I have a Waveshare 4" DSI round touch display, I am using Raspberry Pi OS bookworm to drive this display on a Raspberry Pi 4 Model B. I have the following line added to my `/boot/firmware/config.txt`The display works, and the touchscreen is detected and events are viewable using evtestHowever, when I try to run a PyQt app, I get the following:No touch events are registered in Qt.
I have checked using and no other process is using the device.
Does anyone know why this might be happening, and if if can be fixed, please?
Code:
dtoverlay=vc4-kms-dsi-waveshare-panel,4_0_inchCCode:
test:/boot/overlays $ evtest No device specified, trying to scan all of /dev/input/event* Not running as root, no devices may be available. Available devices: /dev/input/event0: Logitech Gaming Mouse G502 /dev/input/event1: Logitech Gaming Mouse G502 Keyboard /dev/input/event2: vc4-hdmi-0 /dev/input/event3: vc4-hdmi-0 HDMI Jack /dev/input/event4: vc4-hdmi-1 /dev/input/event5: vc4-hdmi-1 HDMI Jack /dev/input/event6: 10-0014 Goodix Capacitive TouchScreen Select the device event number [0-6]: 6 Input driver version is 1.0.1 Input device ID: bus 0x18 vendor 0x416 product 0x2437 version 0x1060 Input device name: "10-0014 Goodix Capacitive TouchScreen" Supported events: Event type 0 (EV_SYN) Event type 1 (EV_KEY) Event code 59 (KEY_F1) Event code 60 (KEY_F2) Event code 61 (KEY_F3) Event code 62 (KEY_F4) Event code 63 (KEY_F5) Event code 64 (KEY_F6) Event code 125 (KEY_LEFTMETA) Event code 330 (BTN_TOUCH) Event type 3 (EV_ABS) Event code 0 (ABS_X) Value 598 Min 0 Max 719 Event code 1 (ABS_Y) Value 417 Min 0 Max 719 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 719 Event code 54 (ABS_MT_POSITION_Y) Value 0 Min 0 Max 719 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 1716723788.115755, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value 5 Event: time 1716723788.115755, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 436 Event: time 1716723788.115755, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value 344 Event: time 1716723788.115755, type 3 (EV_ABS), code 48 (ABS_MT_TOUCH_MAJOR), value 87 Event: time 1716723788.115755, type 3 (EV_ABS), code 50 (ABS_MT_WIDTH_MAJOR), value 87 Event: time 1716723788.115755, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1 Event: time 1716723788.115755, type 3 (EV_ABS), code 0 (ABS_X), value 436 Event: time 1716723788.115755, type 3 (EV_ABS), code 1 (ABS_Y), value 344 Event: time 1716723788.115755, -------------- SYN_REPORT ------------Code:
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/event6") qt.qpa.input: evdevtouch: Adding device at /dev/input/event6 qt.qpa.input: evdevtouch: Using device /dev/input/event6 qt.qpa.input: evdevtouch: /dev/input/event6: Protocol type B (mtdev) (multi), filtered=no qt.qpa.input: evdevtouch: /dev/input/event6: min X: 0 max X: 719 qt.qpa.input: evdevtouch: /dev/input/event6: min Y: 0 max Y: 719 qt.qpa.input: evdevtouch: /dev/input/event6: min pressure: 0 max pressure: 0 qt.qpa.input: evdevtouch: /dev/input/event6: device name: 10-0014 Goodix Capacitive TouchScreen evdevtouch: The device is grabbed by another process. No events will be read.I have checked using
Code:
sudo fuser -v /dev/input/event6Does anyone know why this might be happening, and if if can be fixed, please?
Statistics: Posted by sesquipedality — Sun May 26, 2024 12:03 pm — Replies 0 — Views 27