Changing from SCALED to SCALED RESIZEABLE window frequently causes segmentation fault on MacOS #3621
Description
Environment:
Platform: macOS-13.2-x86_64-i386-64bit
System: Darwin
System Version: Darwin Kernel Version 22.3.0: Thu Jan 5 20:53:49 PST 2023; root:xnu-8792.81.2~2/RELEASE_X86_64
Processor: i386 SSE2: Yes AVX2: Yes NEON: No
Architecture: Bits: 64bit Linkage:
Python: CPython 3.12.10 (main, Apr 9 2025, 04:11:22) [Clang 20.1.0 ]
GIL Enabled: True
pygame version: 2.5.6
SDL versions: Linked: 2.32.10 Compiled: 2.32.10
SDL Mixer versions: Linked: 2.8.1 Compiled: 2.8.1
SDL Font versions: Linked: 2.24.0 Compiled: 2.24.0
SDL Image versions: Linked: 2.8.8 Compiled: 2.8.8
Freetype versions: Linked: 2.13.3 Compiled: 2.13.3
Display Driver: Display Not Initialized
Mixer Driver: Mixer Not Initialized
Current behavior:
Running pg.display.set_mode(SCREEN_SIZE, pg.SCALED) before
pg.display.set_mode(SCREEN_SIZE, pg.SCALED | pg.RESIZABLE) results in a segmentation fault most of the time. MacOS prompts a crash report and the following is printed to terminal:
Fatal Python error: pygame_parachute: (pygame parachute) Segmentation Fault
Python runtime state: initialized
Current thread 0x00007ff85c9c6640 (most recent call first):
File "test.py", line 5 in <module>
Extension modules: pygame.base, pygame.constants, pygame.rwobject, pygame.rect, pygame.bufferproxy, pygame.math, pygame.surflock, pygame.surface, pygame.window, pygame.display, pygame.draw, pygame.joystick, pygame.event, pygame.imageext, pygame.image, pygame.key, pygame.mouse, pygame.pixelcopy, pygame.mask, pygame.time, pygame.transform, pygame.font, pygame.mixer_music, pygame.mixer, pygame.scrap, pygame.system, pygame._freetype (total: 27)
Expected behavior:
Application should run without segfaulting.
Steps to reproduce:
Run the following script.
import pygame as pg
pg.init()
SCREEN_SIZE = (128, 128)
pg.display.set_mode(SCREEN_SIZE, pg.SCALED)
pg.display.set_mode(SCREEN_SIZE, pg.SCALED | pg.RESIZABLE)Other modes can also be set, such as resizeable on both or hidden, but if scaled or resizeable are removed from either line the issue goes away. Issue is not present in Ubuntu.
Of 20 runs my results were:
16: Segmentation Fault
4: Code and window froze and had to be force quit
4: Code exited without error