Black screen glitch when unlocking the device with Android app

Bug Reports
#1

REPRODUCIBILITY (% or how often): always
BUILD ID = OS VERSION (Settings > About product): 3.4
HARDWARE (Jolla1, Tablet, XA2,…): XA2
UI LANGUAGE: English
REGRESSION: (compared to previous public release: Yes, No, ?): Yes

DESCRIPTION:

When unlocking the deive, if there is an Android app fullscreen there is a momentary black screen, it lasts for less than 1 second but is noticeable.
I don’t think this happend before upgrading to 3.4

PRECONDITIONS:

STEPS TO REPRODUCE:

  1. Have an Android app open and in the foreground
  2. Put the device to sleep
  3. Wake from sleep
  4. Unlock the device
  5. Observe the black screen for about half a second

EXPECTED RESULT:

Should unlock and immediately show the app, no black screen

ACTUAL RESULT:

Read above

ADDITIONAL INFORMATION:

(Please ALWAYS attach relevant data such as logs, screenshots, etc…)

Community meeting on IRC 11th January 2024
#2

Old bug and old software version used. Worth checking again whether this reproduces.

#3

I can easily reproduce it with OsmAnd~.
Open it and screen off. The screen take some time to appear. Sometime more, sometime less time.

#4

Using the latest development version of 4.6.0 on the Xperia 10 III, I can see a momentary glitch (not black, though) on some Android apps but not all.

YES: WhatsApp, Signal, OsmAnd, Mapy.cz, APKpure
NO: Telegram, YLE Areena, Spotify, File Manager +, OpenSignal, Element, Firefox

Those apps seem to work consistently when repeating the test.

3 Likes
#5

Thank you for reporting the issue.
Internal bug filed. Tracking tag set.