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+id = 568
+title = "video memory option not working with Mac OS or Windows guest"
+state = "opened"
+created_at = "2021-08-26T20:48:42.106Z"
+closed_at = "n/a"
+labels = ["device:graphics"]
+url = "https://gitlab.com/qemu-project/qemu/-/issues/568"
+host-os = "Mac OS"
+host-arch = "ARM64"
+qemu-version = "version 6.0.94 (v6.1.0-rc4-dirty))"
+guest-os = "Mac OS"
+guest-arch = "x86_64"
+description = """The vgamem_mb option tells the guest how much video memory it has access to. When I used this command '-device VGA,vgamem_mb=128', I expect the guest to report there is 128 MB of video memory. What actually happens is the guest does not seem to know how much video memory is actually available."""
+reproduce = """**Mac OS guest:**
+1. Run a Mac OS guest with this command: -device VGA,vgamem_mb=128
+2. In Mac OS X open the System Information application -> /Applications/Utilities/System Information. 
+3. Click on "Graphics/Displays".
+4. Look at the 'VRAM (Total)' field.
+The field only shows 3 MB of video ram.
+
+**Windows guest:**
+1. Run a Windows (Windows XP in my case) guest with this command: -device VGA,vgamem_mb=128
+2. Click on Start->Run.
+3. Enter 'dxdiag'.
+4. Push the OK button.
+5. Click on the Display tap in the DirectX Diagnostic Tool.
+6. Look at the Approv. Total Memory field.
+The field should say 128 MB but actually says N/A."""
+additional = """**Mac OS 8.5<br>**
+![Mac_OS_10.8](/uploads/b80d67c82ec1236067b3577add10c19c/Mac_OS_10.8.png)<br><br><br>
+**Windows XP<br>**
+![Windows_XP](/uploads/9db71f35faa360dfcebc2b8af84abf06/Windows_XP.png)<br><br><br>
+**Windows 7<br>**
+![Windows_7](/uploads/8645f1424ef1637300056c889df3d7de/Windows_7.png)"""