Moonlight crashes with fractional scaling enabled on Hyprland

[glanch]

Describe the bug
When starting the stream on a HiDPI monitor on Hyprland with fractional scaling enabled, Moonlight crashes with a segmentation fault. The same configuration with fractional scaling disabled works flawless.

Steps to reproduce

• Enable fractional scaling on HiDPI monitor on Hyprland
• Start Moonlight QT client
• Start stream

Affected games
This happens both with Desktop and Steam Big Picture

Other Moonlight clients

• No

Moonlight settings (please complete the following information)

• I am using standard settings

Client PC details (please complete the following information)

• OS: NixOS 23.11, Kernel 6.6.18
• Window Manager: Hyprland 1698d336f2511ee7c93d0a520c7ba3491c831e8d on Wayland
• Moonlight Version: 5.0.1
• GPU: AMD RX 5700XT
• Linux package type: NixOS-packaged

Server PC details (please complete the following information)

• OS: Windows 10
• Sunshine: 0.22.0
• GPU: NVidia RTX 2080 Super
• GPU driver: 536.23

Moonlight Logs (please attach)
Moonlight logs when fractional scaling enabled: moonlight-fractional-scaling-enabled.txt
Moonlight logs when fractional scaling disabled: moonlight-fractional-scaling-disabled.txt

Additional context
Using XWayland instead is not a solution because (a) the window gets blurry and (b) I could also disable fractional scaling with the same drawbacks

[BigMilkBoi]

This is what was happening for me as well in #1201.
Currently running the latest version of wlroots. Not using fractional scaling solved the issue

[cgutman]

This was an SDL bug, as we mentioned in #1198.

libsdl-org/SDL#9283

[cgutman]

The SDL fix was released in SDL 2.30.2.