System:
Operating System: TUXEDO OS
KDE Plasma Version: 6.5.2
KDE Frameworks Version: 6.19.0
Qt Version: 6.9.2
Kernel Version: 6.17.0-113020-tuxedo (64-bit)
Graphics Platform: Wayland
Processors: 8 × AMD Ryzen 9 9950X3D 16-Core Processor
Memory: 128 GiB of RAM (123.2 GiB usable)
Graphics Processor 1: NVIDIA GeForce RTX 5090
Graphics Processor 2: AMD Ryzen 9 9950X3D 16-Core Processor
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7D75
System Version: 1.0
Cinny: 4.11.2
According to Mistral at least:
The full backtrace confirms that Cinny is crashing during GTK initialization, specifically in the tao event loop (a Rust-based windowing library). This is a known issue for some Flatpak apps built with newer GTK/tao versions, especially when running on KDE Plasma 6 or under Wayland. The crash is not due to missing dependencies or your system configuration, but rather a compatibility issue between the Flatpak runtime, GTK, and your desktop environment.
Why This Happens
Cinny uses the tao crate (a Rust windowing library) with GTK backend.
The GTK backend in tao sometimes fails to initialize in Flatpak sandboxes, especially when the host system uses Wayland or has certain GTK versions/themes.
The error is not specific to your setup but a broader compatibility issue.
flatpak run in.cinny.Cinny
(cinny:2): Gtk-WARNING **: 09:41:06.609: Theme directory places/symbolic of theme tuxedo-breeze-dark has no size field
Gdk-Message: 09:41:07.026: Error 71 (Protocol error) dispatching to Wayland display.
ERROR: WebKit encountered an internal error. This is a WebKit bug.
/buildstream/gnome/sdk/webkit2gtk-4.1.bst/Source/WebKit/WebProcess/Network/WebLoaderStrategy.cpp(641) : void WebKit::WebLoaderStrategy::internallyFailedLoadTimerFired()
Trouble shooting:
flatpak override --user --env=QT_QPA_PLATFORM=xcb in.cinny.Cinny
flatpak run in.cinny.Cinny
(cinny:2): Gtk-WARNING **: 09:42:36.979: Theme directory places/symbolic of theme tuxedo-breeze-dark has no size field
Gdk-Message: 09:42:37.460: Error 71 (Protocol error) dispatching to Wayland display.
More override trouble shooting:
flatpak run --env=GDK_BACKEND=x11 --env=CLUTTER_BACKEND=x11 --env=SDL_VIDEODRIVER=x11 --env=RUST_BACKTRACE=full in.cinny.Cinny
thread 'main' (2) panicked at /run/build/Cinny/cargo/vendor/tao-0.34.2/src/platform_impl/linux/event_loop.rs:218:53:
Failed to initialize gtk backend!: BoolError { message: "Failed to initialize GTK", filename: "/run/build/Cinny/cargo/vendor/gtk-0.18.2/src/rt.rs", function: "gtk::rt::init", line: 141 }
stack backtrace:
0: 0x6114a7f87e02 -
1: 0x6114a7f9ac5a -
2: 0x6114a7f5aaa6 -
3: 0x6114a7f692b9 -
4: 0x6114a7f69119 -
5: 0x6114a7f694fb -
6: 0x6114a7f69378 -
7: 0x6114a7f66359 -
8: 0x6114a7f4ed1d -
9: 0x6114a7fa4c6c -
10: 0x6114a7fa3f82 -
11: 0x6114a7a6344c -
12: 0x6114a7b9a514 -
13: 0x6114a7aa7fc0 -
14: 0x6114a7a7c318 -
15: 0x6114a7a55813 -
16: 0x6114a7a55809 -
17: 0x6114a7f5c536 -
18: 0x6114a7a55865 -
19: 0x725c5fecd975 -
20: 0x725c5fecda28 - __libc_start_main
21: 0x6114a7a55735 -
22: 0x0 -
Also sometimes having issues with it running on mobile phone furios, currently it is running furios 14.0.2.
System:
Operating System: TUXEDO OS
KDE Plasma Version: 6.5.2
KDE Frameworks Version: 6.19.0
Qt Version: 6.9.2
Kernel Version: 6.17.0-113020-tuxedo (64-bit)
Graphics Platform: Wayland
Processors: 8 × AMD Ryzen 9 9950X3D 16-Core Processor
Memory: 128 GiB of RAM (123.2 GiB usable)
Graphics Processor 1: NVIDIA GeForce RTX 5090
Graphics Processor 2: AMD Ryzen 9 9950X3D 16-Core Processor
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7D75
System Version: 1.0
Cinny: 4.11.2
According to Mistral at least:
The full backtrace confirms that Cinny is crashing during GTK initialization, specifically in the tao event loop (a Rust-based windowing library). This is a known issue for some Flatpak apps built with newer GTK/tao versions, especially when running on KDE Plasma 6 or under Wayland. The crash is not due to missing dependencies or your system configuration, but rather a compatibility issue between the Flatpak runtime, GTK, and your desktop environment.
Why This Happens
Cinny uses the tao crate (a Rust windowing library) with GTK backend.
The GTK backend in tao sometimes fails to initialize in Flatpak sandboxes, especially when the host system uses Wayland or has certain GTK versions/themes.
The error is not specific to your setup but a broader compatibility issue.
flatpak run in.cinny.Cinny
(cinny:2): Gtk-WARNING **: 09:41:06.609: Theme directory places/symbolic of theme tuxedo-breeze-dark has no size field
Gdk-Message: 09:41:07.026: Error 71 (Protocol error) dispatching to Wayland display.
ERROR: WebKit encountered an internal error. This is a WebKit bug.
/buildstream/gnome/sdk/webkit2gtk-4.1.bst/Source/WebKit/WebProcess/Network/WebLoaderStrategy.cpp(641) : void WebKit::WebLoaderStrategy::internallyFailedLoadTimerFired()
Trouble shooting:
flatpak override --user --env=QT_QPA_PLATFORM=xcb in.cinny.Cinny
flatpak run in.cinny.Cinny
(cinny:2): Gtk-WARNING **: 09:42:36.979: Theme directory places/symbolic of theme tuxedo-breeze-dark has no size field
Gdk-Message: 09:42:37.460: Error 71 (Protocol error) dispatching to Wayland display.
More override trouble shooting:
flatpak run --env=GDK_BACKEND=x11 --env=CLUTTER_BACKEND=x11 --env=SDL_VIDEODRIVER=x11 --env=RUST_BACKTRACE=full in.cinny.Cinny
thread 'main' (2) panicked at /run/build/Cinny/cargo/vendor/tao-0.34.2/src/platform_impl/linux/event_loop.rs:218:53:
Failed to initialize gtk backend!: BoolError { message: "Failed to initialize GTK", filename: "/run/build/Cinny/cargo/vendor/gtk-0.18.2/src/rt.rs", function: "gtk::rt::init", line: 141 }
stack backtrace:
0: 0x6114a7f87e02 -
1: 0x6114a7f9ac5a -
2: 0x6114a7f5aaa6 -
3: 0x6114a7f692b9 -
4: 0x6114a7f69119 -
5: 0x6114a7f694fb -
6: 0x6114a7f69378 -
7: 0x6114a7f66359 -
8: 0x6114a7f4ed1d -
9: 0x6114a7fa4c6c -
10: 0x6114a7fa3f82 -
11: 0x6114a7a6344c -
12: 0x6114a7b9a514 -
13: 0x6114a7aa7fc0 -
14: 0x6114a7a7c318 -
15: 0x6114a7a55813 -
16: 0x6114a7a55809 -
17: 0x6114a7f5c536 -
18: 0x6114a7a55865 -
19: 0x725c5fecd975 -
20: 0x725c5fecda28 - __libc_start_main
21: 0x6114a7a55735 -
22: 0x0 -
Also sometimes having issues with it running on mobile phone furios, currently it is running furios 14.0.2.