Iced 0.14.0 used dGPU instead of iGPU by default #3143
Description
Is your issue REALLY a bug?
- My issue is indeed a bug!
- I am not crazy! I will not fill out this form just to ask a question or request a feature. Pinky promise.
Is there an existing issue for this?
- I have searched the existing issues.
Is this issue related to iced?
- My hardware is compatible and my graphics drivers are up-to-date.
What happened?
I have an application (bb-imager) using iced 0.13.1. I recently tried migrating it to 0.14.0. However, I started observing some visual glitches after the migration. Looking at the logs, it seems like 0.14 uses Nvidia dGPU while 0.13.1 was defaulting to iGPU.
Here are the logs from 0.13.1:
2025-12-12T06:03:33.337503Z INFO iced_wgpu::window::compositor: Available adapters: [
AdapterInfo {
name: "AMD Radeon Graphics (RADV RENOIR)",
vendor: 4098,
device: 5686,
device_type: IntegratedGpu,
driver: "radv",
driver_info: "Mesa 25.1.9",
backend: Vulkan,
},
AdapterInfo {
name: "NVIDIA GeForce GTX 1650 Ti (NVK TU117)",
vendor: 4318,
device: 8085,
device_type: DiscreteGpu,
driver: "NVK",
driver_info: "Mesa 25.1.9",
backend: Vulkan,
},
AdapterInfo {
name: "llvmpipe (LLVM 20.1.8, 256 bits)",
vendor: 65541,
device: 0,
device_type: Cpu,
driver: "llvmpipe",
driver_info: "Mesa 25.1.9 (LLVM 20.1.8)",
backend: Vulkan,
},
AdapterInfo {
name: "AMD Radeon Graphics (radeonsi, renoir, ACO, DRM 3.64, 6.17.10-300.fc43.x86_64)",
vendor: 4098,
device: 0,
device_type: Other,
driver: "",
driver_info: "",
backend: Gl,
},
]
2025-12-12T06:03:33.347624Z INFO wgpu_core::instance: Adapter Vulkan AdapterInfo { name: "AMD Radeon Graphics (RADV RENOIR)", vendor: 4098, device: 5686, device_type: IntegratedGpu, driver: "radv", driver_info: "Mesa 25.1.9", backend: Vulkan }
2025-12-12T06:03:33.347718Z INFO iced_wgpu::window::compositor: Selected: AdapterInfo {
name: "AMD Radeon Graphics (RADV RENOIR)",
vendor: 4098,
device: 5686,
device_type: IntegratedGpu,
driver: "radv",
driver_info: "Mesa 25.1.9",
backend: Vulkan,
}
Here are the outputs from 0.14:
2025-12-12T06:01:51.497144Z INFO iced_wgpu::window::compositor: Available adapters: [
AdapterInfo {
name: "AMD Radeon Graphics (RADV RENOIR)",
vendor: 4098,
device: 5686,
device_type: IntegratedGpu,
driver: "radv",
driver_info: "Mesa 25.1.9",
backend: Vulkan,
},
AdapterInfo {
name: "NVIDIA GeForce GTX 1650 Ti (NVK TU117)",
vendor: 4318,
device: 8085,
device_type: DiscreteGpu,
driver: "NVK",
driver_info: "Mesa 25.1.9",
backend: Vulkan,
},
AdapterInfo {
name: "llvmpipe (LLVM 20.1.8, 256 bits)",
vendor: 65541,
device: 0,
device_type: Cpu,
driver: "llvmpipe",
driver_info: "Mesa 25.1.9 (LLVM 20.1.8)",
backend: Vulkan,
},
AdapterInfo {
name: "AMD Radeon Graphics (radeonsi, renoir, ACO, DRM 3.64, 6.17.10-300.fc43.x86_64)",
vendor: 4098,
device: 0,
device_type: Other,
driver: "",
driver_info: "4.6 (Core Profile) Mesa 25.1.9",
backend: Gl,
},
]
2025-12-12T06:01:51.497332Z WARN wgpu_hal::gles::egl: Re-initializing Gles context due to Wayland window
2025-12-12T06:01:51.526082Z INFO iced_wgpu::window::compositor: Selected: AdapterInfo {
name: "NVIDIA GeForce GTX 1650 Ti (NVK TU117)",
vendor: 4318,
device: 8085,
device_type: DiscreteGpu,
driver: "NVK",
driver_info: "Mesa 25.1.9",
backend: Vulkan,
}
Here are my system details:
OS: Fedora 43 Sway Atomic
DE: Sway
What is the expected behavior?
I would expect most normal applications to run on iGPU in multi-gpu setups. At the very least, there should be a way to force iced or wgpu to prefer iGPU instead of dGPU by default.
Version
crates.io release
Operating System
Linux