TypeScript LSP duplicating suggestions and overlays

[AndrewBarba]

Summary

The TypeScript LSP is showing double suggestions and overlays throughout the editor.

1. When hovering over a symbol, the overlay shows up twice stacked on top of each other
2. When typing, method and property names show up twice

Actual Behavior:

LSP hints are displayed twice

Expected Behavior:

LSP hints are displayed once

Zed Version and System Specs

Zed: v0.174.6 (Zed)
OS: macOS 15.3.1
Memory: 48 GiB
Architecture: aarch64

[devzeth]

What are the lsp's that are running for this file.
Execute cmd shift p, go to debug: language server logs, and check for this file how many lsp's are running by clicking on the first select:

[AndrewBarba]

Here ya go:

[devzeth]

@AndrewBarba can you click on the typescript-language-server(api) and show us what else is in that list?

[AndrewBarba]

Sure thing:

[AndrewBarba]

Worth noting, I originally had the Biome extension installed but that caused a lot of issues for me that I was going to open another issue for. I uninstalled it a couple days ago though, and I do not remember when exactly the double LSP hints issue came about.

[maxdeviant]

Sure thing:

It looks like you have both typescript-language-server and vtsls both running, which is the cause of the duplicate language server suggestions.

What does your settings.json look like, specifically the languages section?

[AndrewBarba]

Nothing defined per language:

{
  "theme": "Github Dark Dimmed",
  "features": {
    "edit_prediction_provider": "supermaven"
  },
  "assistant": {
    "default_model": {
      "provider": "copilot_chat",
      "model": "o3-mini"
    },
    "version": "2"
  },
  "ui_font_size": 15,
  "buffer_font_family": "SF Mono",
  "buffer_font_size": 13.0,
  "buffer_font_weight": 400,
  "terminal": {
    "font_family": "Zed Plex Mono",
    "font_size": 12,
    "line_height": "standard",
    "toolbar": {
      "breadcrumbs": false
    }
  }
}

[AndrewBarba]

I noticed this in the vtsls logs:

Looks like something is definitely starting up twice

[osiewicz]

That VTSLS log is kinda expected, as tsserver runs two servers under the hood.
Could you add the following to a languages section in settings? Does the issue still persist with this setting?

    "TypeScript": {
      "language_servers": ["!typescript-language-server", "vtsls", "..."]
    }

(You can also do the same for "TSX" and "JavaScript")

[konstrybakov]

Yep, I have the same problem, this is the languages part of the settings

[osiewicz]

I spoke to OP in private and it turned out that there was a .zed directory with custom settings.json in their project.
Folks, make sure you don't have something like:

"TypeScript": {
  "language_servers": ["biome-or-other-language-server", "..."]
}

anywhere; your language_servers should have either vtsls or typescript-language-server disabled.