---
title: "Discussion on \"Why Chromium/CEF apps render a black window under Wine (and how to fix it with macOS IOSurface)\" | Hashnode"
description: "Discussion on \"Why Chromium/CEF apps render a black window under Wine (and how to fix it with macOS IOSurface)\". Chromium/CEF apps open a black window under Wine because GPU compositing runs in a separate process. Here's how to bridge it with macOS IOSurface."
url: "https://hashnode.com/posts/why-chromium-cef-apps-render-a-black-window-under-wine-and-how-to-fix-it-with-macos-iosurface/6a38da18b314ca5a8e936888"
---

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# [Why Chromium/CEF apps render a black window under Wine (and how to fix it with macOS IOSurface)](https://niixo.hashnode.dev/why-chromium-cef-apps-render-a-black-window-under-wine-and-how-to-fix-it-with-macos-iosurface?utm_source=hashnode&utm_medium=feed)

Chromium/CEF apps open a black window under Wine because GPU compositing runs in a separate process. Here's how to bridge it with macOS IOSurface.

Jun 22 · 3 min read · niixo.hashnode.dev  
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-   [#macos](https://hashnode.com/tag/macos)
-   [#apple-silicon](https://hashnode.com/tag/apple-silicon)
-   [#chromium](https://hashnode.com/tag/chromium)
-   [#metal](https://hashnode.com/tag/metal)

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