Mike - right, I forgot about xinput -- I'm still running Ubuntu 8.04
on all but one of my machines.

Allen - The random jerkiness is because of your mouse acceleration.
The xset(1) man page explains the algorithm.  You could try
turning acceleration all the way off ("xset m 1/1 1") and see if that
doesn't eliminate the random movement.

On Tue, Mar 24, 2009 at 8:56 PM, Mike Cherba <[email protected]> wrote:
> Allen,
>        What else is plugged into USB?  (I.E. the output of lsusb)  I've heard
> rumors of certain other USB devices causing mouse problems in ubuntu
> 8.10.  Usually this is a symptom of the system trying to set the pointer
> via another device like a gamepad or such.  I had a similar issue a few
> years ago where a touchpad that was going bad interfered with my mouse.
> You could try unplugging all other USB devices or input devices other
> than the keyboard and mouse and see if the problem remains.
>
>        Ubuntu has moved mouse config out of xorg and into the HAL stuff.  You
> can use "xinput" to see what devices X is recognizing and how they are
> configured.  Try "xinput list"  to find out what the id for your mouse
> is.  Then run "xinput test [idnum]" to capture all events from the
> device to the console for a while.  Ctrl+c will stop the capture.  if
> you run this you can see whether the events causing the motion come from
> the mouse itself. (I recommend moving the mouse to the upper left corner
> where it should report its location as 0,0)  If no events show up then
> the mouse isn't your cause.  Test each input device in turn until you
> find the one that is sending the spurious events.
>
> I hope this helps.
>                        -Mike
>
>
> "The Earth is the cradle of the mind, but one cannot eternally live in a
> cradle." - Konstantin E. Tsiolkovsky
>
>
> On Tue, 2009-03-24 at 19:59 -0700, Allen Brown wrote:
>> > I've been using USB mice exclusively for several years.  Wireless
>> > ones, even.  No problems.  (Well, occasional problems, but not like
>> > yours.)
>> >
>> > Your symptoms make it sound like you've got a really long polling
>> > interval.  It could be a driver problem.  It could be an X11 problem.
>> > If you're running a VM or a remote protocol like VNC, synergy, or
>> > xtox, that could be the problem.  Or maybe your X server is thrashing.
>>
>> A long polling interval would cause it to jump, but only to the
>> next position, right? What I'm seeing is random directions. It
>> generally trends in the right direction, but with huge jumps in
>> random directions superimposed.
>>
>> > I don't know how to diagnose a driver problem, aside from looking at
>> > the dmesg tea leaves.
>>
>> I just unplugged and replugged the mouse.
>> [40519.102785] usb 5-2.3: USB disconnect, address 6
>> [40526.628354] usb 5-2.4: new full speed USB device using ehci_hcd and
>> address 7
>> [40526.733423] usb 5-2.4: configuration #1 chosen from 1 choice
>> [40526.742749] input: Logitech USB Gaming Mouse as
>> /devices/pci0000:00/0000:00:1d.7/usb5/5-2/5-2.4/5-2.4:1.0/input/input13
>> [40526.780410] input,hidraw2: USB HID v1.11 Mouse [Logitech USB Gaming
>> Mouse] on usb-0000:00:1d.7-2.4
>> [40526.799774] hiddev96hidraw3: USB HID v1.11 Device [Logitech USB Gaming
>> Mouse] on usb-0000:00:1d.7-2.4
>>
>> > If it's a VM or remote protocol problem, you'd notice that it gets
>> > better when you use the local, native host.
>>
>> I'm not using VM or remote.  It's all local.
>>
>> > If it's an X11 problem, it could be that you've got multiple mouse
>> > drivers configured in xorg.conf.  The excerpt below is what I have and
>> > you should have something similar.  Specifically, you should NOT have
>> > SampleRate or Resolution options configured (unless they really do
>> > make your current mouse work better).
>> >
>> >
>> > Section "InputDevice"
>> >         Identifier      "Configured Mouse"
>> >         Driver          "mouse"
>> >         Option          "CorePointer"
>> >         Option          "Device"                "/dev/input/mice"
>> >         Option          "Protocol"              "ImPS/2"
>> >         Option          "ZAxisMapping"          "4 5"
>> >         Option          "Emulate3Buttons"       "true"
>> > EndSection
>> >
>> > For more info, see the mousedrv(4) man page.
>>
>> That looks like what I've used in the past.  And if my desktop
>> was running I would check what's there.  Currently I'm reduced
>> to the laptop, which runs Ubuntu 8.10 I think.  And it is running
>> the latest xorg which has a very short xorg.conf file.  Short
>> enough I can include it in its entirety.
>>
>> Section "Device"
>>         Identifier      "Configured Video Device"
>>         Option          "UseFBDev"              "true"
>> EndSection
>>
>> Section "Monitor"
>>         Identifier      "Configured Monitor"
>> EndSection
>>
>> Section "Screen"
>>         Identifier      "Default Screen"
>>         Monitor         "Configured Monitor"
>>         Device          "Configured Video Device"
>> EndSection
>>
>> Section "InputDevice"
>>         Identifier      "Generic Keyboard"
>>         Driver          "kbd"
>>         Option          "CoreKeyboard"
>>         Option          "XkbRules"      "xorg"
>>         Option          "XkbModel"      "pc105"
>>         Option          "XkbLayout"     "us"
>>         Option          "XkbOptions"    "lv3:ralt_switch"
>>         Option  "XkbOptions"    "ctrl:nocaps"
>> EndSection
>>
>> As you can see there is no mention of a mouse. And
>> about half the time the system seems to ignore this
>> file anyway since I don't always get the ctrl:nocaps
>> mapping.
>> --
>> Allen Brown
>> http://brown.armoredpenguin.com/~abrown
>>
>>
>> > On Tue, Mar 24, 2009 at 7:17 PM, Allen Brown <[email protected]> wrote:
>> >> I've tried to USB mouses with Linux. They suck beyond belief.
>> >> The graphic cursor is extremely jumpy, making it hard to
>> >> click on anything, even the big targets. Small targets
>> >> are extremely frustrating. I'm talking about jumping by
>> >> up to 1/2 inch on the screen.
>> >>
>> >> Somebody is screwing up big time. Has anybody gotten any
>> >> USB mouse to work with Linux? I've seen this with two
>> >> different computers. I've seen it with two different
>> >> mice. The behavior is consistent.
>> >>
>> >> Mind you, PS2 mice work fine. It's just USB that sucks.
>> >> --
>> >> Allen Brown
>> >> http://brown.armoredpenguin.com/~abrown
>> > --
>> > Bob Miller                              K<bob>
>> >                                         [email protected]
>>
>>
>>
>>
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-- 
Bob Miller                              K<bob>
                                        [email protected]
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