Sujet : Need Help With Libinput
De : lt (at) *nospam* gnu.rocks (Lester Thorpe)
Groupes : alt.os.linux comp.os.linux.miscDate : 02. Jul 2024, 21:28:22
Autres entêtes
Organisation : UsenetExpress - www.usenetexpress.com
Message-ID : <17de7c0ce189fbc8$526471$1616079$802601b3@news.usenetexpress.com>
I desire a relatively slow pointing device (i.e. mouse) motion,
but with the now mandatory (i.e. no choice) libinput driver
under X Window I have a hard time understanding how to configure
the motion.
Using "xinput list" I discover that my pointing device is
device id=8.
Thus:
xinput list-props 8
...
...
Device 'PixArt Microsoft USB Optical Mouse':
Device Enabled (155): 1
Coordinate Transformation Matrix (157): 0.400000, 0.000000, 0.000000, 0.000000, 0.400000, 0.000000, 0.000000, 0.000000, 1.000000
...
...
The motion is apparently controlled by this "transformation
matrix," which seems to be 3x3 in size.
As seen above, I have what I assume to be the x and y motion
set to 0.4.
This does indeed slow the motion down.
But what do the rest of the values accomplish?
I can find no documentation on this issue. If someone can
provide links or a description it would be appreciated.