Unable to create GL Context on launch

[codecowboy]

I came across this when running on an admittedly ancient Dell Vostro Laptop (Ubuntu 24.04). I seem to remember the integrated graphics only supports earlier versions of OpenGL if that is relevant

ghostty
info: ghostty version=1.0.1
info: ghostty build optimize=ReleaseFast
info: runtime=apprt.Runtime.gtk
info: font_backend=font.main.Backend.fontconfig_freetype
info: dependency harfbuzz=8.3.0
info: dependency fontconfig=21500
info: renderer=renderer.OpenGL
info: libxev backend=main.Backend.io_uring
info(os): setlocale from env result=LC_CTYPE=en_US.UTF-8;LC_NUMERIC=en_GB.UTF-8;LC_TIME=en_GB.UTF-8;LC_COLLATE=en_US.UTF-8;LC_MONETARY=en_GB.UTF-8;LC_MESSAGES=en_US.UTF-8;LC_PAPER=en_GB.UTF-8;LC_NAME=en_GB.UTF-8;LC_ADDRESS=en_GB.UTF-8;LC_TELEPHONE=en_GB.UTF-8;LC_MEASUREMENT=en_GB.UTF-8;LC_IDENTIFICATION=en_GB.UTF-8
info(gtk): GTK version build=4.6.9 runtime=4.14.2
info(config): creating template config file: path=/home/lukemackenzie/.config/ghostty/config
warning(config): error creating template config file err=error.FileNotFound
info(config): default shell source=env value=/home/linuxbrew/.linuxbrew/bin/zsh
warning(sentry): crash report written to disk path=/home/lukemackenzie/.local/state/ghostty/crash/30bc542f-aa9f-415a-ec51-e4aa42ef5e00.ghosttycrash
info(gtk): libadwaita version build=1.1.7 runtime=1.5.0
Gsk-Message: 12:27:07.088: Failed to realize renderer of type 'GskNglRenderer' for surface 'GdkX11Toplevel': OpenGL ES 3.0 is not supported by this renderer.

error(gtk_surface): surface failed to realize: Unable to create a GL context
warning(gtk_surface): this error is usually due to a driver or gtk bug
warning(gtk_surface): this is a common cause of this issue: https://gitlab.gnome.org/GNOME/gtk/-/issues/4950
[1]    18433 segmentation fault (core dumped)  ghostty

Itś not critical but thought it was worth reporting.

[rhodes-b]

Ghostty requires opengl 3.3 which is like 15 years old, so I dont think you dont have a new enough version anything about gles is some issue with GTK, ghostty tells GTK to not use gles. There might be something else going on here though your build and runtime versions for both adwaita and GTK are vastly different ghostty internally sets some env variables for runtime depending on the compile time version of these libraries. There was a PR recently to change this to attempt to use the runtime version to populate these variables