The Industrial Raspberry Pi Forum

When pressing the touchscreen it's almost like the input is backwards. Touching the screen results in a click at the cursors previous location and then the cursor is moved to the current touched position on the screen.

Is there a way to change the sequence of the touch input to have the cursor position change and then trigger the button press? ie have ev_abs complete and then ev_key. Or am I thinking about this wrong and just need to get a different screen? Ultimately I need a 17" touchscreen to be a HMI for a Codesys PLC.

Touchscreen is a Viewsonic TD1711
RevPi Core3 w/Stretch

Event: time 1560358801.746906, type 4 (EV_MSC), code 4 (MSC_SCAN), value 90001
Event: time 1560358801.746906, type 1 (EV_KEY), code 272 (BTN_LEFT), value 0
Event: time 1560358801.746906, -------------- SYN_REPORT ------------
Event: time 1560358814.706733, type 4 (EV_MSC), code 4 (MSC_SCAN), value 90001
Event: time 1560358814.706733, type 1 (EV_KEY), code 272 (BTN_LEFT), value 1
Event: time 1560358814.706733, type 3 (EV_ABS), code 0 (ABS_X), value 8520
Event: time 1560358814.706733, type 3 (EV_ABS), code 1 (ABS_Y), value 24448
Event: time 1560358814.706733, -------------- SYN_REPORT ------------
Event: time 1560358814.834980, type 4 (EV_MSC), code 4 (MSC_SCAN), value 90001
Event: time 1560358814.834980, type 1 (EV_KEY), code 272 (BTN_LEFT), value 0
Event: time 1560358814.834980, -------------- SYN_REPORT ------------

Hello,

did you find any solution yet?
I'm experiencing the same error with a DATA MODUL easyTOUCH mXT224S and the corresponding Touchscreen easyTOUCH 5.7" PCAP Solution 12017613.

On a normal Raspberry Pi 3 B+ the touch screen works as intended, but on my Revolution Pi Connect I've the same problem.

EDIT:
I could configure the touch module with the help of DATA MODUL to Multi touch. With this configuration, the problem was gone.

Hello Thomas,

great to hear that the problem could be solved with the help of DATA MODUL. Maybe you could share the solution here aswell, so others, facing the same issue, might find a solution here?

Nicolai

Hello Nicolai,

You'll need the easyANALYZER Software from DATA MODUL. But you can't download it, you'll have to contact the support for the software.
And because you'll have to contact them anyway I would recommend to give information about the error so they can help.

Best regards
Thomas