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how to change the touch area #193

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19504643 opened this issue Dec 21, 2021 · 4 comments
Open

how to change the touch area #193

19504643 opened this issue Dec 21, 2021 · 4 comments

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@19504643
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I'm using a 4.3 inch 800*480 LCD and 12 bit touch chip, now only a very small area can get the cursor to move, and the ts_calibration not working, how to change the touch area to the full screen

./ts_calibrate
xres = 800, yres = 480

when I run ts_test, touch the upper left corner and lower right corner, it returns minimum and maximum value, but the tslib only get the value from 0 to 800 in horizontal and 0 to 480 in vertical.

./ts_test
3867.380129:    220    379    255
3867.400118:    217    374    255
3867.420121:    215    389    255
3870.300119:   3892   3759    255
3870.310131:   3898   3765    255
3870.330114:   3903   3768    255

here is the conf:

cat ../etc/ts.conf
# Access plugins
################

# Uncomment if you wish to use the linux input layer event interface
module_raw input

# For other driver modules, see the ts.conf man page


# Filter plugins
################

# Uncomment if first or last samples are unreliable
# module skip nhead=1 ntail=1

# Uncomment if needed for devices that measure pressure
module pthres pmin=1

# Uncomment if needed
# module debounce drop_threshold=40

# Uncomment if needed to filter spikes
# module median depth=5

# Uncomment to enable smoothing of fraction N/D
# module iir N=6 D=10

# Uncomment if needed
# module lowpass factor=0.1 threshold=1

# Uncomment if needed to filter noise samples
module dejitter delta=100

# Uncomment to define threshold in number of events from device
# module evthres N=5

# Uncomment and adjust if you need to invert an axis or both
# module invert x0=800 y0=480

# Uncomment to use ts_calibrate's settings
module linear

1

@iqbal-em
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Hello, How are you ? I have same issue like you. Have you already solve the problem?

Thanks

@yifanshu02
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hello,how r u? i have same issue like you.Have you already solve the problem??

@yifanshu02
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i think the ts_calibrate is failed...

@yifanshu02
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solved!!

# Uncomment to use ts_calibrate's settings
#module linear

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3 participants