Ticket #11041 (closed defect: fixed)
XO-1.75 accelerometer may hang
|Reported by:||Quozl||Owned by:||saadia|
|Component:||kernel||Version:||Development build as of this date|
|Action Needed:||no action||Verified:||no|
|Deployments affected:||Blocked By:|
Sometimes the accelerometer may hang. The triggering conditions have not been determined.
When it hangs, an open of the device stalls the process in D state and several lines appear in dmesg:
i2c i2c-5: i2c_pxa: timeout waiting for bus free
which are followed by one line of
lis3: power on failure
and the cycle repeats.
The symptom was cleared by removing power and main battery from the laptop.
(The power on failure message is from lis3_i2c_init. The device is connected directly to the SoC, so only the device should be responsible for bus not free.)