Bug#679750: Lenovo G360: ALPS Touchpad Recognized as "PS/2 Generic Mouse"(with newly dmesg information)

Hi,

Because linux-input@vger.kernel.org is a mail list, I must register to
it for sending bug report. So all the posts about this bug sent to it
before had never reach it. I re-organize the text and report this bug to
linux-input@vger.kernel.org again when post my newly demsg information
under a recompiled 3.4 kernel with added "#DEFINE DEBUG" to the top of
"drivers/input/mouse/alps.c" adviced by seth.forshee@canonical.com. 

I think I am reporting a kernel bug about ALPS touchpad on Lenovo
G360.

This bug was reported at
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=679750 first.

My lenovo G360 has an ALPS touchpad, shows in Windows 7 Home Editition
OEM in this laptop. Under Debian Squeeze and Ubuntu 12.04 LTS LiveCD in
same laptop, the left and right key, single and double tap, tracking  of
touchpad works well. But, there isn't touchpad tab in gnome mouse
setting dialog, so I can't setup edge scrolling and disable touchpad on
typing. xinput shows it is a "PS/2 Generic Mouse". 

I have tried kernels 2.6.32-45, 3.2.4-1~bpo60+1,
3.4.4-1~experimental.1 under Debian Squeeze and kernel 3.2 under
Ubuntu 12.04 LTS LiveCD on this Lenovo G360 laptop. None of these four
kernels can configure a full functional ALPS touchpad. There are
same syptoms under all of these four kernels: 

1, "synclient -l" shows "Couldn't find synaptics properties. No
synaptics driver loaded? " 
2, "xinput --list" shows it is a "PS/2 Generic Mouse" 
3, "cat /proc/bus/input/devices" shows it is "N: Name="PS/2 Generic
Mouse"" 
4, Can't find any string like "touchpad", "synaptics" in
"/var/log/Xorg.0.log" 
5, There isn't touchpad tab in gnome mouse setting dialog, so I can't
setup edge scrolling and disable touchpad on typing. 

Under the kernel 3.2.4-1~bpo60+1 on Debian Squeeze, I have tried many
ways to fix this problem, but no lucky. The ways I tried such as:
1, add "psmouse.proto=imps(or exps)" into kernel parameters;
2, add file "etc/X11/xorg.d/10-synaptics.conf", the content as below:
Section "InputClass"
    Identifier      "touchpad catchall"
    Driver          "synaptics"
    MatchIsTouchpad "on"
    MatchDevicePath "/dev/input/event*"
    Option          "SHMConfig" "on"
    Option          "TapButton1" "1"
    Option          "TapButton2" "2"
    Option          "TapButton3" "3"
    Option          "VertTwoFingerScroll" "on"
    Option          "HorizTwoFingerScroll" "on"
EndSection
3, Thanks to the help of "How to disable Alps touchpad while typing or
when using an external mouse in Linux" at:
http://www.imega.cz/Linux-Alps-Touchpad-Dell-E6410/Linux-Alps-touchpad-disable.php
I resolved the problem of "disable touchpad on typing" by using a
python script, but I can't make edge scrolling work yet. 
According to the advice of the page above, I downloaded
linux-source-3.2, and applied patch at
"https://patchwork.kernel.org/patch/118834/ ": patch name:
Resend-Add-support-for-Intellimouse-Mode-in-ALPS-touchpad-on-Dell-E2-series-Laptops.patch,
see attachment), I have not used cat *.patch | patch -p1, just copy the
modified code into linux-source-3.2 and recompile psmouse.ko. But no
lucky, edge scrolling still can't work.
4, etc..

There are six attachments in this report.
Note: All of them got under running recompiled linux_3.4.4.orig.tar.xz
source on Debian Squeeze, compiled kernel linux_3.4.4.orig.tar.xz
source without pacthing debian pacthes under kernel 3.2.4-1~bpo60+1,I
don't know how to patch them. I added "#define DEBUG" to the top of
"drivers/input/mouse/alps.c" of source of kernel
linux_3.4.4.orig.tar.xz. according to the advice at
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=679750#78 
The kernel downloaded from:
http://snapshot.debian.org/archive/debian/20120626T221453Z/pool/main/l/linux/linux_3.4.4.orig.tar.xz

1, output of command "xinput list--long": xinputlist.txt 
2, output of command "cat /proc/bus/input/devices": inputdevices.txt
3, /var/log/Xorg.0.log: Xorg.0.log 
4, output of command "dmesg": dmesg.txt 
5, output of command "for file in /sys/class/dmi/id/*; do if [ -f
"$file" -a -r "$file" ]; then echo $file: `cat $file` ; fi; done":
DMI.txt 
6, kernel config file, borrowed from
linux-image-3.4-trunk-amd64_3.4.4-1~experimental.1_amd64.deb:
config-3.4.4debugpsmouse

I found these lines in my dmesg information:
[   19.995850] psmouse serio4: alps: E6 report: 00 00 64
[   20.021288] psmouse serio4: alps: E7 report: 73 03 50
[   20.623609] input: PS/2 Generic Mouse
as /devices/platform/i8042/serio4/input/input9

Tell me If need more detail information.

Thanks.