neighbouring port,
> I could have spent days struggling to find out what was wrong
> & even taken the mobo back to the store as defective.
>
> Both Mageia -- installed from USB stick in a partition on the
> HDD -- & System Rescue show  /dev/input/mouse0  after booting ;
> in the case of SR it does it before I enter the GUI via 'wizard'.
> They have no problem with the 2.0/1.1 port, but the Gentoo system as
> I've installed it don't show  /dev/input/mouse0 from that port, but
> only if I plug the mouse into the 3.0/2.0 port.  Someone suggested
> it is caused by a Kernel .config setting, which if enabled seems to
> force the system to look in the 3.0 port.  Why it should do that
> doesn't make much sense : such upgrades are usually permissive,
> not restrictive.  BTW there's no difference between 3.4.9 & 3.5.3 .

  Is the cpu AMD?  Intel machines require UHCI (USB 1.1) and AMD
machines require OHCI (USB 1.0) for lowspeed USB devices like keyboards
and mice.  There's a root hub translator selection in .config that's
*SUPPOSED* to work with keyboards+mice, using only the EHCI kernel
driver, but I never could get it to work.

-- 
Walter Dnes <waltdnes@××××××××.org>
I don't run "desktop environments"; I run useful applications