Stripes in fullscreen on macOS

[Vutshi]

I see the following stripes in minimal-egui example when in fullscreen mode:

Curiously, when switching to fullscreen mode, I see the expected plain background for a brief moment before the stripes appear. This bug also appears in martyPC emulator which employs pixels.

Environment:

• macOS 13.6.7 (22G720)
• 2,3 GHz Quad-Core Intel Core i7
• Intel Iris Plus Graphics
• Rust 1.78.0

[parasyte]

This looks like the clear color is not being set correctly, or that the background is not being cleared. What happens when you move the egui window around? If it leaves a ghost of the window in the background, that confirms my suspicion.

[parasyte]

Upstream issue: https://github.com/gfx-rs/wgpu/issues/3415

I'll keep this open to track upstream.