Ok Mussonero,
ho installato i drivers che mi hai indicato e ha funzionato.
Sono riuscito a tirare fuori sia il logcat che il dmesg.
Nel dmesg però ho notato che da 1.688187 a 2.098612 tenta di installare il driver per il touchscreen Focaltech FT5406.
L'installazione fallisce e non vedo alcun tentativo successivo di installare il Goodix Gt928.
Ti mando di seguito il pezzo di dmesg, con un po' di righe prima e dopo il pezzo del focaltech. (come devo fare se voglio mandarti i file completi?)
<6>[ 1.687161] android_usb gadget: Number of LUNs=2
<6>[ 1.687187] lun0: LUN: removable file: (no medium)
<6>[ 1.687212] lun1: LUN: removable file: (no medium)
<6>[ 1.687396] android_usb gadget: android_usb ready
<6>[ 1.687577] mousedev: PS/2 mouse device common for all mice
<6>[ 1.687760] input: rk29-keypad as /devices/platform/rk29-keypad/input/inpu
t0
<4>[ 1.688037] +++++++++++++++++++++++++++++liqing.
<6>[ 1.688187] ft5x0x_ts 2-0038: ft5x0x_ts_probe!
<3>[ 2.096433] i2c i2c-2: No ack, Maybe slave(addr: 0x38) not exist or abnorm
al power-on, retry 2...
<3>[ 2.096584] i2c i2c-2: No ack, Maybe slave(addr: 0x38) not exist or abnorm
al power-on, retry 1...
<3>[ 2.096730] i2c i2c-2: No ack, Maybe slave(addr: 0x38) not exist or abnorm
al power-on, retry 0...
<3>[ 2.096878] i2c i2c-2: No ack, Maybe slave(addr: 0x38) not exist or abnorm
al power-on, retry 2...
<3>[ 2.097023] i2c i2c-2: No ack, Maybe slave(addr: 0x38) not exist or abnorm
al power-on, retry 1...
<3>[ 2.097168] i2c i2c-2: No ack, Maybe slave(addr: 0x38) not exist or abnorm
al power-on, retry 0...
<3>[ 2.097315] i2c i2c-2: No ack, Maybe slave(addr: 0x38) not exist or abnorm
al power-on, retry 2...
<3>[ 2.097459] i2c i2c-2: No ack, Maybe slave(addr: 0x38) not exist or abnorm
al power-on, retry 1...
<3>[ 2.097605] i2c i2c-2: No ack, Maybe slave(addr: 0x38) not exist or abnorm
al power-on, retry 0...
<3>[ 2.097752] i2c i2c-2: No ack, Maybe slave(addr: 0x38) not exist or abnorm
al power-on, retry 2...
<3>[ 2.097898] i2c i2c-2: No ack, Maybe slave(addr: 0x38) not exist or abnorm
al power-on, retry 1...
<3>[ 2.098043] i2c i2c-2: No ack, Maybe slave(addr: 0x38) not exist or abnorm
al power-on, retry 0...
<3>[ 2.098190] i2c i2c-2: No ack, Maybe slave(addr: 0x38) not exist or abnorm
al power-on, retry 2...
<3>[ 2.098336] i2c i2c-2: No ack, Maybe slave(addr: 0x38) not exist or abnorm
al power-on, retry 1...
<3>[ 2.098481] i2c i2c-2: No ack, Maybe slave(addr: 0x38) not exist or abnorm
al power-on, retry 0...
<4>[ 2.098525] FT5406 I2C TEST ERROR!
<3>[ 2.098579] Error: Driver 'ft5x0x_ts' is already registered, aborting...
<4>[ 2.098612] Register 5406_ts driver failed.
<4>[ 2.098634] ft5x0x module init
<3>[ 2.098663] Error: Driver 'ft5x0x_ts' is already registered, aborting...
<4>[ 2.098909] sensor_register_slave:lis3dh,id=4
<4>[ 2.098934] sensor_register_slave:light_photoresistor,id=40
<6>[ 2.109239] using rtc device, wm831x, for alarms
<6>[ 2.109285] wm831x-rtc wm831x-rtc: rtc core: registered wm831x as rtc0
<6>[ 2.111308] Linux media interface: v0.10