jumping erratic mouse cursor

From: Robert (t296q4102_at_sneakemail.com)
Date: 08/26/04

  • Next message: Dances With Crows: "Re: jumping erratic mouse cursor" 
    Date: 26 Aug 2004 14:35:07 -0500

    I use a NoHands Mouse with a serial interface. The regular mouse is a
    PS/2, but I configured X Windows (via XF86Config) to use the serial
    interface for the mouse instead.

    This would otherwise be all fine and good, except that I have at least two
    problems. (1) The mouse pointer jumps all over the place as I move it
    with my foot (via the NoHands Mouse). (2) Also, my X Windows server
    behaves strangely when using the serial port for the mouse verses the PS/2
    mouse. The PS/2 mouse works perfectly, but, when using the serial mouse
    interface, occassionally the entire X Windows server just freezes up and
    stops until I move the mouse again. Even the keyboard doesn't work during
    this time.

    I was speculating that it might be the IRQ, but I used setserial to
    examine /dev/ttyS1 and looked at /proc/interrupts and there were no
    overlaps ('though I did notice that the serial device is not listed in
    /proc/interrupts). I also checked /proc/ioports and it seemed
    peachy-fine.

    The baud rate is set at 1200 (by default, ttyS1 seems to go to 9600, but I
    override it each time on boot).

    BTW, I did disable gpm, but that didn't help. I haven't tried the
    /dev/gpmdata trick.

    The computer is running RedHat 9 with (I think) a 2.4.X kernel.

    I'm sorry I can't dump out the output from setserial and the contents of
    various /proc files, but the machine is at work and there is strict
    network security there.

    Thanks for any information.

  • Next message: Dances With Crows: "Re: jumping erratic mouse cursor"

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