OpenGL: Window stretch mode canvas_items or viewport leaves uncleared section if using keep, keep_width or keep_height stretch aspect

[git2013vb]

Godot version

v4.0.beta13.official [caacade]

System information

Debian 11

Issue description

I noticed this rendering issue.
It not happen in "Forward" or "Mobile" mode.
It happen when I set project settings->display->windows->stretch->mode as canvas_item or viewport.

I do not use NVIDIA card

this is a screen shoot

EDIT: I tried it in another computer
v4.0.beta12.official [3c9bf4b]
Debian 10

Godot Engine v4.0.beta12.official.3c9bf4bc2 - https://godotengine.org
OpenGL Renderer: Mesa DRI Intel(R) Ivybridge Mobile

Steps to reproduce

run the MRP and resize the window

Minimal reproduction project

test_resolution.zip

[acedogblast]

Can confirm that this bug still exists with Godot 4.0 RC1. The bug only effects the OpenGL renderer. Using Linux/Wayland with AMD GPU.

[clayjohn]

Looks like we have reports for this issue from all desktop OSes now, so it definitely isn't an X11 windowing issue. I will take a look

[git2013vb]

@clayjohn
It seems very similar to this issue #48091

Not sure if its related, but its worth take a look because I did some bisects at that time.

Maybe at that time this issue came out just in that particular case... We will see.

[clayjohn]

@git2013vb I don't think this is related to #48091. This issue was caused by 4.0-specific changes that are not in 3.x