fatal error: lv_port_disp.h: No such file or directory

fatal error: lv_port_disp.h: No such file or directory是一个编译错误，提示找不到lv_port_disp.h文件或目录。根据提供的引用内容，有两种可能的解决方案。引用中提到，从Ubuntu 20.04开始，SUBDIR=不再被支持，应改为M=。因此，您可以尝试使用以下命令进行编译：

sudo make -C /usr/src/linux-headers-5.11.0-1021-raspi M=$PWD modules

引用中提到，另一种解决方法是执行以下命令：

sudo make -C /usr/src/linux-headers-5.11.0-1021-raspi SUBDIRS=$PWD modules

这些命令将进入相应的目录并编译模块，确保找到所需的文件。请根据您的实际情况选择适用的解决方案。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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