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Found no glutin configs matching the template

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
30/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
rust
Domain
desktop

Research direction

Reproduce the failure using the reported Nix build command and Fedora 38 environment, then inspect src/main.rs:56 and the eframe/glutin startup error. Determine why no matching window configuration is available; done means devfiler starts successfully instead of panicking with NoGlutinConfigs.

Written by the indexing model from the issue text.

Description

devfiler fails to start:

$ RUST_BACKTRACE=full result/bin/devfiler
2025-09-03T08:39:34.365866Z  INFO devfiler::collector: Collector listening on 0.0.0.0:11000
2025-09-03T08:39:34.510292Z ERROR eframe::native::run: Exiting because of error: Found no glutin configs matching the template: ConfigTemplate { color_buffer_type: Rgb { r_size: 8, g_size: 8, b_size: 8 }, alpha_size: 8, depth_size: 0, stencil_size: 0, num_samples: None, min_swap_interval: None, max_swap_interval: None, config_surface_types: ConfigSurfaceTypes(WINDOW), api: None, transparency: false, single_buffering: false, stereoscopy: None, float_pixels: false, max_pbuffer_width: None, hardware_accelerated: None, max_pbuffer_height: None, native_window: None }. Error: argument does not name a valid config    

thread 'main' panicked at src/main.rs:56:35:
called `Result::unwrap()` on an `Err` value: NoGlutinConfigs(ConfigTemplate { color_buffer_type: Rgb { r_size: 8, g_size: 8, b_size: 8 }, alpha_size: 8, depth_size: 0, stencil_size: 0, num_samples: None, min_swap_interval: None, max_swap_interval: None, config_surface_types: ConfigSurfaceTypes(WINDOW), api: None, transparency: false, single_buffering: false, stereoscopy: None, float_pixels: false, max_pbuffer_width: None, hardware_accelerated: None, max_pbuffer_height: None, native_window: None }, Error { raw_code: None, raw_os_message: None, kind: BadConfig })
stack backtrace:
   0:     0x561c7a292f90 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h9edbd6e38a8b0805
   1:     0x561c7a2b7203 - core::fmt::write::h7b1248e5e0c79c78
   2:     0x561c7a25b4f3 - std::io::Write::write_fmt::h5e301665499081bf
   3:     0x561c7a292e33 - std::sys::backtrace::BacktraceLock::print::h4a386d2ef944f43e
   4:     0x561c7a28d84c - std::panicking::default_hook::{{closure}}::h61b7aa0fc15f236b
   5:     0x561c7a28d759 - std::panicking::default_hook::h2d21379b0b23a14f
   6:     0x561c7a28ddef - std::panicking::rust_panic_with_hook::h100726ba9570b85a
   7:     0x561c7a2934aa - std::panicking::begin_panic_handler::{{closure}}::h141712493bfacf0c
   8:     0x561c7a2931a9 - std::sys::backtrace::__rust_end_short_backtrace::h891003731531c924
   9:     0x561c7a28d93d - rust_begin_unwind
  10:     0x561c7a2b1310 - core::panicking::panic_fmt::h1df68d570cb2382b
  11:     0x561c7a2b5936 - core::result::unwrap_failed::h846e3c141fa2fc46
  12:     0x561c794ee2db - core::result::Result<T,E>::unwrap::hf18803d4539b5aed
                               at /build/rustc-1.86.0-src/library/core/src/result.rs:1109:23
  13:     0x561c794ee2db - devfiler::main::h4fb01df7ea472f84
                               at /build/source/src/main.rs:56:9
  14:     0x561c7953f313 - core::ops::function::FnOnce::call_once::h30b60874d8ce7994
                               at /build/rustc-1.86.0-src/library/core/src/ops/function.rs:250:5
  15:     0x561c7953f313 - std::sys::backtrace::__rust_begin_short_backtrace::h6f94489fce630f76
                               at /build/rustc-1.86.0-src/library/std/src/sys/backtrace.rs:152:18
  16:     0x561c795a2d3d - std::rt::lang_start::{{closure}}::heee431325af4ba03
                               at /build/rustc-1.86.0-src/library/std/src/rt.rs:199:18
  17:     0x561c7a2692b5 - std::rt::lang_start_internal::he3cad277a2bdfe30
  18:     0x561c794ee3ec - main
  19:     0x7f387e02a47e - __libc_start_call_main
  20:     0x7f387e02a539 - __libc_start_main_impl
  21:     0x561c79490025 - _start
  22:                0x0 - <unknown>
Aborted (core dumped)

I compiled from git commit 05067fc8490a781b2a8b4b8cf0e3c36a428f4bd0 (main) with the command:

nix --experimental-features 'flakes nix-command' build '.?submodules=1#'

Versions:

$ uname -r
6.5.9-200.fc38.x86_64

$ grep PRETTY /etc/os-release 
PRETTY_NAME="Fedora Linux 38 (Workstation Edition)"

$ lspci -k | grep -A 3 -E "(VGA|3D)"
00:02.0 VGA compatible controller: Intel Corporation Skylake GT2 [HD Graphics 520] (rev 07)
	Subsystem: Lenovo Device 504a
	Kernel driver in use: i915
	Kernel modules: i915

$ glxinfo -B|grep -i direct
direct rendering: Yes

$ dnf list installed mesa-dri-drivers mesa-vulkan-drivers
Installed Packages
mesa-dri-drivers.i686                     23.1.9-1.fc38                 @updates
mesa-dri-drivers.x86_64                   23.1.9-1.fc38                 @updates
mesa-vulkan-drivers.i686                  23.1.9-1.fc38                 @updates
mesa-vulkan-drivers.x86_64                23.1.9-1.fc38                 @updates
Dominant language
Rust
Stars
131
Forks
20
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