[MX4] LED does not notify for incoming notifications

is this only on arale ?

Yes, works on krillin, doesn't work on arale.

Unity8 uses the android-headers package to accomplish that for krillin. That gives us the following options to initialize lights:

LIGHT_ID_BACKLIGHT
LIGHT_ID_KEYBOARD
LIGHT_ID_BUTTONS
LIGHT_ID_BATTERY
LIGHT_ID_NOTIFICATIONS
LIGHT_ID_ATTENTION

Krillin works fine with LIGHT_ID_NOTIFICATIONS, however, arale doesn't. I have tried with all the others and the only one that actually does something on arale is LIGHT_ID_BACKLIGHT, which is obviously not what we want. If we can talk to the lights at all, this probably needs to be fixed on the android side of things.

According to ogra we can control the light using: /sys/class/leds/mx-led/trigger

echo 1 >/sys/class/leds/mx-led/blink
(as root) makes the led blink

echo 0 >/sys/class/leds/mx-led/blink
stops teh blinking

the triggers are rather for specific use cases ...

Status changed to 'Confirmed' because the bug affects multiple users.

Not sure what component to task but Alex will look into it

My plan will be checking the behavior on flyme and try to apply that on
Arale.

Pat McGowan <email address hidden> 於 2015/6/26週五 下午 8:50 寫道：

> Not sure what component to task but Alex will look into it
>
> ** Also affects: canonical-devices-system-image
> Importance: Undecided
> Status: New
>
> ** Changed in: canonical-devices-system-image
> Importance: Undecided => Critical
>
> ** Changed in: canonical-devices-system-image
> Status: New => Confirmed
>
> ** Changed in: canonical-devices-system-image
> Milestone: None => ww28-2015
>
> ** Changed in: canonical-devices-system-image
> Assignee: (unassigned) => Yuan-Chen Cheng (ycheng-twn)
>
> ** Changed in: indicator-messages (Ubuntu)
> Importance: Undecided => Critical
>
> ** Changed in: indicator-messages (Ubuntu)
> Assignee: (unassigned) => Alex Tu (alextu)
>
> --
> You received this bug notification because you are a bug assignee.
> https://bugs.launchpad.net/bugs/1461682
>
> Title:
> [MX4] LED does not notify for incoming notifications
>
> Status in the base for Ubuntu mobile products:
> Confirmed
> Status in indicator-messages package in Ubuntu:
> Confirmed
> Status in qtubuntu package in Ubuntu:
> Confirmed
> Status in unity8 package in Ubuntu:
> Confirmed
>
> Bug description:
> Image r12
>
> The notification LED on the device does not blink when a new SMS
> arrives. Its always static off. It however does lighten up when the
> button physical button is pressed.
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/canonical-devices-system-image/+bug/1461682/+subscriptions
>

Refer to the patches for MX4 at;
https://bugs.launchpad.net/tangxi/+bug/1469591/comments/1

Currently MX4 didn't seem to implement all notifications listed #2, otherwise only uses a few of locally defined led notifications. If we need to support all notifications, we could support them simply as #10 but it might be combinations of brightness & blinking mainly because it only has a white led and blinking itself is pre-defined by kernel (user can only enable/disable it).

will release on next update.

@George: note that this has not been released yet, we usually keep bugs in "Fix Committed" state until the actual OTA was released to the endusers ...

Merge proposal https://code-review.tangxi-git.canonical.com/719 moved to https://code.launchpad.net/~tangxi-team/tangxi/+git/platform_mediatek/+merge/281051