Hi, I am using Scientific Linux(CERN)4 HP Compaq dx2480 Business PC with an optical mouse. The mouse wheel is not working, I mean I cannot scroll the doccuments using the mouse central wheel. So I look for /etc/X11/xorg.conf file there I have found this:

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "yes"

I hvae changed IMPS/2 to PS/2, xplorerps/2 but still the same thing. Can anybody please help me in this matter ? Thanks in advance.
Biplab Bijay

Hi,

Comment out or delete
restart X and see if it's working.

Thanks for your reply. But I have already tried that option also. But still its not working.I don't know what to do. Can you help me ?



With regards,
Biplab Bijay.

You can try variations of protocol and device
According to the tip in Mouse administration of your distro, you can select "Generic - Wheel Mouse" to enable the mouse wheel

Hi sorry for the late reply. I have tried all possible protocols, options, devices but that didn't work. I have also used the system-config-mouseand select generic wheel mouse with PS2, but that also doesnot work. The only thing that has happened is my computer become slow so i have to change back. Anyway thanks for your help.

With regards,
Biplab Bijay.

Do you know that the hardware is working? Have you tried using this mouse on another system or an known-good mouse on this system?

Yes I have tried it. In my machine suse11.0 is installed along with Scientific Linux. The mouse wheel is working in suse11.0 but not in Scientific Linux.

Biplab Bijay

Why don't you use the mouse settings in Suse xorg.conf with the Scientific Linux xorg.conf?

Hi sorry for the late reply(15th was the Independence Day). Ihve tried suse xorg configuration for the mouse but the problem persists.Thank you for your reply.

With regards Biplab Bijay.

Hi sorry for the late reply(15th was the Independence Day). Ihve tried suse xorg configuration for the mouse but the problem persists.Thank you for your reply.

With regards Biplab Bijay.

Is there something logged in /var/log/Xorg.0.log regarding mouse?
Maybe you should check your distro for a newer mouse driver, or if available use the evdev driver

I could not follow from /var/log/Xorg.0.log file. I am sending you the mouse options here as give in this file can u just check what is wrong in this ?

(**) |-->Input Device "Mouse0"

(II) LoadModule: "mouse"
(II) Loading /usr/X11R6/lib/modules/input/mouse_drv.o
(II) Module mouse: vendor="X.Org Foundation"
compiled for 6.8.2, module version = 1.0.0
Module class: X.Org XInput Driver
ABI class: X.Org XInput driver, version 0.4
(**) Mouse0: Device: "/dev/input/mice"
(**) Mouse0: Protocol: "IMPS/2"
(**) Option "CorePointer"
(**) Mouse0: Core Pointer
(**) Option "Device" "/dev/input/mice"
(**) Option "Emulate3Buttons" "yes"
(**) Mouse0: Emulate3Buttons, Emulate3Timeout: 50
(**) Option "ZAxisMapping" "4 5"
(**) Mouse0: ZAxisMapping: buttons 4 and 5
(**) Mouse0: Buttons: 5
(II) XINPUT: Adding extended input device "Mouse0" (type: MOUSE)
(II) Mouse0: ps2EnableDataReporting: succeeded
SetGrabKeysState - disabled
SetGrabKeysState - enabled


Biplab Bijay

The log is ok. It looks like you still use the Emulate3Buttons option but I don't think this is the reason for the problem with the mouse wheel.
Could you try the evdev driver if it's available for your distro?
Run (as root):
and if it not complain, make a backup of xorg.conf and edit it using
replacing the respective lines in mouse section.
Mind that X is a number and you can find it by running:
In my case the above command gives:
so X in my case is 4 and the above line in my xorg.conf reads "Option "Device" "/dev/input/event4""

Hi,

Be sure that at the top of your 'xorg.conf' you have;

Then look at;

Your 'xorg.conf' should have something close to the above.

Hi bathory when i type the "modprobe evdev" as root it says "bash: modprobe: command not found".I will try to install that driver.Can you send me a link from where i can get it ?

Hi Gary the top of my xorg.conf file looks like this

Should I replace "single head configuration" by "X.org Configured" in the second line ?

I hvae tried the following options also.



But the problem remains as it was.

Biplab Bijay