Screen size in Samsung Tablet 10.1

Question

I have rooted my Samsung Tablet 10.1 (Android 4.1.2) and used AutoMacro for auto touching. But AutoMacro gets the wrong screen size. The expected values are 1280 X 800, but the new values are 4096 X 4096. I have the same problem in other auto touching softwares.

I have reset my Tablet several times, but this problem still exists.

I use this command getevent -p to show this message:

add device 7: /dev/input/event1
  name:     "sec_touchscreen"
  events:
    ABS (0003): 002f  : value 0, min 0, max 9, fuzz 0, flat 0, resolution 0
                0030  : value 0, min 0, max 255, fuzz 0, flat 0, resolution 0
                0035  : value 0, min 0, max 4095, fuzz 0, flat 0, resolution 0
                0036  : value 0, min 0, max 4095, fuzz 0, flat 0, resolution 0
                0039  : value 0, min 0, max 65535, fuzz 0, flat 0, resolution 0
                003a  : value 0, min 0, max 255, fuzz 0, flat 0, resolution 0
                003c  : value 0, min 0, max 255, fuzz 0, flat 0, resolution 0
                003d  : value 0, min 0, max 416, fuzz 0, flat 0, resolution 0
  input props:
    INPUT_PROP_DIRECT

How should I fix this problem?

Answer 1

Option 1:

Check the device build.prop manually and verify if the densities are correct.

1. Goto /system using a file explorer and search for the file build.prop
2. Make a backup of the build.prop file
3. Open build.prop file and search for the key "lcd_density". My device has a screen density of 240 by default. You should have a different one. Just Increase or decrease until you get your desired result.
4. Finally set the file permission to rw-r--r--
5. Reboot and re-check.

Tips:

There are currently 7 different DPIs that Android supports natively:

120 (LDPI)
160 (MDPI)
213 (TVDPI)
240 (HDPI)
360 (XHDPI)
480 (XXHDPI)
640(XXXHDPI)

You can apply any densities between those scale.

Option 2:

Use Window Manipulator

Hope that'll help!