fix(lsp): use proper buffer for dynamic capabilities. Fixes #3246

lua/lazyvim/util/lsp.lua

@@ -43,12 +43,13 @@ function M.setup()
     ---@diagnostic disable-next-line: no-unknown
     local ret = register_capability(err, res, ctx)
     local client = vim.lsp.get_client_by_id(ctx.client_id)
-    local buffer = vim.api.nvim_get_current_buf()
     if client then
-      vim.api.nvim_exec_autocmds("User", {
+      for buffer in ipairs(client.attached_buffers) do
-        pattern = "LspDynamicCapability",
+        vim.api.nvim_exec_autocmds("User", {
-        data = { client_id = client.id, buffer = buffer },
+          pattern = "LspDynamicCapability",
-      })
+          data = { client_id = client.id, buffer = buffer },
+        })
+      end
     end
     return ret
   end
@@ -58,6 +59,18 @@ end
 
 ---@param client vim.lsp.Client
 function M._check_methods(client, buffer)
+  -- don't trigger on invalid buffers
+  if not vim.api.nvim_buf_is_valid(buffer) then
+    return
+  end
+  -- don't trigger on non-listed buffers
+  if not vim.bo[buffer].buflisted then
+    return
+  end
+  -- don't trigger on nofile buffers
+  if vim.bo[buffer].buftype == "nofile" then
+    return
+  end
   for method, clients in pairs(M._supports_method) do
     clients[client] = clients[client] or {}
     if not clients[client][buffer] then