tui: image paste fails on WSL2/WSLg with libwayland-client 1.18 — Wayland clipboard backend is rejected, X11 fallback can't serve images #55639

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1. opencode-agent commented on Oct 15, 2026

   

   opencode-agentBot

   on Oct 15, 2026 – with OpenCode Agent

   Contributor

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   Thanks for the detailed report. I reproduced this on 2.0.29, and it still happens on the latest dev (4397ee4).

   What I did:

   • Ran a headless sway (Wayland) session.
   • Built libwayland-client.so.0 from wayland 1.18.0. It has no wl_proxy_marshal_array_flags.
   • Put a PNG on the clipboard with wl-copy --type image/png.
   • Pressed ctrl+v in the TUI.

   Results:

   • System (newer) libwayland: the prompt shows [Image 1].
   • libwayland 1.18 via LD_LIBRARY_PATH: nothing is attached and no error is shown, on both 2.0.29 and current dev.

   This fits your diagnosis that the Wayland backend is dropped when that symbol is missing, and your workaround of loading a newer libwayland. I couldn't reproduce the WSLg-specific X11 half (Xwayland serving only UTF8_STRING), because there was no X server in my setup. The loader itself lives in OpenTUI, so the fix will likely need to land there.

   The recording below shows the failing paste with libwayland 1.18 on 2.0.29. The script below reproduces both cases, and its header has the setup steps.

   recording.mp4

   Reproduction script (drive.ts)

   // Repro for anomalyco/opencode#55639: image paste does nothing when the loaded
   // libwayland-client is 1.18 (no wl_proxy_marshal_array_flags).
   //
   // Setup (Debian/Ubuntu):
   //   apt-get install -y sway wl-clipboard imagemagick meson ninja-build libffi-dev libexpat1-dev libxml2-dev
   //   curl -sL https://gitlab.freedesktop.org/wayland/wayland/-/archive/1.18.0/wayland-1.18.0.tar.gz | tar xz
   //   (cd wayland-1.18.0 && meson setup build -Ddocumentation=false && ninja -C build src/libwayland-client.so.0.3.0)
   //   mkdir -p /tmp/lib118 && cp -L wayland-1.18.0/build/src/libwayland-client.so.0 /tmp/lib118/
   //   export XDG_RUNTIME_DIR=/tmp/xdg WAYLAND_DISPLAY=wayland-1; mkdir -m700 -p $XDG_RUNTIME_DIR; unset DISPLAY
   //   WLR_BACKENDS=headless WLR_RENDERER=pixman WLR_LIBINPUT_NO_DEVICES=1 sway -c /dev/null &
   //   convert -size 32x32 xc:red red.png && wl-copy --type image/png < red.png
   // Run:
   //   opencode-drive run drive.ts                    # control: system libwayland -> "[Image 1]" attached
   //   LIBWL=/tmp/lib118 opencode-drive run drive.ts  # libwayland 1.18 -> nothing attached
   // LD_LIBRARY_PATH is passed only to the opencode process.
   import { Effect } from "effect"
   import { OpenCodeDriver } from "opencode-drive"
   
   const label = process.env.LIBWL ? "wayland-1_18" : "system-wayland"
   
   export default OpenCodeDriver.use(
     {
       opencode: {
         ...(process.env.OC_DEV ? { dev: process.env.OC_DEV } : {}),
         ...(process.env.LIBWL ? { env: { LD_LIBRARY_PATH: process.env.LIBWL } } : {}),
       },
       tui: { recording: true, keypressOverlay: true } },
     ({ ui }) =>
       Effect.gen(function* () {
         yield* Effect.sleep("2 seconds")
         yield* ui.screenshot(`${label}-before-paste`)
         yield* ui.press("v", { ctrl: true })
         yield* Effect.sleep("4 seconds")
         yield* ui.screenshot(`${label}-after-paste`)
         const frame = yield* ui.capture()
         yield* Effect.log(`[${label}] screen after ctrl+v:\n` + frame.lines.map((l: any) => l.spans.map((s: any) => s.text).join("").trimEnd()).filter(Boolean).join("\n"))
       }),
   )

   Run it with opencode-drive: opencode-drive run ./drive.ts. It drives opencode from your PATH; set OC_DEV to the path of an OpenCode checkout to run that from source instead.
2. opencode-agent

   added

   reproduced

   on Oct 15, 2026
3. simonklee

   added a commit that references this issue on Oct 29, 2026

   native: marshal Wayland requests without libwayland 1.20 (#1846)

   ...

   9a4e8cc
4. simonklee

   closed this as completedin #60385on Oct 30, 2026