Attention has :backlight crash on Venu2

davidmct-g over 3 years ago

Hi,

This issue still seems to be affecting Venu 2 devices on 9.17 and 9.20 with Unhandled Exception.

The documentation says this should work!!

Regards,

David

_psx_ over 3 years ago

Is it for watch face?

jim_m_58 over 3 years ago in reply to _psx_

Attention isn't available in a watch face so that could be it

Attention is available for

App Types:

Watch App
Audio Content Provider
Data Field
Widget

_psx_ over 3 years ago in reply to jim_m_58

I know so have asked because exception during checking HAS means no Attention.

davidmct-g over 3 years ago in reply to jim_m_58

Sorry I should have said it's a Watch App.

davidmct-g over 3 years ago in reply to davidmct-g

I've also added a try catch for the next release.

Brandon.ConnectIQ over 3 years ago in reply to davidmct-g

I suspect this is by design and the app is receiving a BackLightOnTooLongException because it held the backlight on too long. From the docs for Attention.backlight() https://developer.garmin.com/connect-iq/api-docs/Toybox/Attention.html#backlight-instance_function:

Calling this repeatedly can hold the display on, but if the product has burn in protection an exception will be thrown if you attempt to keep the display enabled for too long (e.g. over 1 minute).

Venu 2 has burn in protection since it's OLED.

It looks like the exception is thrown just 45 seconds into the data field's lifetime because once the backlight is on, it still times out as usual. Since there is a 15 second timeout, and we don't want to leave the backlight on for longer than 60 seconds, the exception is thrown at the 45th second.

_psx_ over 3 years ago in reply to Brandon.ConnectIQ

but, according to subject (no code) exception is when he only calls

if(Attention has :backlight)

Brandon.ConnectIQ over 3 years ago in reply to _psx_

Oh, I misunderstood - my fault. We'll see if we can reproduce this. I was looking around for related tickets and I'm not seeing any. It was working in the the testing we had conducted in the past (as early as 9.09 firmware), so perhaps there's a regression we're not aware of.

jim_m_58 over 3 years ago

My venu2 has the 10.12 FW - https://forums.garmin.com/sports-fitness/healthandwellness/f/venu-2/299931/beta---venu-2-2s-sw-10-12-now-available

bl=(Attention has :backlight) ? "x" : "o";

works fine in my test device-app

davidmct-g over 3 years ago in reply to Brandon.ConnectIQ

Hi, Works fine in simulator. It maybe that the user has already turned on the backlight. I only turn it on when my test is completed (as on some watches it can be hard to see results unless backlight is on). This is every 5 mins. Would be useful to know if the backlight is already on I guess and for how long to decide whether to take action.

In ERA error is only shown as Unhandled Exception.

Regards,

David