From b152ebf4b66368e1cbfda1ae81cef29bf9c00bb7 Mon Sep 17 00:00:00 2001 From: marha Date: Thu, 14 Jan 2010 10:44:09 +0000 Subject: Git update 14/1/2010 --- xorg-server/hw/xfree86/doc/man/xorg.conf.man.pre | 67 +++++++++++++++++++++++- 1 file changed, 66 insertions(+), 1 deletion(-) (limited to 'xorg-server/hw/xfree86/doc') diff --git a/xorg-server/hw/xfree86/doc/man/xorg.conf.man.pre b/xorg-server/hw/xfree86/doc/man/xorg.conf.man.pre index 5b98bda63..222530b41 100644 --- a/xorg-server/hw/xfree86/doc/man/xorg.conf.man.pre +++ b/xorg-server/hw/xfree86/doc/man/xorg.conf.man.pre @@ -914,7 +914,72 @@ X Input extension. This option controls the startup behavior only, a device may be reattached or set floating at runtime. .TP 7 .BI "Option \*qSendDragEvents\*q \*q" boolean \*q -??? +Send core events while dragging. Enabled by default. +.PP +For pointing devices, the following options control how the pointer +is accelerated or decelerated with respect to physical device motion. Most of +these can be adjusted at runtime, see the xinput(1) man page for details. Only +the most important acceleration options are discussed here. +.TP 7 +.BI "Option \*qAccelerationProfile\*q \*q" integer \*q +Select the profile. In layman's terms, the profile constitutes the "feeling" of +the acceleration. More formally, it defines how the transfer function (actual +acceleration as a function of current device velocity and acceleration controls) +is constructed. This is mainly a matter of personal preference. +.PP +.RS 6 +.nf +.B " 0 classic (mostly compatible)" +.B "-1 none (only constant deceleration is applied)" +.B " 1 device-dependent" +.B " 2 polynomial (polynomial function)" +.B " 3 smooth linear (soft knee, then linear)" +.B " 4 simple (normal when slow, otherwise accelerated)" +.B " 5 power (power function)" +.B " 6 linear (more speed, more acceleration)" +.B " 7 limited (like linear, but maxes out at threshold)" +.fi +.RE +.TP 7 +.BI "Option \*qConstantDeceleration\*q \*q" real \*q +Makes the pointer go +.B deceleration +times slower than normal. Most useful for high-resolution devices. +.TP 7 +.BI "Option \*qAdaptiveDeceleration\*q \*q" real \*q +Allows to actually decelerate the pointer when going slow. At most, it will be +.B adaptive deceleration +times slower. Enables precise pointer placement without sacrificing speed. +.TP 7 +.BI "Option \*qAccelerationScheme\*q \*q" string \*q +Selects the scheme, which is the underlying algorithm. +.PP +.RS 7 +.nf +.B "predictable default algorithm (behaving more predictable)" +.B "lightweight old acceleration code (as specified in the X protocol spec)" +.B "none no acceleration or deceleration" +.fi +.RE +.TP 7 +.BI "Option \*qAccelerationNumerator\*q \*q" integer \*q +.TP 7 +.BI "Option \*qAccelerationDenominator\*q \*q" integer \*q +Set numerator and denominator of the acceleration factor. The acceleration +factor is a rational which, together with threshold, can be used to tweak +profiles to suit the users needs. The +.B simple +and +.B limited +profiles use it directly (i.e. they accelerate by the factor), for other +profiles it should hold that a higher acceleration factor leads to a faster +pointer. Typically, 1 is unaccelerated and values up to 5 are sensible. +.TP 7 +.BI "Option \*qAccelerationThreshold\*q \*q" integer \*q +Set the threshold, which is roughly the velocity (usually device units per 10 +ms) required for acceleration to become effective. The precise effect varies +with the profile however. + .SH "INPUTCLASS SECTION" The config file may have multiple .B InputClass -- cgit v1.2.3