Quick question about mouse scroll wheel and xorg.conf fie

Jacob Mansfield cyberjacob at gmail.com
Wed Oct 13 20:33:44 UTC 2010

think that's bad, my usb mouse dissconnects and reconnects in X every time
it fires an event, doesn't seem to effect performance or latency though. is
it a wired or wireless mouse, I've had similar problems with wireless ones
Jacob Mansfield

On 13 October 2010 21:01, Anthony Papillion <papillion at gmail.com> wrote:

> Hi Marius,
> Thanks for the quick response!
> > That is very strange.  Is it a USB mouse?  Do you see any output if you
> > run xev in a terminal, move the mouse cursor over the xev window, and
> > scroll the wheel?  You should see ButtonPress and ButtonRelease events
> > for buttons 4 and 5.
> Yes, it's a USB mouse that's about a year old. In xev I see the expected
> ButtonPress and ButtonRelease events ONLY when I click the wheel.
> Scrolling produces no output at all. The event is totally ignored.
> > It *is* enabled by default, and has been for *years*.  How old are those
> > guides you're reading?
> So..umm..yeah, I just looked. 2007. My bad!
> > First try to find out why your scroll wheel isn't working.  Attaching
> > your /var/log/Xorg.0.log file might help us guess why X doesn't detect
> > your mouse has a scroll wheel.  E.g. over here I see
> Interesting that I see something similar.  Here is the relevent part of
> the Xorg.0.log file. Looks good, right?
> II) config/udev: Adding input device Logitech Optical USB Mouse
> (/dev/input/event6)
> (**) Logitech Optical USB Mouse: Applying InputClass "evdev pointer
> catchall"
> (**) Logitech Optical USB Mouse: always reports core events
> (**) Logitech Optical USB Mouse: Device: "/dev/input/event6"
> (II) Logitech Optical USB Mouse: Found 3 mouse buttons
> (II) Logitech Optical USB Mouse: Found scroll wheel(s)
> (II) Logitech Optical USB Mouse: Found relative axes
> (II) Logitech Optical USB Mouse: Found x and y relative axes
> (II) Logitech Optical USB Mouse: Configuring as mouse
> (**) Logitech Optical USB Mouse: YAxisMapping: buttons 4 and 5
> (**) Logitech Optical USB Mouse: EmulateWheelButton: 4,
> EmulateWheelInertia: 10, EmulateWheelTimeout: 200
> (II) XINPUT: Adding extended input device "Logitech Optical USB
> Mouse" (type: MOUSE)
> (II) Logitech Optical USB Mouse: initialized for relative axes.
> (II) config/udev: Adding input device Logitech Optical USB Mouse
> (/dev/input/mouse1)
> (II) No input driver/identifier specified (ignoring)
> I'm not sure if the last line belongs to the mouse detection or not.
> The next thing that happens in the log is the detection of my USB webcam
> so that line might have to do with that.
> So it seems that my mouse wheel is being detected just not responding.
> I've tried this on another (Windows) computer and the mouse is
> functioning properly so I know my scroll actually does work.
> Odd huh? Any ideas?
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