I first thought it was a calibration issue, but when I run
# cat < /dev/input/by-path/platform-1c2ac00.i2c-event
I can see touch event only under the 3.5 cm upper strip of the screen.
Is this an hardware issue ?
I really think this is an hardware issue, and that my touch sensor has a blind zone.
I would like to send it back and get a refund
you do not write which image do you use?
I just tested with our latest image from ftp://staging.olimex.com/Allwinner_Images/a64-olinuxino/linux/1.latest_images/ and it works
if you use other images please try ours and share your results
BTW do not use this forum for communication with olimex support and use firstname.lastname@example.org for prompt reply
no one monitors closely the posts here
The used image is ftp://staging.olimex.com/Allwinner_Images/a64-olinuxino/linux/1.latest_images/bionic/images/Armbian_5.92.1_Olinuxino-a64_Ubuntu_bionic_next_5.2.5_desktop.7z
When monitoring /proc/interrupts, the interrupt counter at:
33: 115394 0 0 0 GICv2 38 Level mv64xxx_i2c
does not increase when I touch the blind zone.
I am switching to email@example.com,
I can't reproduce the blind zone. Can it be badly bent or broken cable between the touch and the LCD driver board?
Can you show me a picture or video demonstrating the blind zone?