Volume buttons have no effect during call when screen is disabled due to proximity sensor

[dimitris-personal]

Guidelines

• [X] I have searched searched open and closed issues for duplicates
• [X] I am submitting a bug report for existing functionality that does not work as intended
• [X] This isn't a feature request or a discussion topic

Bug description

• Start outbound call in earpiece mode (no bluetooth or wired headset, no speaker mode).
• When phone is held against my face, the proximity sensor correctly turns the screen off.
• However, while the screen is off, the volume buttons have no effect on earpiece volume.
• With the phone away from my face, screen turns on, and now I can make earpiece volume changes with the volume buttons.

Screenshots

No response

Device

Google Pixel 7

Android version

Android 15 build AP3A.241105.007

Signal version

Reproduces with:

• 7.24.2 from Play Store
• 7.25.2 from Play Store
• 7.26.1 from Play Store

Link to debug log

https://debuglogs.org/android/7.24.2/3ad91abac35b0ff1fd0fae84b6d844af5382abf72c96b6cd5f74decae466bb6a

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[dimitris-personal]

Still happening on Android 7.31.1

[dimitris-personal]

Debug log on 7.31.1

Different steps this time but similar issue:

• Incoming call rings.
• Pick up.
• Proximity sensor disabled, screen stays on despite having phone against ear.
• Manually turn screen off using the power button, then back on.
• Proximity sensor/screen auto turn off/volume buttons now working.

https://debuglogs.org/android/7.31.1/77b9f81684bb690790b997558e93034f548b680ca6b609da6447d1e52bb18daf

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[dimitris-personal]

Readily reproducable here on the same Pixel 7.

Incidentally, and maybe separate issue (or not?) the first call attempt failed to surface a ring (and call never went to Ringing on the originating device), but the moment I dropped the call attempt from the originating device I got the missed call notification on the P7.

On the second attempt, after accepting the call I got the "no proximity screen disable until I manually toggle screen off/on with the power button" issue again.

Debug log: https://debuglogs.org/android/7.39.3/e9aef9eeb4e5ffe70871a5e2180af9ad347be24838415349b68ddbe844eb19ea

[dimitris-personal]

I'll close this and open a new one after I get the steps documented more clearly. This has drifted, mixed incoming/outgoing devices and volume buttons vs proximity sensor (even though issues with the latter two seem to correlate).