Ubuntu
linux-lts-vivid package

  1. Bug #1564237
  2. Comment #3

Comment 3 for bug 1564237

Revision history for this message
Mike Ditto (ford-k) wrote :

I noticed in dmesg:

Working kernel:
[ 3.565137] i2c_hid i2c-SYN1B7D:01: failed to retrieve report from device.
[ 3.565306] input: SYN1B7D:01 06CB:2991 UNKNOWN as /devices/platform/80860F41:00/i2c-0/i2c-SYN1B7D:01/0018:06CB:2991.0001/input/input8
[ 3.565618] hid-multitouch 0018:06CB:2991.0001: input,hidraw0: <UNKNOWN> HID v1.00 Mouse [SYN1B7D:01 06CB:2991] on

Not working kernel:
[ 3.572672] i2c_designware 80860F41:00: controller timed out
[ 3.572682] i2c_designware 80860F41:00: Unknown Synopsys component type: 0x00000000
[ 3.572690] i2c_hid i2c-SYN1B7D:01: hid_descr_cmd failed

I'll attach both full dmesg logs.