Skipping frames while resizing a transparent window

[GazimSoliev]

Describe the bug Skipping frames while resizing a transparant window

Affected platforms Select one of the platforms below:

• Desktop

Versions

• Kotlin version*: 1.9.21
• Compose Multiplatform version*: 1.5.11
• OS version(s)* (required for Desktop and iOS issues): Arch Linux 6.7.0-arch3-1
• OS architecture (x86 or arm64): x86-64
• JDK (for desktop issues): 17.0.10 temurin

To Reproduce

import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.material.Surface
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.window.Window
import androidx.compose.ui.window.application

fun main() = application {
    Window(onCloseRequest = ::exitApplication, title = "Window", undecorated = true, transparent = true) {
        Surface(color = Color.Green, modifier = Modifier.fillMaxSize()) { }
    }
}

Expected behavior Without skipping frames while resizing

[dima-avdeev-jb]

Made reproducible sample here: https://github.com/dima-avdeev-jb/issue-4153 Tested on Manjaro Linux, and found some janks while resizing.

@GazimSoliev Can you please recoed a video for better understanding?

[GazimSoliev]

I tried recorded, screenrecorder can't catch that cuz of bitrate, but in reality compose skips 1-2 frames while resizing that makes window invisible, espaseally hard UI window

[GazimSoliev]

and yeah, it's so laggy (glitch)

[dima-avdeev-jb]

On my Manjaro Linux I haven't encountered any problems with the invisible window.

[GazimSoliev]

On my Manjaro Linux I haven't encountered any problems with the invisible window.

I noticed this in XORG session, it doesn't exist in Wayland

[okushnikov]

Please check the following ticket on YouTrack for follow-ups to this issue. GitHub issues will be closed in the coming weeks.