Re: USB mouse movement is jerky

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Salvio,

I've done a fresh install of Fedora Core 1 on a Dell Latitude C600 (GRUB dual
boot with Win98). I was running RH9,which seem to worked quite fine. I've had
many of the
same problems since installing FC1 as you have described in a few previous
threads:

---conflict between mouse and PCMCIA card (fixed that with Kai's suggestion to
you, i.e.,
acpi=on in grub boot)

---with "acpi=on" shutdown doesn't work completely. It appears to go through the
whole shutdown
process, but hangs with a blank screen after "power down". I haven't seen a
solution posted that
works for me.

---with "acpi=on" USB mouse movement is jerky for me as well. I keep a System
Monitor applet
on my panel and noticed regular spikes in processor activity, which I correlated
to the Battery
Charge Monitor applet (battstat-applet-2). I removed this applet from my panel
and mouse
movement is no longer jerky. Don't know why this works (something to do with
acpi, probably).
This is not really a good solution since you can't monitor the battery charge,
but I will use it until
I find a true fix.

---The mouse configuration that has worked well for me is "ALPS GlidePoint
(PS/2)" with
"Emulate 3 button click" checked. (I saw this solution suggested somewhere on
the net; don't
remember by whom). I can use my touchpad just fine with or without my USB mouse
plugged in
(Microsoft wheel mouse, infrared, wireless; or Kensington wheel mouse).

I'm still quite the newbie (just started using Linux/RH9 in September), and
don't know much
technically, but I hope the above are helpful or at least send you down the
right track to the right
solutions.

Steve Cape

>Anyone has any thoughts?
>
>Salvio wrote:
>
>
>Hi,
>
>Laptop Dell CPx (it has a touchpad and one USB port)
>using Fedora Core 1 - latest updated packages - and
>X (Gnome).
>
>Re: USB mouse movement is jerky
>My Logitech USB mouse works but every sencond or so
>it stops responding for a fraction of a second and
>then resumes working ok.
>
>
>I have tried a number of different mice in the gnome
>mouse configuration with no luck. My mouse is not
>listed. I'm now using a generic wheel mouse.
>
>
>Please note that when I had RedHat 9 installed on
>this same laptop the mouse never gave me any problems.
>
>
>I have to start my kernel using"acpi=on" because of
>a conflict between my USB port and the PCMCIA network
>card. Could this be related to my problem?
>
>
>
>Case 1
>======
>Start the laptop with nothing plugged in the USB port.
>
>Result is that the touchpad works fine.
>
>
>
>
>Case 2
>======
>Start the laptop with my logitech mouse plugged in
>the USB port.
>
>Result is that the mouse works. Movement is jerky.
>
>
>
>If I unplug the USB mouse, the touchpad doesn't work.
>If I plug the mouse back in it resumes working (still
>jerky though).
>
>
>Suggestions?
>
>
>
>
>Thanks,
>Salvio




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