linux-kernel - [BUG] [input] Sometimes mouse gets detected as PS2++ Logitech Mouse instead of ImPS/2 Logitech Wheel Mouse

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Date:	Fri, 12 Jun 2009 08:35:06 +0200
From:	Paul Menzel <paulepanter@...rs.sourceforge.net>
To:	linux-kernel@...r.kernel.org
Subject: [BUG] [input] Sometimes mouse gets detected as PS2++ Logitech
 Mouse instead of ImPS/2 Logitech Wheel Mouse

Dear Linux hackers,


arbitrarily (I would say every two month) my Logitech Cordless MouseMan
Wheel gets detected as (in dmesg)

PS2++ Logitech Mouse

instead of

ImPS/2 Logitech Wheel Mouse.

I notice this, if the scroll wheel does not work under X. Doing `sudo
rmmod psmouse` and `sudo modprobe psmouse` fixes the issue for me in
this (boot) session.

I have not found the reason for this and am not able to reproduce this.
As written this issue pops up arbitrarily.

$ uname -a
Linux x 2.6.29-1-amd64 #1 SMP Fri Apr 17 16:26:42 UTC 2009 x86_64 GNU/Linux

$ lsmod | grep mouse
psmouse                41548  0

$ dmesg # excerpt
[…]
[    1.021991] input: Macintosh mouse button emulation as /devices/virtual/input/input0
[    1.022270] PNP: PS/2 Controller [PNP0303:PS2K,PNP0f03:PS2M] at 0x60,0x64 irq 1,12
[    1.022734] serio: i8042 KBD port at 0x60,0x64 irq 1
[    1.022797] serio: i8042 AUX port at 0x60,0x64 irq 12
[    1.028167] mice: PS/2 mouse device common for all mice
[…]
[   25.007328] input: PC Speaker as /devices/platform/pcspkr/input/input5
[   25.754932] input: PS2++ Logitech Mouse as /devices/platform/i8042/serio1/input/input6
[…]
# after doing `sudo rmmod psmouse` and `sudo modprobe psmouse`
[ 1159.636233] input: ImPS/2 Logitech Wheel Mouse as /devices/platform/i8042/serio1/input/input7

$ diff -u /var/log/Xorg.0.log.old /var/log/Xorg.0.log | less # old is the “good” version with scroll wheel working

(**) Macintosh mouse button emulation: (accel) filter chain progression: 2.00
 (**) Macintosh mouse button emulation: (accel) filter stage 0: 20.00 ms
 (**) Macintosh mouse button emulation: (accel) set acceleration profile 0
-(II) config/hal: Adding input device ImPS/2 Logitech Wheel Mouse
-(**) ImPS/2 Logitech Wheel Mouse: always reports core events
-(**) ImPS/2 Logitech Wheel Mouse: Device: "/dev/input/event6"
-(II) ImPS/2 Logitech Wheel Mouse: Found 3 mouse buttons
-(II) ImPS/2 Logitech Wheel Mouse: Found x and y relative axes
-(II) ImPS/2 Logitech Wheel Mouse: Found scroll wheel(s)
-(II) ImPS/2 Logitech Wheel Mouse: Configuring as mouse
-(**) ImPS/2 Logitech Wheel Mouse: YAxisMapping: buttons 4 and 5
-(**) ImPS/2 Logitech Wheel Mouse: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
-(II) XINPUT: Adding extended input device "ImPS/2 Logitech Wheel Mouse" (type: MOUSE)
-(**) ImPS/2 Logitech Wheel Mouse: (accel) keeping acceleration scheme 1
-(**) ImPS/2 Logitech Wheel Mouse: (accel) filter chain progression: 2.00
-(**) ImPS/2 Logitech Wheel Mouse: (accel) filter stage 0: 20.00 ms
-(**) ImPS/2 Logitech Wheel Mouse: (accel) set acceleration profile 0
+(II) config/hal: Adding input device PS2++ Logitech Mouse
+(**) PS2++ Logitech Mouse: always reports core events
+(**) PS2++ Logitech Mouse: Device: "/dev/input/event6"
+(II) PS2++ Logitech Mouse: Found 3 mouse buttons
+(II) PS2++ Logitech Mouse: Found x and y relative axes
+(II) PS2++ Logitech Mouse: Configuring as mouse
+(**) PS2++ Logitech Mouse: YAxisMapping: buttons 4 and 5
+(**) PS2++ Logitech Mouse: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
+(II) XINPUT: Adding extended input device "PS2++ Logitech Mouse" (type: MOUSE)
+(**) PS2++ Logitech Mouse: (accel) keeping acceleration scheme 1
+(**) PS2++ Logitech Mouse: (accel) filter chain progression: 2.00
+(**) PS2++ Logitech Mouse: (accel) filter stage 0: 20.00 ms
+(**) PS2++ Logitech Mouse: (accel) set acceleration profile 0
 (II) config/hal: Adding input device AT Translated Set 2 keyboard
 (**) AT Translated Set 2 keyboard: always reports core events
 (**) AT Translated Set 2 keyboard: Device: "/dev/input/event1"


Do you know what could causing this? If I can provide more information,
just tell me what.


Thanks,

Paul

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