Arch Linux

<txt

Member

Registered: 2012-11-25

Posts: 4

[SOLVED]Can't enable touchpad in dell latitude D420!

System: archlinux 32 bit + kde
Keyboard layout: dell latitude french
Problem: The (Synapstic)touchpad was disabled after I pressed "Fn + left", but in  latitude D420, the "Fn + left" is "auto adjust brightness", not "disable  touchpad"!
Now I can't use my touchpad anymore! In the kdm login page everything goes fine, but after kde loaded the settings, the touchpad was disabled!
Can anyone please help me?

[SOLVED]
Disable a service "Active/disactive Touchpad" in the system settings.

Last edited by <txt (2013-03-19 18:36:47)

Antoine

Member

From: Picton Ontario

Registered: 2012-10-11

Posts: 90

Re: [SOLVED]Can't enable touchpad in dell latitude D420!

There's a Wiki entry (of course); but make sure that

MatchIsTouchpad "on"

is in your /etc/X11/xorg.conf.d/50-synaptics.conf

<txt

Member

Registered: 2012-11-25

Posts: 4

Re: [SOLVED]Can't enable touchpad in dell latitude D420!

There's a Wiki entry (of course); but make sure that

MatchIsTouchpad "on"

is in your /etc/X11/xorg.conf.d/50-synaptics.conf

Here is my synaptic.conf:

Section "InputClass"
        Identifier "touchpad catchall"
        Driver "synaptics"
        MatchIsTouchpad "on"
        Option "TapButton1" "1"
        Option "TapButton2" "2"
        Option "TapButton3" "3"
# This option is recommend on all Linux systems using evdev, but cannot be
# enabled by default. See the following link for details:
# http://who-t.blogspot.com/2010/11/how-to-ignore-configuration-errors.html
        MatchDevicePath "/dev/input/event*"
EndSection

Section "InputClass"
        Identifier "touchpad ignore duplicates"
        MatchIsTouchpad "on"
        MatchOS "Linux"
        MatchDevicePath "/dev/input/mouse*"
        Option "Ignore" "on"
EndSection

# This option enables the bottom right corner to be a right button on
# non-synaptics clickpads.
# This option is only interpreted by clickpads.
Section "InputClass"
        Identifier "Default clickpad buttons"
        MatchDriver "synaptics"
        Option "SoftButtonAreas" "50% 0 82% 0 0 0 0 0"
#       To disable the bottom edge area so the buttons only work as buttons,
#       not for movement, set the AreaBottomEdge
#       Option "AreaBottomEdge" "82%"
EndSection

# This option disables software buttons on Apple touchpads.
# This option is only interpreted by clickpads.
Section "InputClass"
        Identifier "Disable clickpad buttons on Apple touchpads"
        MatchProduct "Apple|bcm5974"
        MatchDriver "synaptics"
        Option "SoftButtonAreas" "0 0 0 0 0 0 0 0"
EndSection

I think the problem is caused by some KDE touchpad settings but I can't find it.
even after
$mv ~/.kde4 ~/.kde4.old
reboot
nothing changed.

$cat /proc/bus/input/devices
shows the TouchPad and Point Stick, but only the Point Stick working under KDE.

I: Bus=0011 Vendor=0002 Product=0008 Version=0000
N: Name="DualPoint Stick"
P: Phys=isa0060/serio1/input1
S: Sysfs=/devices/platform/i8042/serio1/input/input8
U: Uniq=
H: Handlers=mouse1 event8 
B: PROP=0
B: EV=7
B: KEY=70000 0 0 0 0 0 0 0 0
B: REL=3

I: Bus=0011 Vendor=0002 Product=0008 Version=6337
N: Name="AlpsPS/2 ALPS DualPoint TouchPad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input9
U: Uniq=
H: Handlers=mouse2 event9 
B: PROP=0
B: EV=b
B: KEY=420 0 70000 0 0 0 0 0 0 0 0
B: ABS=1000003

Last edited by <txt (2013-03-19 17:23:43)