AM625: AM62x Weston doesn't recognize touchscreen

Paul Minh

Intellectual 605 points

Part Number: AM625

Tool/software:

Hello TI,

Could you suggest how to fix below weston touch issue?

oot@am62xx-evm:~# weston &

---log--

18:34:49.658] GL ES 3.1 - renderer features:
read-back format: BGRA
wl_shm sub-image to texture: yes
EGL Wayland extension: yes
[18:34:49.659] couldn't fstat launcher tty: Bad file descriptor
[18:34:49.835] event0 - goodix-ts: is tagged by udev as: Tablet
[18:34:49.836] event0 - goodix-ts: libinput bug: missing tablet capabilities: resolution. Ignoring this device.
[18:34:49.836] event0 - goodix-ts: device is a tablet
[18:34:49.869] event0 - failed to create input device '/dev/input/event0'

----------

On Weston GUI, there is no response when we touch (but touch sensor works fine).

This issue is same as below:

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/523322/am572x-weston-doesn-t-recognize-touchscreen

Log:

52855.log.txt

11 months ago

0 Paul Minh 11 months ago

Intellectual 605 points

Additional log:

root@am62xx-evm:~# udevadm info -q all -n /dev/input/event0
P: /devices/virtual/input/input0/event0
N: input/event0
L: 0
E: DEVPATH=/devices/virtual/input/input0/event0
E: DEVNAME=/dev/input/event0
E: MAJOR=13
E: MINOR=64
E: SUBSYSTEM=input
E: USEC_INITIALIZED=148486924
E: ID_INPUT=1
E: ID_INPUT_TABLET=1
E: ID_SERIAL=noserial
E: LIBINPUT_DEVICE_GROUP=18/dead/beef:input/ts

0 Paul Minh 11 months ago in reply to Paul Minh

Intellectual 605 points

FYI, if we connect another USB mouse (/dev/input/event1), the mouse is working fine; able to click/close on weston GUI.

0 Nick Saulnier 11 months ago

TI__Guru** 103960 points

Hello Paul,

It looks like you are using one of the SDK 9.x Linux SDKs - is that correct, or are you using a different Linux kernel?

Are you using a TI EVM, or is this a custom board? If so, what version of the board are you using?

Regards,

Nick

0 Paul Minh 11 months ago in reply to Nick Saulnier

Intellectual 605 points

Hello Nick,

It is our custom board based AM6254 ALW SDK 9.0.

(not sure but this issue seems hit after we try to modify weston (only weston.ini) rotate 180 degree based on our display product setting.

unluckly, after rollbacking the code; we still face this issue (able to touch on weston GUI any more). As in the given log, /dev/input/event0 is created by the touch driver and when we touch the screen, the driver output index x,y correctly.)

May you let us know what/where is the root case of this issue?

History: 1 month ago

It was ok, at least we can touch (even abnormal).

"
[14:45:26.022] event1 - Instant USB Optical Mouse: is tagged by udev as: Mouse Touchscreen
[14:45:26.022] event1 - Instant USB Optical Mouse: device is a pointer
[14:45:26.023] event1 - Instant USB Optical Mouse: device is a touch device
[14:45:26.025] event0 - goodix-ts: is tagged by udev as: Touchscreen Tablet
[14:45:26.026] event0 - goodix-ts: device is a touch device

" as in https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1432260/am625-weston-gui-touch-issue/5500516#5500516