Unsolved Unable to detect touch key in qt
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Hello i'm using beagleboard x-15 with goodix touchscreen where touchscreen has a button which is mapped in linux as KEY_LEFTMETA .
My application uses qt virtual keyboad with EGLFS Qt 5.9.6.
I'm able to detect key and touchevents using evtest .
I'm able to use touchscreen in qt environment but not able to detect key [KEY_LEFTMETA].
Here is my evtest outputroot@am57xx-evm:~# evtest No device specified, trying to scan all of /dev/input/event* Available devices: /dev/input/event0: Goodix Capacitive TouchScreen Select the device event number [0-0]: 0 Input driver version is 1.0.1 Input device ID: bus 0x18 vendor 0x416 product 0x3a0 version 0x1060 Input device name: "Goodix Capacitive TouchScreen" Supported events: Event type 0 (EV_SYN) Event type 1 (EV_KEY) Event code 125 (KEY_LEFTMETA) Event code 330 (BTN_TOUCH) Event type 3 (EV_ABS) Event code 0 (ABS_X) Value 621 Min 0 Max 1280 Event code 1 (ABS_Y) Value 690 Min 0 Max 800 Event code 47 (ABS_MT_SLOT) Value 0 Min 0 Max 9 Event code 48 (ABS_MT_TOUCH_MAJOR) Value 0 Min 0 Max 255 Event code 50 (ABS_MT_WIDTH_MAJOR) Value 0 Min 0 Max 255 Event code 53 (ABS_MT_POSITION_X) Value 0 Min 0 Max 1280 Event code 54 (ABS_MT_POSITION_Y) Value 0 Min 0 Max 800 Event code 57 (ABS_MT_TRACKING_ID) Value 0 Min 0 Max 65535 Properties: Property type 1 (INPUT_PROP_DIRECT) Testing ... (interrupt to exit) Event: time 1568630308.729659, type 1 (EV_KEY), code 125 (KEY_LEFTMETA), value 1 Event: time 1568630308.729659, -------------- SYN_REPORT ------------ Event: time 1568630308.959110, type 1 (EV_KEY), code 125 (KEY_LEFTMETA), value 0 Event: time 1568630308.959110, -------------- SYN_REPORT ------------ Event: time 1568630417.185487, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value 6 Event: time 1568630417.185487, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 170 Event: time 1568630417.185487, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value 679 Event: time 1568630417.185487, type 3 (EV_ABS), code 48 (ABS_MT_TOUCH_MAJOR), value 25 Event: time 1568630417.185487, type 3 (EV_ABS), code 50 (ABS_MT_WIDTH_MAJOR), value 25 Event: time 1568630417.185487, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1 Event: time 1568630417.185487, type 3 (EV_ABS), code 0 (ABS_X), value 170 Event: time 1568630417.185487, type 3 (EV_ABS), code 1 (ABS_Y), value 679 Event: time 1568630417.185487, -------------- SYN_REPORT ------------ Event: time 1568630417.260888, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value -1 Event: time 1568630417.260888, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 0I've enabled qt.qpa.*=true in filter rules here is its output.
qt.qpa.egldeviceintegration: EGL device integration plugin keys: ("eglfs_emu", "eglfs_kms") qt.qpa.egldeviceintegration: Using base device integration qt.qpa.input: evdevkeyboard: Using device discovery qt.qpa.input: udev device discovery for type QFlags<QDeviceDiscovery::QDeviceType>(Device_Keyboard) qt.qpa.input: Found matching devices ("/dev/input/event0") qt.qpa.input: Adding keyboard at "/dev/input/event0" qt.qpa.input: Try to create keyboard handler for "/dev/input/event0" "" qt.qpa.input: Opening keyboard at "/dev/input/event0" qt.qpa.input: Create keyboard handler with for device "/dev/input/event0" qt.qpa.input: Unload current keymap and restore built-in qt.qpa.input: numlock=0 , capslock=0, scrolllock=0 qt.qpa.input: evdevmouse: Using device discovery qt.qpa.input: udev device discovery for type QFlags<QDeviceDiscovery::QDeviceType>(Device_Mouse|Device_Touchpad) qt.qpa.input: Found matching devices () qt.qpa.input: evdevtouch: Using device discovery qt.qpa.input: udev device discovery for type QFlags<QDeviceDiscovery::QDeviceType>(Device_Touchpad|Device_Touchscreen) qt.qpa.input: Found matching devices ("/dev/input/event0") qt.qpa.input: evdevtouch: Adding device at "/dev/input/event0" qt.qpa.input: evdevtouch: Using device /dev/input/event0 qt.qpa.input: evdevtouch: /dev/input/event0: Protocol type B (multi), filtered=no qt.qpa.input: evdevtouch: /dev/input/event0: min X: 0 max X: 1280 qt.qpa.input: evdevtouch: /dev/input/event0: min Y: 0 max Y: 800 qt.qpa.input: evdevtouch: /dev/input/event0: min pressure: 0 max pressure: 0 qt.qpa.input: evdevtouch: /dev/input/event0: device name: Goodix Capacitive TouchScreen qt.qpa.input.keymap: Processing key event: keycode=330, modifiers=00 pressed=1, autorepeat=0 | plain=-1, withmod=-1, size=612 qt.qpa.input.keymap: Could not find a suitable mapping for keycode: 330, modifiers: 00 qt.qpa.input.keymap: Processing key event: keycode=330, modifiers=00 pressed=0, autorepeat=0 | plain=-1, withmod=-1, size=612 qt.qpa.input.keymap: Could not find a suitable mapping for keycode: 330, modifiers: 00 qt.qpa.input.keymap: Processing key event: keycode=125, modifiers=00 pressed=1, autorepeat=0 | plain=-1, withmod=-1, size=612 qt.qpa.input.keymap: Could not find a suitable mapping for keycode: 125, modifiers: 00 qt.qpa.input.keymap: Processing key event: keycode=125, modifiers=00 pressed=0, autorepeat=0 | plain=-1, withmod=-1, size=612 qt.qpa.input.keymap: Could not find a suitable mapping for keycode: 125, modifiers: 00How to enable detection of event KEY_LEFTMETA in Qt/Qml.
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Is there anyone who can guide me how to troubleshoot this problem?
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@jigarp you may want to take a look at QEvdevKeyboardHandler source code where the warning message is sent, and see if you could add the LEFT_META key event.
