153 lines
5.1 KiB
Plaintext
153 lines
5.1 KiB
Plaintext
Synaptics touchpad driver for X.Org
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-----------------------------------
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FAQ
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---
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* Is this free software?
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Yes, the source code is released under the MIT license.
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* When will the driver be included in the XOrg distribution?
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It is already.
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* How do I use this driver with Linux kernel 2.6.x?
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You need to have the "evdev" driver loaded or compiled into the
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kernel (CONFIG_INPUT_EVDEV). Set the "Protocol" parameter in the X
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configuration file to "auto-dev". Also, if you set the "Device"
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parameter to "/dev/psaux", the same X configuration file should
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work for a 2.4.x kernel.
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When configuring the kernel, enable PS/2 mouse support
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(CONFIG_MOUSE_PS2).
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* It still doesn't work with a 2.6 kernel.
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Some distributions come with an incomplete /dev directory. The
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driver needs the /dev/input/eventX device nodes. Try to create
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them manually if they don't exist already. (Look at
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/proc/bus/input/devices to figure out how many nodes you need.)
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# mknod /dev/input/event0 c 13 64
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# mknod /dev/input/event1 c 13 65
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# mknod /dev/input/event2 c 13 66
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...
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* How can I configure tap-to-click behavior?
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If you set MaxTapTime=0 in the X config file then the touchpad
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will not use tapping at all, i.e. touching/tapping will not be
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taken as a mouse click.
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If, instead, you set MaxTapMove=0 in the X config file, then the
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touchpad will not use tapping for a single finger tap (left mouse
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button click) but will for the two and three finger tap (middle
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and right button click).
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* Why did tap-to-click stop working after I upgraded from an old version?
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Time is now measured in milliseconds instead of "number of
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packets". In practice, this means that if you are upgrading from
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an old version, you need to change MaxTapTime and
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EmulateMidButtonTime to make "tap to click" work. Good values are
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180 and 75 respectively.
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* Gnome scrollbars scroll too much when using tap-to-click. Why?
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The ClickTime parameter is probably too big. Try setting it to
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100. Gnome scrollbars use auto repeat, ie if you press the left
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mouse button and keep it pressed, the scroll bar will move until
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you release the button. This will lead to problems if the tap time
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is longer than the delay before auto repeat starts.
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* Vertical and horizontal scrolling events are mixed up. How come?
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Probably because some X startup/login script uses xmodmap to remap
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the mouse buttons. Correct settings for the touchpad are:
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xmodmap -e 'pointer = 1 2 3 4 5 6 7'
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You can check the current settings by running:
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xmodmap -pp
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* Horizontal scrolling doesn't work in some programs. Is it a driver
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bug?
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No, probably not. Support for horizontal scroll events must be
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handled by the application programs. Not all programs do that
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yet. Ask the authors of the application in question to implement
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support for horizontal scroll events.
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You can use the "xev" program to check if the synaptics driver
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generates the horizontal scroll events.
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If you are having problems with Mozilla, try this link:
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http://lists.debian.org/debian-laptop/2004/08/msg00167.html
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* Can the driver be used together with gpm?
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No, not reliably, if you are using a 2.4.x kernel. The gpm driver
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and the X driver both try to read data from the touchpad, and if
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they try to read at the same time, both drivers see incomplete
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data and don't know how to interpret it.
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If you are running a 2.6.x kernel though, there should be no
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conflict, because the kernel driver will make sure both user space
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drivers receive all events from the touchpad.
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* Can I use this driver with an ALPS Glidepoint device?
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Yes, see the README.alps file for more information.
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* The driver says "reset failed" and the touchpad doesn't work. What
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can I do?
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This problem has been reported for some Compaq models. It's
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currently not known why it happens, but removing the reset command
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from the driver appears to make it work. If you use a 2.4 linux
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kernel, replace the contents of the ps2_synaptics_reset() function
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in ps2comm.c with a "return TRUE;" statement. If you use a 2.6
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linux kernel, remove the while loop in synaptics_query_hardware()
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in the file drivers/input/mouse/synaptics.c in the linux kernel
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source code.
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Authors
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-------
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Many people have contributed to this driver. Look at the top of
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synaptics.c and ps2comm.c for details.
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The current maintainer is Christoph Brill <egore911@egore911.de>.
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Contacts
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--------
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All questions regarding this software should be directed at the
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Xorg mailing list:
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http://lists.freedesktop.org/mailman/listinfo/xorg
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Please submit bug reports to the Xorg bugzilla:
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https://bugs.freedesktop.org/enter_bug.cgi?product=xorg
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The master development code repository can be found at:
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git://anongit.freedesktop.org/git/xorg/driver/xf86-input-synaptcis
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http://cgit.freedesktop.org/xorg/driver/xf86-input-synaptcis
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For patch submission instructions, see:
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http://www.x.org/wiki/Development/Documentation/SubmittingPatches
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For more information on the git code manager, see:
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http://wiki.x.org/wiki/GitPage
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