tui not working well with emacs-libvterm. claude and codex work fine

just noticed that opencode doesn't work well in emacs-libvterm.

i recently switched to emacs-libvterm from emacs-multiterm which didn't support claude or codex at all. they both work great with emacs-libvterm.

just re-installed opencode to give it a try, and it doesn't work at all.

not sure if this is emacs-libvterm only or all libvterms.

not a huge deal, just fyi. keep up the good work 🫡

This issue might be a duplicate of existing issues. Please check:

Can’t use on remote machine via SSH — issues with text rendering / layout #2843: Similar TUI rendering issues in specific terminal environments (SSH via iPad + Blink)
Unusable scrambled TUI #2762: Unusable scrambled TUI in certain Linux terminal environments
TUI looks horrible after a single prompt #2697: TUI display problems after prompts in Linux terminals
Visual TUI bug on startup #2700: Visual TUI bugs on startup in specific terminal configurations
Themes broken in Zed's terminal #2801: Theme/display issues in Zed's terminal environment

Feel free to ignore if none of these address your specific case.

interesting thx for raising

@nathants

@nathants Here's a workaround that worked for me:

  (setq shell-default-term-shell "screen <YOUR SHELL HERE>")

The issue seems to be that Emacs vterm doesn't update the terminal window size (tput cols and tput rows don't change when you resize the window).

I guess Claude and Codex work because they aren't really TUI apps.

Duplicate of #431

Fixed by setting the "system" theme:

Write to ~/.config/opencode/opencode.jsonc

{
  "$schema": "https://opencode.ai/config.json",
  "theme": "system"
}

@paralin

wow nice find didn't see that old issue.

Closing as dup thanks @paralin

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