ubuntu-phone team mailing list archive

[Skyflyer <skyflyer@xxxxxxxxxxxx>]

https://bugs.launchpad.net/canonical-devices-system-image/+bug/1573469


Looks like someone already filed a bug report, ran a backtrace and
narrowed down the issue to the brightness control.


On 04/24/2016 11:12 AM, Matthias Apitz wrote:
> El día Sunday, April 24, 2016 a las 10:08:37AM +0200, Matthias Apitz escribió:
>
>> El día Saturday, April 23, 2016 a las 06:18:57PM -0400, Skyflyer escribió:
>>
>>> I used "echo l > /proc/sysrq-trigger" to run a backtrace of all cpus. 
>>> Output will be logged in dmesg.  Watching syslog or dmesg with "Adjust
>>> brightness automatically" on and off will show a big difference in the
>>> log files, specifically this line:
>>>
>>> (0)[1576:kworker/0:2][ALS/PS] als_get_data 1962 : als_get_data *value =
>>> 140, *status =2
>>>
>>> I get a million of these in syslog with auto brightness turned on.
>> Me too. I saw these lines as well in /var/log/syslog:
>>
>> Apr 17 06:17:01 ubuntu-phablet kernel: [23390.162827] (0)[17343:kworker/0:0][ALS/PS] als_get_data 1962 : als_get_data *value = 10, *status =2
>> ...
> I filed a bug in LP:
> https://bugs.launchpad.net/canonical-devices-system-image/+bug/1574308
>
> Please sibscribe "me too" to it, if you are seeing the same issue.
>
> 	matthias
>
>