No image on touchscreen

alexandrglukhov — Wed, 15 Oct 2014 05:51:09 GMT

Hello, I have a problem with image on touchscreen on i.MX28 with Linux.

When I run java awt application, I see image on VGA monitor, but there is nothing on touchscreen.

I typing:

export DISPLAY=:0

export TSLIB_TSDEVICE=/dev/input/ts0

Xfbdev -mouse tslib,2,device=/dev/input/ts0 &

But image is appearing only on VGA screen. When I touches touchscreen, I see cursor running on VGA screen.

Also I tried to calibrate

ts_calibrate

then I see on console of COM-port, that it is reading my touches, but there is nothing on touch anyway.

And i tried evtest too:

root@freescale ~$ evtest /dev/input/ts0

Input driver version is 1.0.0

Input device ID: bus 0x0 vendor 0x0 product 0x0 version 0x0

Input device name: "MXS touchscreen"

Supported events:

Event type 0 (Sync)

Event type 3 (Absolute)

Event code 0 (X)

Value 1758

Min 0

Max 4095

Event code 1 (Y)

Value 2015

Min 0

Max 4095

Event code 24 (Pressure)

Value 0

Min 0

Max 1

Testing ... (interrupt to exit)

And when I touch it:

Event: time 43.599315, type 3 (Absolute), code 24 (Pressure), value 1

Event: time 43.639031, type 3 (Absolute), code 0 (X), value 2110

Event: time 43.639031, type 3 (Absolute), code 1 (Y), value 2857

Event: time 43.639063, -------------- Report Sync ------------

Event: time 43.682999, type 3 (Absolute), code 0 (X), value 2105

Event: time 43.683031, type 3 (Absolute), code 1 (Y), value 2851

Event: time 43.683031, type 3 (Absolute), code 24 (Pressure), value 0

Event: time 43.683031, -------------- Report Sync ------------

Event: time 44.163057, type 3 (Absolute), code 24 (Pressure), value 1

Event: time 44.203028, type 3 (Absolute), code 0 (X), value 3686

Event: time 44.203059, type 3 (Absolute), code 1 (Y), value 3326

Event: time 44.203059, -------------- Report Sync ------------

Event: time 44.243062, type 3 (Absolute), code 0 (X), value 3704

Event: time 44.243093, type 3 (Absolute), code 1 (Y), value 3281

Event: time 44.243093, -------------- Report Sync ------------

Event: time 44.287000, type 3 (Absolute), code 0 (X), value 3708

Event: time 44.287031, type 3 (Absolute), code 1 (Y), value 1939

Event: time 44.287031, type 3 (Absolute), code 24 (Pressure), value 0

Event: time 44.287031, -------------- Report Sync ------------

So, what should I do, to see something on touchscreen?

Re: No image on touchscreen

alexandrglukhov — Wed, 15 Oct 2014 12:07:09 GMT

Well, I just download another version of Linux image and replace files uImage and imx28_ivt_linux.sb and all works now! That was easy)

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