corfu + dabbrev autocompletion auto popup

[wjj1928]

I try below config, when I write below text:

xyzabc
xyzbcd
xyz

When my cursor at the third line after z, then I need press M-/ to popup the completion list.

What I expected is after I type the z, the completion list popup automatically.
Which config should be added for such purpose?

use-package corfu
  :ensure t
  :custom
  (corfu-auto t)
  (corfu-cycle t)
  (corfu-quit-at-boundary 'separator)
  (corfu-quit-no-match 'separator)
  (corfu-scroll-margin 0)
  (corfu-separator ?\s)
  (eldoc-add-command #'corfu-insert)
  (corfu-echo-documentation 0)
  (corfu-popupinfo-delay '(0.5 . 0.2))
  (corfu-auto-prefix 1)
   (corfu-on-exact-match nil)
  :config
  (global-corfu-mode)
  (corfu-history-mode)
  (corfu-popupinfo-mode +1)
  (use-package dabbrev
    :bind (("M-/" . dabbrev-completion)
           ("C-M-/" . dabbrev-expand)))
    (use-package kind-icon
		 :ensure t
    :custom
    (kind-icon-default-face 'corfu-default) ;; Compute blended background correctly
    :config
    (add-to-list 'corfu-margin-formatters #'kind-icon-margin-formatter))
  :hook (eglot-managed-mode . corfu-mode))

[jdtsmith]

Note that corfu does not control which completions are provided; your setup does. Dabbrev is not a CAPF, but it does call completion-at-point, which means corfu is utilized for its interface. To achieve what you want, you could use cape — specifically cape-capf-super — to composite your mode's normal CAPF with cape-dabbrev.

The other thing worth noting is that at any point you can switch to dabbrev completions just by hitting M-/. I have recently found that more useful.