Touchpad does not work

What is the full model of the system please?
Can you also give the output of:

cat /etc/lsb-release; uname -a

Thanks

Laya, would you also, please, give us the output of:
cat /proc/bus/input/devices

Thanks

My laptop model is Samsung Series 3 NP300V5A-S05IN.
I am not able to understand as to what to do with the above commands. I tried them in the terminal and the result is "No such file or directory". Is there anything else to do??
Thanks

copy the command and paste to a terminal and it will give output. copy the output and paste here as an update

thanks

The result of the first command (cat /etc/lsb-release; uname -a) is as follows:
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=11.10
DISTRIB_CODENAME=oneiric
DISTRIB_DESCRIPTION="Ubuntu 11.10"
Linux laya-300V3A-300V4A-300V5A 3.0.0-12-generic #20-Ubuntu SMP Fri Oct 7 14:50:42 UTC 2011 i686 i686 i386 GNU/Linux

The result of the second command (cat /proc/bus/input/devices) is as follows:
I: Bus=0019 Vendor=0000 Product=0005 Version=0000
N: Name="Lid Switch"
P: Phys=PNP0C0D/button/input0
S: Sysfs=/devices/LNXSYSTM:00/device:00/PNP0C0D:00/input/input0
U: Uniq=
H: Handlers=event0
B: PROP=0
B: EV=21
B: SW=1

I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=PNP0C0C/button/input0
S: Sysfs=/devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input1
U: Uniq=
H: Handlers=kbd event1
B: PROP=0
B: EV=3
B: KEY=100000 0 0 0

I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=LNXPWRBN/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXPWRBN:00/input/input2
U: Uniq=
H: Handlers=kbd event2
B: PROP=0
B: EV=3
B: KEY=100000 0 0 0

I: Bus=0011 Vendor=0001 Product=0001 Version=ab41
N: Name="AT Translated Set 2 keyboard"
P: Phys=isa0060/serio0/input0
S: Sysfs=/devices/platform/i8042/serio0/input/input3
U: Uniq=
H: Handlers=sysrq kbd event3
B: PROP=0
B: EV=120013
B: KEY=500f 2000403 3803078 f870d001 feffffdf fbefffff ffffffff fffffffe
B: MSC=10
B: LED=7

I: Bus=0019 Vendor=0000 Product=0006 Version=0000
N: Name="Video Bus"
P: Phys=LNXVIDEO/video/input0
S: Sysfs=/devices/LNXSYSTM:00/device:00/PNP0A08:00/device:2c/LNXVIDEO:00/input/input4
U: Uniq=
H: Handlers=kbd event4
B: PROP=0
B: EV=3
B: KEY=3e000b 0 0 0 0 0 0 0

I: Bus=0019 Vendor=0000 Product=0006 Version=0000
N: Name="Video Bus"
P: Phys=LNXVIDEO/video/input0
S: Sysfs=/devices/LNXSYSTM:00/device:00/PNP0A08:00/LNXVIDEO:01/input/input5
U: Uniq=
H: Handlers=kbd event5
B: PROP=0
B: EV=3
B: KEY=3e000b 0 0 0 0 0 0 0

I: Bus=0003 Vendor=2232 Product=1008 Version=0019
N: Name="WebCam SCB-1100N"
P: Phys=usb-0000:00:1a.0-1.4/button
S: Sysfs=/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/input/input6
U: Uniq=
H: Handlers=kbd event6
B: PROP=0
B: EV=3
B: KEY=100000 0 0 0 0 0 0

I: Bus=0011 Vendor=0002 Product=000e Version=0000
N: Name="ETPS/2 Elantech Touchpad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input7
U: Uniq=
H: Handlers=mouse0 event7
B: PROP=8
B: EV=b
B: KEY=6420 0 30000 0 0 0 0 0 0 0 0
B: ABS=2608000 11000003

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH HDMI/DP,pcm=3"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input8
U: Uniq=
H: Handlers=event8
B: PROP=0
B: EV=21
B: SW=100

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH Mic"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input9
U: Uniq=
H: Handlers=event9
B: PROP=0
B: EV=21
B: SW=10

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="HDA Intel PCH Headphone"
P: Phys=ALSA
S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input10
U: Uniq=
H: Handlers=event10
B: PROP=0
B: EV=21
B: SW=4

Hope this helps. Thanks.

Have you tried to press Fn+F3, does this enable it?

Yep. Tried Fn+F3. Does not work!!!

laya, please run:
sudo modprobe -r psmouse; sleep 2; sudo modprobe psmouse
does this enable it?
also, can you use the System Monitor to look if there's 2 instances(processes) of 'syndaemon', if so, kill one of them, and see what happens.
Hope it helps.

The command does not enable it. The 'syndaemon' process is present only once. There is only 1 instance. However, I noticed that the status of the process is 'sleeping'. Does that mean anything??

Try the boot option:

i8024.nopnp

or

i8024.reset

or

irqpoll

May help