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Old 12-06-2005, 05:43 AM   #1
Registered: Nov 2005
Posts: 144

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Mouse scroll wheel problem

I have a logitech optical mouse connected via USB. The problem is that the scroll wheel does not work.

Here are my system details:

Linux version 2.6.12-1gb-up (root@gadamer) (gcc version 3.3.5 (Debian 1:3.3.5-13)) #1 Thu Aug 4 18:16:28 CEST 2005
KDE 3.3

The mouse entry in XF86Config-4:
# **********************************************************************
# Core Pointer's InputDevice section
# **********************************************************************

Section "InputDevice"
    Identifier  "Generic Mouse"
    Driver      "mouse"
    Option      "CorePointer"
    Option      "Protocol"    "PS/2"
    Option      "Device"        "/dev/psaux"
    Option      "ZAxisMapping"  "4 5"
Old 12-06-2005, 05:47 AM   #2
Registered: Jan 2005
Posts: 178

Rep: Reputation: 31
Try change Protocol to IMPS/2
Old 12-06-2005, 06:04 AM   #3
Registered: Nov 2005
Posts: 144

Original Poster
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Originally Posted by T.Hsu
Try change Protocol to IMPS/2
I tried that. My keyboard did not work any more (i could not even login), so I had to revert the change via SSH remote login.

Last edited by Lotharster; 12-06-2005 at 06:06 AM.
Old 12-06-2005, 06:13 AM   #4
Registered: Jan 2005
Posts: 178

Rep: Reputation: 31
Hmm, weird, change mouse setting should not affect keyborad.
Old 12-06-2005, 07:16 AM   #5
Senior Member
Registered: Jun 2002
Location: UK .
Distribution: *buntu (usually Kubuntu)
Posts: 2,690
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This isn't a USB problem by chance ?????

Only because I'm using a logitech Cordless Desktop Pro keyboard and a Cordless Mouseman Optical. The sensor(s) for which, are both plugged into the usual mouse/keyboard ports.

# **********************************************************************
# Core Pointer's InputDevice section
# **********************************************************************

Section "InputDevice"

# Identifier and driver

Identifier "Mouse1"
Driver "mouse"
Option "CorePointer"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/input/mouse0"
Option "ZAxisMapping" "4 5"
is how the mouse section of my xorg.conf looks.

I do try to avoid USB except for peripherals like scanners etc, because I've experienced problems with USB in the past and it can be a complete PITA.

Even my mp3 player supports ethernet from the charging cradle!


Old 12-06-2005, 08:22 AM   #6
LQ Guru
Registered: Nov 2003
Location: N. E. England
Distribution: Fedora, CentOS, Debian
Posts: 16,298

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Alo try the following,
Option "Protocol" "ExplorerPS/2"
Old 12-25-2005, 09:42 AM   #7
Registered: Sep 2004
Location: san diego, ca
Distribution: Slackware 10.2
Posts: 74

Rep: Reputation: 15
Option "Protocol" "ExplorerPS/2"
worked for me ;-)

Slackware 10.2 / Logitech USB mouse
Old 12-25-2005, 10:54 AM   #8
LQ Newbie
Registered: Feb 2004
Distribution: Slackware
Posts: 24

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I'm having the same problem, at work right now so i can't try that ExplorerPS/2 option but i hope it will work (logitech usb mouseman dual optical + slackware 10.2 here also).

What's the theory behind these changes? I.e. what does IMPS/2 do that PS/2 doesn't? Same for ExplorerPS/2? I'm also confused as to why a protocol with PS/2 in the name is handling a USB mouse.

The reason I ask is simply that I hope my sound card issues might also be fixed with similar configuration changes


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