Touchscreen usage
H.S.Rai
hardeep.rai at gmail.com
Thu Mar 8 06:49:43 UTC 2012
On Thu, Mar 8, 2012 at 8:15 AM, H.S.Rai <hardeep.rai at gmail.com> wrote:
>
> Ububtu identify it as:
> IDEACO IDC 6681
> and driver used is : EVDEV
After a lot of struggle, I could get it working, nearly OK for large icons.
Use command were:
xinput set-int-prop 10 "Evdev Axis Inversion" 8 1 1
xinput set-int-prop 10 "Evdev Axis Calibration" 32 1000 7000 1800 6500
Try tried to extract relationship among calibration parameters, finger
position, and cursor position, but could not.
At present xinput_calibrator through following output (complete output
is below signature):
new calibration data: -993, 65311, -2026, 65043
If I use this, touch screen don't work. I could not see any
relationship between worked parameters and result xinput_calibrator.
But I need to know this to fine tune calibration.
Can anyone tell me significance of these parameters. I tried to test
my math skill and tried relationship like
CursorX = A + B x FingerX
CursorY = C + D x FingerY
Assuming A, B, C and D will be calibration parameters. But I could not
arrive at any result.
If this not the right place to discuss this, I may be guided to some
other mailing list / forum, where I can get answer to this.
With regards,
--
H.S.Rai
Warning: multiple calibratable devices found, calibrating last one
(IDEACO IDC 6681)
use --device to select another one.
Calibrating EVDEV driver for "IDEACO IDC 6681" id=11
current calibration values (from XInput): min_x=0, max_x=65535 and
min_y=0, max_y=65535
Doing dynamic recalibration:
Setting new calibration data: -993, 65311, -2026, 65043
--> Making the calibration permanent <--
copy the snippet below into '/etc/X11/xorg.conf.d/99-calibration.conf'
Section "InputClass"
Identifier "calibration"
MatchProduct "IDEACO IDC 6681"
Option "Calibration" "-993 65311 -2026 65043"
More information about the ubuntu-users
mailing list