Accel handler freezes on tap (P2D)

[sfcgeorge]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

When using accel_data_service_subscribe on Pebble 2 Duo the handler "freezes" (is not called for about 5 to 10s) on taps.

Normal movements work fine, but a sharp flick or tap causes this to freeze. The app UI is still responsive, so it's just the handler not firing. I have not enabled tap detection in my app.

I've tested my app on an original Pebble Time and Pebble Round and neither of those freeze on sharp motion. I don't have a PT2 or PR2 to test yet.

Expected Behavior

accel_data_service_subscribe handler function should always be called regularly, regardless of backlight motion setting.

Steps To Reproduce

• On Pebble 2 Duo
• Set up accel_data_service_subscribe handler in an app (see repro)
• Flick/tap wrist - the handler won't be called for 5 to 10s - wearing the watch a little loose is the easiest way to get a sharp flick that triggers the bug

Repro app:

accel_test.zip

Version

v4.9.100

Host OS

N/A

Watch

Pebble 2 Duo (Asterix)

Anything else?

No response

[ericmigi]

@jplexer is this related to the accel watchdog issue?

[sfcgeorge]

Embarrassingly I tried again this morning and the issue is back even with Backlight Motion off, multiple tests yesterday seemed to verify my theory but I guess I just wasn't flicking hard enough. Re-tested OG Time and Round and those still work as expected (no freeze) even with extreme morning flicks.

So there's some issue, but probably not Backlight Motion related.

I can try to make a minimal repro app later so you don't have to waste time.

[sfcgeorge]

I've added a tiny repro app, both code and pbw included in zip 😄