-
Touchpad Control
There are two drawbacks to using a laptop: the touchpad and the touchpad.
First, you are typing something and the touchpad decides you've tapped in the secret code for "destroy, destroy, frustration is irrelevant" and whatever it was you were doing is gone.
Second, this still happens even though you've plugged in an external mouse and aren't using the touchpad at all.
The route to solving the first problem is through syndaemon and the route to solving the second is through synclient. Both are command line apps already installed in Knoppix (6.4.4. at least).
To get the right settings automatically when Knoppix start-ups you need an additional script in /etc/X11/Xsession.d and to get the settings to change automagically when you plug-in or unplug a USB mouse, you need to add an extra pair of rules to /etc/udev/rules.d.
There are examples of how to do this out there but they usually start with someone complaining what used to work has stopped and could they crib a new solution from someone who has already done all the hard work.
Seems Knoppix is no exception and none of the solutions out there work. Seems xhost + is missing somewhere for sentimental reasons or perhaps Knoppix is just using a very new X server with new and improved security (the kind that got Windows Vista such a bad name).
Here's my take on this:
Code:
# /etc/udev/rules.d/75-touchpad.rules
# Disable touchpad when USB mouse is plugged in and reenable when USB mouse is removed
ACTION=="add", SUBSYSTEM=="input", ENV{ID_INPUT_MOUSE}=="1", RUN+="/etc/X11/Xsession.d/50touchpad 1"
ACTION=="remove", SUBSYSTEM=="input", ENV{ID_INPUT_MOUSE}=="1", RUN+="/etc/X11/Xsession.d/50touchpad 0"
# EOF
and
Code:
#!/bin/sh
# /etc/X11/Xsession.d/50touchpad
if pidof X >/dev/null; then
# Turn touchpad off when a USB mouse is present
pidfile=/var/run/syndaemon.pid;
if [ -n "${XAUTHORITY}" ]; then
# Xsession initialisation
if lsusb -v 2>/dev/null | grep -qF Mouse; then
synclient TouchpadOff=1;
else
syndaemon -d -t -k -p $pidfile;
fi
else
# udev hotplug event
DISPLAY=":0";
USER=$(who | awk "/ $DISPLAY /"'{print $1}');
XAUTHORITY=/home/$USER/.Xauthority;
export DISPLAY XAUTHORITY;
synclient TouchpadOff=$1;
if [ "$1" -eq 1 ]; then
[ -f $pidfile ] && kill $(cat $pidfile);
[ -f $pidfile ] && sync;
else
[ ! -f $pidfile ] && syndaemon -d -t -k -p $pidfile;
[ ! -f $pidfile ] && sync;
fi
fi
fi
# EOF
The second must be executable as it is called by the rules in the first.
Enjoy.
Last edited by Forester; 03-17-2011 at 11:30 PM.
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
-
Forum Rules
1U BareMetal pfsense opnsense Router Firewall DNS Server 6x 10GB Ethernet Ports
$149.00
1U Supermicro Server 10 Bay 2x Intel Xeon 3.3Ghz 8C 128GB RAM 480GB SSD 2x 10GBE
$273.00
Firesale HP Microserver G8 4x LFF HDs 16gb RAM 256gb SDD Os Drive
$99.00
HP ProLiant MicroServer Gen10 8GB RAM TPS-F022
$189.99
SuperMicro Server 505-2 Intel Atom 2.4GHz 8GB RAM SYS-5018A-FTN4 1U Rackmount
$197.99
HPE ProLiant MicroServer Gen10 Plus v2 Ultra Micro Tower Server - 1 x Intel Xeon
$846.48
Supermicro CSE-825-7 X10DRW-i 2 Xeon E5-2667v4 3.2GHz SAS3 2U One Power Supply
$209.75
Supermicro CSE 823-6 2U 6 Bay Chassis ,1xPWS 653-2H 650Wsold as in the photo,
$119.75
Supermicro 1U X11DPU 2x Xeon Gold 6132 2.6GHz / 128gb / 10x 2.5 Trays / 2x 750w
$649.99
2U 12 Bay SAS3 SuperMicro Server 6028U-TR4T+ W/ X10DRU-i+ Barebone 12 Caddy RAIL
$299.00