Intel macOS: persistent blurred overlay in normal launch; --disable-gpu-compositing reveals UI but breaks colors #19930

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1. github-actions

   added

   bugSomething isn't workingSomething isn't working

   appIssues related to the Codex desktop appIssues related to the Codex desktop app

   on Apr 28, 2026
2. github-actions commented on Apr 28, 2026

   

   github-actionsBot

   on Apr 28, 2026 – with GitHub Actions

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

   • Mac app shows persistent blurred/translucent overlay below composer #18341
   • Plugin management UI/search overlay has severe blur/rendering artifacts #19677
   • macOS Intel: broken desktop UI rendering (clipped workspace/sidebar, malformed Plugins page, and broken slash-command overlay) #18774
   • Panel blocking content #18497
   • Codex desktop Plugins page is horizontally clipped on Intel Mac #19906

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3. kwj903 commented on Apr 28, 2026

   

   kwj903

   on Apr 28, 2026

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   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.
4. etraut-openai

   closed this as a duplicateof Mac app shows persistent blurred/translucent overlay below composer #18341 on Apr 28, 2026
5. iqdoctor commented on Apr 28, 2026

   

   iqdoctor

   on Apr 28, 2026

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   solution / fix:

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

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

   👍React with 👍1Reacted by focus
6. kwj903 commented on Apr 28, 2026

   

   kwj903

   on Apr 28, 2026

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