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Codex Issues / #19930

Intel macOS: persistent blurred overlay in normal launch; --disable-gpu-compositing reveals UI but breaks colors

Resolved 💬 4 comments Opened Apr 28, 2026 by kwj903 Closed Apr 28, 2026
💡 Likely answer: A maintainer (github-actions[bot], contributor) responded on this thread — see the highlighted reply below.

Device:

  • MacBook Pro 16-inch 2019 Intel
  • x86_64

Codex:

  • Desktop app version: 26.422.30944
  • Electron: 41.2.0
  • Bundled codex: 0.125.0-alpha.3

Symptoms:

  1. Normal launch shows persistent blurred/translucent overlay below composer.
  2. The overlay blocks or hides expected home UI.
  3. --disable-gpu does not show usable app; process remains alive at 100% CPU.
  4. --disable-gpu-compositing reveals the expected UI elements, but composer/input area renders as bright cyan.
  5. Plugin page also shows rendering/skeleton/blur artifacts.

Commands tested:

  • open -na /Applications/Codex.app
  • open -na /Applications/Codex.app --args --disable-gpu
  • open -na /Applications/Codex.app --args --disable-gpu-compositing

ps output:

  • Codex --disable-gpu process remains alive with high CPU
  • Codex --disable-gpu-compositing process also runs

View original on GitHub ↗

4 Comments

github-actions[bot] contributor · 4 months ago

Potential duplicates detected. Please review them and close your issue if it is a duplicate.

  • #18341
  • #19677
  • #18774
  • #18497
  • #19906

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kwj903 · 4 months ago

Thanks for the duplicate suggestions.

This does look related to #18341 and #18774, especially the persistent blurred/translucent overlay on Intel macOS.

I wanted to add my repro details because there are a few additional behaviors on my machine:

  • Normal launch shows a persistent blurred/translucent overlay below the composer, hiding or blocking the expected home UI.
  • open -na /Applications/Codex.app reproduces the issue.
  • open -na /Applications/Codex.app --args --disable-gpu does not show a usable app window for me; the process remains alive and appears to consume high CPU.
  • open -na /Applications/Codex.app --args --disable-gpu-compositing reveals the expected UI elements, but the composer/input area renders as bright cyan.
  • The plugins page also shows blur/rendering artifacts.

Environment

  • MacBook Pro 16-inch 2019 Intel
  • macOS Intel / x86_64
  • Codex Desktop version: 26.422.30944
  • Electron: 41.2.0
  • Bundled Codex CLI: 0.125.0-alpha.3

If this should be tracked under #18341 or #18774, feel free to close this as a duplicate. I’m mainly adding this issue because --disable-gpu hangs while --disable-gpu-compositing reveals the hidden UI but breaks colors, which may help narrow down the compositor/rendering path.

iqdoctor · 4 months ago

solution / fix:

open -na "/Applications/Codex.app" --args --force_high_performance_gpu

source: https://x.com/colins_space/status/2048193500190318631

kwj903 · 4 months ago

The problem has been resolved. Thank you for your advice.