Та же проблема. Контроллер тача eKTF2127L. Цепи в порядке, 3.3V и 1.8V присутствуют. Склоняюсь к программной неисправности. Часть лога dmesg касающаяся тачскрина:
Код:
<6>[    1.249226] [elan] elan_ktf2k_ts_init driver version 0x0003: Integrated 2
and 5 fingers together and auto-mapping resolution
<4>[    1.751161] [elan] __hello_packet_handler: hello packet 55:55:80:80
<4>[    1.751194] [elan] hellopacket's rc = 128
<6>[    1.761503] input: elan-touchscreen as /devices/virtual/input/input1
<6>[    1.761539] cpufreq_interactive_input_connect: connect to elan-touchscreen

<4>[    1.761992] [ELAN]misc_register finished!![ELAN]misc_register finished!![7
BD0]=0x66,[7BD1]=0x00,[7BD2]=0xe0,[7BD3]=0x04
<4>[    1.762055] FW_ID=0x0, New_FW_ID=0x4e0
<4>[    1.762075] FW_VERSION=0x0,New_FW_VER=0x66
[ELAN] Firmware upgrade recovery mode !
<3>[    1.762676] i2c i2c-2: No ack, Maybe slave(addr: 0x15) not exist or abnorm
al power-on, retry 2...
<3>[    1.763244] i2c i2c-2: No ack, Maybe slave(addr: 0x15) not exist or abnorm
al power-on, retry 1...
<3>[    1.763804] i2c i2c-2: No ack, Maybe slave(addr: 0x15) not exist or abnorm
al power-on, retry 0...
[ELAN] recovery byte data:ff,ff,ff,ff
[ELAN] send one byte data:15,15
<3>[    1.768904] DVFS ERR:     dvfs_reset_volt (clk:vd_cpu), try to reload arm_
volt! arm_volt_correct = 1200000
<4>[    2.441160] [ELAN] ERROR: GetAckData fail! res=0
<4>[    2.441182] [ELAN] ===1=== page ReStart 1 times!
[ELAN] Firmware upgrade recovery mode !
[ELAN] recovery byte data:ff,ff,ff,ff
[ELAN] send one byte data:15,15[ELAN] ERROR: GetAckData fail! res=0
<4>[    3.117482] [ELAN] ===1=== page ReStart 2 times!
[ELAN] Firmware upgrade recovery mode !
[ELAN] recovery byte data:ff,ff,ff,ff
[ELAN] send one byte data:15,15[ELAN] ERROR: GetAckData fail! res=0
<4>[    3.793855] [ELAN] ===1=== page ReStart 3 times!
[ELAN] Firmware upgrade recovery mode !
[ELAN] recovery byte data:ff,ff,ff,ff
[ELAN] send one byte data:15,15[ELAN] ERROR: GetAckData fail! res=0
<4>[    4.470351] [ELAN] ===1=== page ReStart 4 times!
[ELAN] Firmware upgrade recovery mode !
[ELAN] recovery byte data:ff,ff,ff,ff
[ELAN] send one byte data:15,15[ELAN] ERROR: GetAckData fail! res=0
<4>[    5.146687] [ELAN] ID 0x15 ReStart 5 times fails!