77 lines
3.8 KiB
Markdown
77 lines
3.8 KiB
Markdown
# DRM启动步骤
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(Ubuntu18.04Server版本 虚拟机测试OK)
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(Orange Pi Zero2 Ubuntu20.04-arm64 测试OK)
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Avalonia官方参考文档：https://docs.avaloniaui.net/docs/next/guides/platforms/rpi/running-on-raspbian-lite-via-drm
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1.Linux端运行命令
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```
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sudo apt update
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sudo apt upgrade
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sudo reboot
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sudo apt - get install libgbm1 libgl1 - mesa - dri libegl1 - mesa libinput10
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```
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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)
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```
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sudo apt-get install kmscube
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sudo kmscube
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```
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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)
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4.新建一个Avalonia项目，nuget里面添加Avalonia.LinuxFramebuffer包
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5.添加StartLinuxDrm代码(不知道怎么添加看Semi.Avalonia.Demo.Drm项目代码)
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6.发布程序到Linux(安装.net，怎么运行这些省略)
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7.运行 ./Semi.Avalonia.Demo.Drm --drm
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## 报错处理：
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1. 报错内容
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>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
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解决方法：
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>如果使用Semi发布文件不要裁剪，如果裁剪会报错
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2. 报错内容
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>Unhandled exception. System.TypeInitializationException: The type initializer for 'SkiaSharp.SKImageInfo' threw an exception.**
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**--->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
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at SkiaSharp.SkiaApi.sk_colortype_get_default_8888()
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at SkiaSharp.SKImageInfo..cctor()
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解决方法：
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>Linux命令行安装一下 apt-get install -y libfontconfig1
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参考网址：https://github.com/mono/SkiaSharp/issues/509
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3. 报错内容
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>Permission denied
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解决方法：
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>sudo chmod +x ./Semi.Avalonia.Demo.Drm
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4. 报错内容
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>Unhandled exception. System.ComponentModel.Win32Exception (95): drmModeGetResources failed
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at Avalonia.LinuxFramebuffer.Output.DrmResources..ctor(Int32 fd, Boolean connectorsForceProbe) in /_/src/Linux/Avalonia.LinuxFramebuffer/Output/DrmBindings.cs:line 91
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at Avalonia.LinuxFramebuffer.Output.DrmCard.GetResources(Boolean connectorsForceProbe) in /_/src/Linux/Avalonia.LinuxFramebuffer/Output/DrmBindings.cs:line 171
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at Avalonia.LinuxFramebuffer.Output.DrmOutput..ctor(String path, Boolean connectorsForceProbe, DrmOutputOptions options) in /_/src/Linux/Avalonia.LinuxFramebuffer/Output/DrmOutput.cs:line 60
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at LinuxFramebufferPlatformExtensions.StartLinuxDrm(AppBuilder builder, String[] args, String card, Double scaling, IInputBackend inputBackend) in /_/src/Linux/Avalonia.LinuxFramebuffer/LinuxFramebufferPlatform.cs:line 166
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at Semi.Avalonia.Demo.Drm.Program.Main(String[] args)
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解决方法：
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>`program.cs`的显卡路径错误，可能不是`dev/dri/card1`，看在`dev/dri`目录下有无其他的显卡如`card0`。
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5. 报错内容
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>Unhandled exception. System.ComponentModel.Win32Exception (2): Couldn't open /dev/dri/card1
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at Avalonia.LinuxFramebuffer.Output.DrmCard..ctor(String ) in /_/src/Linux/Avalonia.LinuxFramebuffer/Output/DrmBindings.cs:line 167
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at Avalonia.LinuxFramebuffer.Output.DrmOutput..ctor(String , Boolean , DrmOutputOptions ) in /_/src/Linux/Avalonia.LinuxFramebuffer/Output/DrmOutput.cs:line 58
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at LinuxFramebufferPlatformExtensions.StartLinuxDrm(AppBuilder, String[], String , Double , IInputBackend ) in /_/src/Linux/Avalonia.LinuxFramebuffer/LinuxFramebufferPlatform.cs:line 166
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at Semi.Avalonia.Demo.Drm.Program.Main(String[])
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解决办法：
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>找不到显卡路径`dev/dri/card1`，可能是显卡挂载到别的文件夹下了，待解决。 |