Codex starts on KDE Wayland but never shows a window; X11 path crashes in EGL

[NtrpyDev]

Codex starts on KDE Wayland but never shows a window; X11 path crashes in EGL

Summary

On a KDE Plasma Wayland session, codex-app starts from its desktop launcher and shows a dock icon briefly, but no usable Codex window appears.

The packaged app forces Electron to use X11 on Linux:

process.platform === `linux` && (
  process.env.ELECTRON_OZONE_PLATFORM_HINT = `x11`,
  app.commandLine.appendSwitch(`ozone-platform`, `x11`)
);

On this machine, that path crashes while Electron creates its graphics surface. Removing the forced-X11 code starts the renderer on native Wayland and stops the EGL crash. It still does not create a visible window.

Steps to reproduce

1. Log in to KDE Plasma on Wayland.
2. Install and launch am-will/codex-app v26.707.31428 from its desktop entry.
3. Wait about 10–15 seconds.

Expected: a visible Codex window that can receive input.

Actual: the dock icon appears, but no Codex window is visible or usable. With the shipped X11 forcing enabled, Codex writes GPU-process failures and then creates a core dump.

Environment

• OS: CachyOS Linux
• Kernel: 7.1.1-2-cachyos
• Desktop session: KDE Plasma 6.7.1 on Wayland
• Window manager: KWin 6.7.1
• GPU: AMD Radeon RX 9070 XT (Navi 48)
• Kernel GPU driver: amdgpu
• Mesa: 26.1.2-arch3.1
• OpenGL renderer: AMD Radeon RX 9070 XT (radeonsi, gfx1201, ACO, DRM 3.64, 7.1.1-2-cachyos)
• App: am-will/codex-app v26.707.31428, installed from the GitHub release published 2026-07-10
• Bundled Electron: 42.1.0

Relevant logs

ERROR:gpu/ipc/client/command_buffer_proxy_impl.cc:285] ContextResult::kTransientFailure: Failed to send GpuControl.CreateCommandBuffer.
ERROR:content/browser/gpu/gpu_process_host.cc:999] GPU process exited unexpectedly: exit_code=139
Recoverable Chromium child process gone exitCode=139 name=null processType=GPU reason=crashed serviceName=GPU
ERROR:ui/base/x/x11_software_bitmap_presenter.cc:147] XGetWindowAttributes failed for window 1

The user-session coredump points at EGL_CreateWindowSurface:

Process ... (Codex) of user 1000 dumped core.
#4 EGL_CreateWindowSurface (libGLESv2.so)
#5 eglCreateWindowSurface (libEGL.so)

What I tried

Test	Result
Launch the unmodified desktop entry	No visible window; GPU helper crashes and Codex later dumps core.
--disable-gpu	Codex exits with GPU access not allowed; it cannot use this mode.
--disable-gpu-compositing	No visible window.
LIBGL_ALWAYS_SOFTWARE=1 while using the shipped X11 path	No visible window.
Remove the hard-coded X11 forcing and let Electron use Wayland	Renderer runs with --ozone-platform=wayland and the EGL crash stops, but no visible window appears.

The modified archive was restored after testing. No workaround is currently applied.

Request

Please test the Linux X11/Ozone patch on a KDE Wayland session, especially with recent AMD/Mesa drivers. The package needs a supported way to select its display backend. It should not always force --ozone-platform=x11.