[Linux] Window permanently freezes (window.unresponsive) on text insertion and dictation completion

What version of the Codex App are you using (From “About Codex” dialog)?

26.901.51231

What subscription do you have?

Plus / Free

What platform is your computer?

Linux 7.1.5-76070105-generic x86_64 (Pop!_OS 24.04 LTS, COSMIC Wayland)

What issue are you seeing?

Window freezes permanently when committing text / finishing voice dictation. D-Bus IBus portal causes ibus-ui-gtk3 segfault, deadlocking the Electron renderer.

What steps can reproduce the bug?

1. Launch ChatGPT 26.901.51231 on Wayland
2. Use voice dictation in composer
3. Stop dictation
4. App freezes permanently (window.unresponsive)

What is the expected behavior?

Transcribed or pasted text is inserted smoothly without freezing the UI.

Additional information

Full diagnostic logs, Sentry traces, and segfault dmesg are ready to paste. SingletonLock also remains stale after SIGKILL.

Electron & Sentry Logs

{"timestamp": 1788787959.749, "category": "ui.click", "message": "button...[aria-label="Зупинити диктування"][type="button"]"}
{"timestamp": 1788787965.075, "type": "http", "category": "electron.net", "data": {"url": "https://chatgpt.com/backend-api/transcribe", "method": "POST", "status_code": 200}}
{"timestamp": 1788787983.577, "category": "electron", "message": "window.unresponsive", "type": "ui", "data": {"id": 1, "url": "app://-/index.html"}}

[console] [IpcRouter] Socket error errorCode=EPIPE errorMessage="write EPIPE" errorName=Error

Kernel & IBus crash:

kernel: ibus-ui-gtk3[180867]: segfault at 0 ip 000057afbfc3ebbe sp 00007ffdbe143540 error 4 in ibus-ui-gtk3[11bbe,57afbfc3a000+27000]
ibus-portal[180875]: Not connected to the ibus bus
systemd[1772]: dbus-:1.1-org.freedesktop.portal.IBus@11.service: Main process exited, code=exited, status=1/FAILURE

Workaround:

Setting GTK_IM_MODULE=simple and clearing XMODIFIERS prevents the crash. Launching with --ozone-platform-hint=auto works reliably.

Start by reproducing the freeze on Pop!_OS 24.04 LTS with COSMIC Wayland using voice dictation, then review the Electron and Sentry logs alongside the ibus-ui-gtk3 and ibus-portal crash messages. Compare the failing launch with GTK_IM_MODULE=simple, cleared XMODIFIERS, and --ozone-platform-hint=auto; done means text insertion and dictation completion no longer freeze the window.