{"record":{"id":"d5f52caadba3c031","repo":"Zackriya-Solutions/meetily","slug":"no-compatible-input-configuration-found-for-device","errorCode":null,"errorMessage":"No compatible input configuration found for device: {}","messagePattern":"No compatible input configuration found for device: (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"frontend/src-tauri/src/audio/devices/platform/windows.rs","lineNumber":165,"sourceCode":"                                        // Then try any F32 format\n                                        for config in &configs {\n                                            if config.sample_format() == cpal::SampleFormat::F32 {\n                                                let config = config.with_max_sample_rate();\n                                                // info!(\"Using F32 input config: {:?}\", config);\n                                                return Ok((device, config));\n                                            }\n                                        }\n\n                                        // Finally, use the first available config\n                                        let config = configs[0].with_max_sample_rate();\n                                        info!(\"Using fallback input config: {:?}\", config);\n                                        return Ok((device, config));\n                                    }\n                                } else {\n                                    warn!(\"Could not enumerate supported configurations for device: {}\", name);\n                                }\n\n                                return Err(anyhow!(\"No compatible input configuration found for device: {}\", name));\n                            }\n                        }\n                    }\n                }\n            }\n\n            // If we didn't find a matching device, try the default input device as fallback\n            info!(\"No matching input device found, trying default input device\");\n            if let Some(default_device) = wasapi_host.default_input_device() {\n                if let Ok(_name) = default_device.name() {\n                    // info!(\"Using default input device: {}\", _name);\n                    if let Ok(config) = default_device.default_input_config() {\n                        return Ok((default_device, config));\n                    } else if let Ok(supported_configs) = default_device.supported_input_configs() {\n                        if let Some(config) = supported_configs.into_iter().next() {\n                            return Ok((default_device, config.with_max_sample_rate()));\n                        }\n                    }","sourceCodeStart":147,"sourceCodeEnd":183,"githubUrl":"https://github.com/Zackriya-Solutions/meetily/blob/0281737d87d26352fb0adc78c8c0975f691b23d1/frontend/src-tauri/src/audio/devices/platform/windows.rs#L147-L183","documentation":"In get_windows_device's input branch (windows.rs:165): a WASAPI device whose name matched was found, but device.supported_input_configs() either returned Err (warn 'Could not enumerate' logged just above) or an empty list, so there is no configuration to build a stream from. Because the return happens inside the matched-device branch, the default-input-device fallback below never runs for this case - a matched-but-unusable device is a hard error.","triggerScenarios":"A Windows input device matched by name while it is disabled in Device Manager or in exclusive use by another app (exclusive mode reserves formats); a device whose formats failed enumeration (driver problem, misconfigured virtual cable); supported_input_configs() returning an empty iterator (Bluetooth HFP transition edge); a contains() match against a phantom/duplicated endpoint.","commonSituations":"Another conferencing app (Zoom/Teams with exclusive mode) holds the mic; mic disabled after a Windows update; a virtual cable (VB-Cable, VoiceMeeter) half-installed; selecting a Bluetooth headset while it is in A2DP playback mode rather than HFP call mode, so no input formats are exposed.","solutions":["Read the paired warn log to confirm which case it is (enumeration error vs empty list).","Free the device: close apps that may hold it, disable exclusive mode (Sound > device Properties > Advanced), re-enable the device in Device Manager.","For Bluetooth, switch the headset to communications/HFP mode (join a call or set it as default communications device) so input formats appear, or use a wired mic.","Power-cycle the Bluetooth/USB device to force driver re-initialization, then refresh the in-app device list and re-select.","If patching: remove the early return at windows.rs:165 so the shared default_input_device fallback handles the matched-but-no-configs case."],"exampleFix":"// before: matched device with no enumerable configs aborts before the fallback\nreturn Err(anyhow!(\"No compatible input configuration found for device: {}\", name));\n\n// after: fall through to the shared default-device fallback instead of failing here\nwarn!(\"No compatible input config for '{}', falling back to default input\", name);\n// (delete the early return; control flows to wasapi_host.default_input_device() below)","handlingStrategy":"fallback","validationCode":"// Probe format availability cheaply before committing to the device\nfn has_any_input_format(dev: &cpal::Device) -> bool {\n    dev.supported_input_configs().map(|mut it| it.next().is_some()).unwrap_or(false)\n}","typeGuard":null,"tryCatchPattern":"// Matched device unusable -> retry once with the default input device\nlet found = match get_windows_device(&dev) {\n    Ok(ok) => ok,\n    Err(e) if e.to_string().contains(\"No compatible input configuration\") => {\n        info!(\"Retrying with default input device\");\n        default_input_device_and_config()?\n    }\n    Err(e) => return Err(e),\n};","preventionTips":["Disable exclusive mode on shared mics (Sound settings > device > Advanced).","Close other conferencing apps before recording; they reserve input formats.","Re-enable/replug disabled devices and refresh the in-app device list.","Patch windows.rs so the matched-but-no-config branch falls through to the default-device fallback instead of returning early."],"tags":["windows","wasapi","cpal","input-device","device-config","exclusive-mode"],"backgroundTag":"audio-device-config-error","analyzedSha":"0281737d87d26352fb0adc78c8c0975f691b23d1","analyzedAt":"2026-08-16T20:57:52.567Z","schemaVersion":2},"datasetVersion":"2026-08-16T23:17:17.608Z"}