DRM启动步骤

(Ubuntu18.04Server版本虚拟机测试OK)
(Orange Pi Zero2 Ubuntu20.04-arm64 测试OK)

Avalonia官方参考文档：https://docs.avaloniaui.net/docs/next/guides/platforms/rpi/running-on-raspbian-lite-via-drm

1.Linux端运行命令

sudo apt update  
sudo apt upgrade  
sudo reboot  
sudo apt - get install libgbm1 libgl1 - mesa - dri libegl1 - mesa libinput10

2.安装测试工具测试(出现一个彩色立方体说明环境安装完成)

sudo apt-get install kmscube
sudo kmscube

3.安装.net运行时(参考网址：https://learn.microsoft.com/zh-cn/dotnet/core/install/linux?WT.mc_id=dotnet-35129-website)

4.新建一个Avalonia项目，nuget里面添加Avalonia.LinuxFramebuffer包

5.添加StartLinuxDrm代码(不知道怎么添加看Semi.Avalonia.Demo.Drm项目代码)

6.发布程序到Linux(安装.net，怎么运行这些省略)

7.运行 ./Semi.Avalonia.Demo.Drm --drm

报错处理：

报错内容

Unhandled exception. Avalonia.Markup.Xaml.XamlLoadException: No precompiled XAML found for avares://Semi.Avalonia/Themes/Light/Light.axaml (baseUri: avares://Semi.Avalonia/Themes/Index.axaml), make sure to specify x:Class and include your XAML file as AvaloniaResource

解决方法：

如果使用Semi发布文件不要裁剪，如果裁剪会报错

报错内容

Unhandled exception. System.TypeInitializationException: The type initializer for 'SkiaSharp.SKImageInfo' threw an exception.** **--->System.DllNotFoundException: Unable to load shared library 'libSkiaSharp' or one of its dependencies.In order to help diagnose loading problems, consider setting the LD_DEBUG environment variable: liblibSkiaSharp: cannot open shared object file: No such file or directory at SkiaSharp.SkiaApi.sk_colortype_get_default_8888() at SkiaSharp.SKImageInfo..cctor()

解决方法：

Linux命令行安装一下 apt-get install -y libfontconfig1
参考网址：https://github.com/mono/SkiaSharp/issues/509

报错内容

Permission denied

解决方法：

sudo chmod +x ./Semi.Avalonia.Demo.Drm

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DRM启动步骤

报错处理：

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