Samsung Galaxy S22 flickering (OpenGL)

[devemux86]

There was a report with video about map background flickering on Samsung Galaxy S22 Ultra:

• Samsung Galaxy S22 flickering mapsforge/vtm#1128 (comment)

Does anyone have this phone or seen anything similar?

[MotoUKRider]

@devemux86 Galaxy S20 on Android 13 here - no such issue with UK, Netherlands or German maps (included the specific area the user posted).

What I do see, and this also occurs on the Desktop Cruiser (so could be a rendering "feature") are tiny hair-lines that (dis)appear as I move the map - they tend to occur just over a label (land or water).

[devemux86]

@MotoUKRider Can you post some screenshots?

[MotoUKRider]

@devemux86 Yes, I suppose that would be helpful!

It only seems to happen in my MotoRider theme (not Biker). But I can't immediately see why it is happening.

They (dis)appear as I move my finger across the map, much the same as in Desktop. I don't think there are conflicting objects as at high-zoom there's nothing else there. Perhaps there's a conflicting rule that I've created although the theme is mostly just a colour-swap from "Biker"... Mostly.

[devemux86]

This seems like an OpenGL issue.

Latest desktop does not have OpenGL (it is hidden), what version do you use?

[MotoUKRider]

Currently on 4.0.1b4 Desktop. It's happened for quite a few versions, I always assumed that it was an undocumented feature!

[DolomitesTom]

No flickering. Only last weekend I had the phenomenon that I had already reported in the past, that the cursor (GPS position) jumps back and forth, which meant that I missed the right exit.
But it was only a temporary problem.

[devemux86]

@DolomitesTom thanks, do you have Galaxy S22?

[DolomitesTom]

No, also 2 older Samsung devices.

[devemux86]

Let's close it here, as Cruiser 5 will have a new map engine without all these strange problems.