Hi all, I'm using a 5.8.x kernel and an USB multitouch device is reporting a weird response in some situations. I put a coin or some object in the left edge of the touch without entering the working area and then the next taps to the touch are ignored. With the evtest tool to get all the messages from multitouch I'm reading a lot of EV_MSC events with code MSC_TIMESTAMP. Is it correct? Where this events storm could come from? Maybe is it configurable some way? # evtest /dev/input/event4 Input driver version is 1.0.1 Input device ID: bus 0x3 vendor 0x2b7f product 0xd200 version 0x110 Input device name: "Advanced Silicon S.A. CoolTouch® System Interface" Supported events: Event type 0 (EV_SYN) Event type 1 (EV_KEY) Event code 330 (BTN_TOUCH) Event type 3 (EV_ABS) Event code 0 (ABS_X) Value 29660 Min 0 Max 32767 Resolution 106 Event code 1 (ABS_Y) Value 11404 Min 0 Max 32767 Resolution 188 Event code 47 (ABS_MT_SLOT) Value 0 Min 0 Max 9 Event code 53 (ABS_MT_POSITION_X) Value 0 Min 0 Max 32767 Resolution 106 Event code 54 (ABS_MT_POSITION_Y) Value 0 Min 0 Max 32767 Resolution 188 Event code 57 (ABS_MT_TRACKING_ID) Value 0 Min 0 Max 65535 Event type 4 (EV_MSC) Event code 5 (MSC_TIMESTAMP) Properties: Property type 1 (INPUT_PROP_DIRECT) Testing ... (interrupt to exit) Event: time 1627381396.770902, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35023100 Event: time 1627381396.770902, -------------- SYN_REPORT ------------ Event: time 1627381396.780891, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35029400 Event: time 1627381396.780891, -------------- SYN_REPORT ------------ Event: time 1627381396.789895, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35035700 Event: time 1627381396.789895, -------------- SYN_REPORT ------------ Event: time 1627381396.798896, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35041900 Event: time 1627381396.798896, -------------- SYN_REPORT ------------ Event: time 1627381396.807889, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35048200 Event: time 1627381396.807889, -------------- SYN_REPORT ------------ Event: time 1627381396.816893, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35054400 Event: time 1627381396.816893, -------------- SYN_REPORT ------------ Event: time 1627381396.825891, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35060700 Event: time 1627381396.825891, -------------- SYN_REPORT ------------ Event: time 1627381396.834905, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35067000 Event: time 1627381396.834905, -------------- SYN_REPORT ------------ Event: time 1627381396.843914, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35073300 Event: time 1627381396.843914, -------------- SYN_REPORT ------------ Event: time 1627381396.852890, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35079600 Event: time 1627381396.852890, -------------- SYN_REPORT ------------ Event: time 1627381396.861899, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35085900 Event: time 1627381396.861899, -------------- SYN_REPORT ------------ Event: time 1627381396.871900, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35092200 Event: time 1627381396.871900, -------------- SYN_REPORT ------------ Event: time 1627381396.880903, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35098500 Event: time 1627381396.880903, -------------- SYN_REPORT ------------ Event: time 1627381396.889894, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35104800 Event: time 1627381396.889894, -------------- SYN_REPORT ------------ Event: time 1627381396.898894, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35111100 Event: time 1627381396.898894, -------------- SYN_REPORT ------------ Event: time 1627381396.907897, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35117400 Event: time 1627381396.907897, -------------- SYN_REPORT ------------ Event: time 1627381396.916905, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35123700 Event: time 1627381396.916905, -------------- SYN_REPORT ------------ Event: time 1627381396.925887, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35130000 Event: time 1627381396.925887, -------------- SYN_REPORT ------------ Event: time 1627381396.934912, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35136300 Event: time 1627381396.934912, -------------- SYN_REPORT ------------ Event: time 1627381396.943900, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35142500 Event: time 1627381396.943900, -------------- SYN_REPORT ------------ Event: time 1627381396.953893, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35148800 Event: time 1627381396.953893, -------------- SYN_REPORT ------------ Event: time 1627381396.962898, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35155100 Event: time 1627381396.962898, -------------- SYN_REPORT ------------ Event: time 1627381396.971896, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35161400 Event: time 1627381396.971896, -------------- SYN_REPORT ------------ Event: time 1627381396.980906, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35167700 Event: time 1627381396.980906, -------------- SYN_REPORT ------------ Event: time 1627381396.989911, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35174000 Event: time 1627381396.989911, -------------- SYN_REPORT ------------ Event: time 1627381396.998905, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35180300 Event: time 1627381396.998905, -------------- SYN_REPORT ------------ Event: time 1627381397.007899, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35186600 Event: time 1627381397.007899, -------------- SYN_REPORT ------------ Event: time 1627381397.016905, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35192900 Event: time 1627381397.016905, -------------- SYN_REPORT ------------ Event: time 1627381397.025898, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35199200 Event: time 1627381397.025898, -------------- SYN_REPORT ------------ Event: time 1627381397.034915, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35205500 Event: time 1627381397.034915, -------------- SYN_REPORT ------------ Event: time 1627381397.044908, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35211800 Event: time 1627381397.044908, -------------- SYN_REPORT ------------ Event: time 1627381397.053890, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35218100 Event: time 1627381397.053890, -------------- SYN_REPORT ------------ Event: time 1627381397.062903, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35224400 Event: time 1627381397.062903, -------------- SYN_REPORT ------------ Event: time 1627381397.071902, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35230700 Event: time 1627381397.071902, -------------- SYN_REPORT ------------ Event: time 1627381397.080904, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35237000 Event: time 1627381397.080904, -------------- SYN_REPORT ------------ Event: time 1627381397.089901, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35243200 Event: time 1627381397.089901, -------------- SYN_REPORT ------------ Event: time 1627381397.098905, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35249500 Event: time 1627381397.098905, -------------- SYN_REPORT ------------ Event: time 1627381397.107902, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35255800 Event: time 1627381397.107902, -------------- SYN_REPORT ------------ Event: time 1627381397.116900, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35262100 Event: time 1627381397.116900, -------------- SYN_REPORT ------------ Event: time 1627381397.126884, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35268400 Event: time 1627381397.126884, -------------- SYN_REPORT ------------ Event: time 1627381397.135916, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35274700 Event: time 1627381397.135916, -------------- SYN_REPORT ------------ Event: time 1627381397.144906, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35281000 Event: time 1627381397.144906, -------------- SYN_REPORT ------------ Event: time 1627381397.153898, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35287300 Event: time 1627381397.153898, -------------- SYN_REPORT ------------ Event: time 1627381397.162902, type 4 (EV_MSC), code 5 (MSC_TIMESTAMP), value 35293500 Event: time 1627381397.162902, -------------- SYN_REPORT ------------ Regards Jorge