Touchpad problems?
To change the behavior of the Synaptics/Alps
touch pad, use Control Panel - Desktop - Adjust Touch Pad. If Adjust Touch Pad errors when you launch it, your
touch pad is probably not supported yet.
If Control Panel - Desktop - Adjust Touch Pad
doesn't offer the option you want to adjust, you can do it
manually by editing /usr/X11R7/lib64/X11/xorg.conf.d/50-synaptics.conf.
By default that file contains this:
Section "InputClass"
Identifier "touchpad
catchall"
Driver "synaptics"
MatchIsTouchpad "on"
MatchDevicePath
"/dev/input/event*"
Option "TapButton1" "1"
Option "TapButton2" "2"
Option "TapButton3" "3"
Option "MaxTapTime" "0"
EndSection
After editing this file you must restart the X server for
changes to take effect.
Here’s a
couple popular options to adjust :
Option "MaxTapTime" "0"
This option sets the touch to tap behavior. Setting
this to 0 disables touch to tap (which is the default). If you
want touch to tap on, change this to 125 to start with and
adjust as needed.
Option
"AccelFactor" "0.030" This option sets how fast the
mouse moves as you drag your finger across the pad. A smaller
number is slower, a bigger number is faster.
By default "tap-to-click" is disabled as some touchpads are overly sensitive,
making the system impossible to use if it is left on. To turn it back on:
- Open Adjust Touchpad control from within Control Panel (under Desktop tab)
- Go to the "tapping" tab
- Use the "One Finger" pull down menu to select "left button".
- Then click save and quit.
To enable vertical scrolling, open Adjust Touchpad as above,
then go to "Scrolling" tab and check "Vertical Edge Scroll" and uncheck all the others.
If you need other configuration options take
a look at the man page for Synaptics.