Unable to initialize Zed/Blade on MSI Katana 15 laptop

[kvark]

Submitted by @Blaeriz

Zed/Blade fails

Hardware

MSI Katana 15 B13VEK (REV:1.0)
13th Gen Intel(R) Core(TM) i7-13620H (16) @ 4.90 GHz
NVIDIA GeForce RTX 4050 Max-Q / Mobile [Discrete]
Intel UHD Graphics @ 1.50 GHz [Integrated]

Zed error

2025-05-01T22:42:39+05:30 WARN  [blade_graphics::hal::surface] Rejected for not presenting to the window surface
2025-05-01T22:42:39+05:30 INFO  [*unknown*] read_socket;
2025-05-01T22:42:39+05:30 INFO  [*unknown*] read_socket;
2025-05-01T22:42:39+05:30 ERROR [zed::reliability] {
  "thread": "main",
  "payload": "called `Result::unwrap()` on an `Err` value: PlatformNotSupported",
  "location_data": {
    "file": "crates/gpui/src/platform/blade/blade_renderer.rs",
    "line": 345
  },
  "backtrace": [
    "__libc_start_main+28632016848745"
  ],
  "app_version": "0.184.8",
  "release_channel": "stable",
  "target": "x86_64-unknown-linux-gnu",
  "os_name": "Linux Wayland",
  "os_version": "arch unknown",
  "architecture": "x86_64",
  "panicked_on": 1746119559419,
  "system_id": "f708bdd3-e126-4c85-98fd-0a49fa2b1518",
  "installation_id": "2a07361d-bf80-4b0a-812b-ce3626cc6dca",
  "session_id": "9e01d921-ba0e-49de-be24-14fc8a7a9d66"
}

VKcube behavior

kesh : ~ > $ vkcube --wsi wayland --gpu_number 0 
Selected GPU 0: NVIDIA GeForce RTX 4050 Laptop GPU, type: DiscreteGpu Could not find both graphics and present queues 

 kesh : ~ > $ vkcube --wsi wayland --gpu_number 1
Selected GPU 1: Intel(R) Graphics (RPL-P), type: IntegratedGpu

Driver Versions

 kesh : ~ > $ vulkaninfo | grep driverVersion
    driverVersion     = 570.144.0.0 (2393112576)
    driverVersion     = 25.0.4 (104857604)

[kvark]

On one hand, we can augment the selection of the physical GPU by trying to create a fake window and presenting on it. This would rule out the NVidia GPU in this case and allow Zed to run on Intel.
On the other hand, this GPU appears to be mis-configured in the system? You can't run any presentation on it (which vkcube proves), so it would only be useful for some ML based workloads. So a better fix would be to properly configure the system.
There is also a workaround available in Zed now - zed-industries/zed#29235

[Blaeriz]

On one hand, we can augment the selection of the physical GPU by trying to create a fake window and presenting on it. This would rule out the NVidia GPU in this case and allow Zed to run on Intel.
On the other hand, this GPU appears to be mis-configured in the system? You can't run any presentation on it (which vkcube proves), so it would only be useful for some ML based workloads. So a better fix would be to properly configure the system.
There is also a workaround available in Zed now - zed-industries/zed#29235

I'm sorry I don't exactly understand what you mean by 'misconfigured'

[kvark]

Let me clarify. You posted results from running vkcube (the standard Vulkan sample) on the NVidia GPU:

vkcube --wsi wayland --gpu_number 0 
Selected GPU 0: NVIDIA GeForce RTX 4050 Laptop GPU, type: DiscreteGpu Could not find both graphics and present queues 

On your platform, Vulkan can't present when using the dedicated GPU. That makes the GPU useless for anything but ML workloads. It's not a normal situation. Normally, you'd expect to be able to present with either GPU.