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M
搞定，buildroot勾选 haveged就ok了，这是什么问题呢？
A
@lyr2021 全屏buffer只是相对于lvgl的，送给LCD始终都是一个buffer，在滑动方向和LCD刷新方向不一致情况下比较能明显看到撕裂，可以参考https://os.51cto.com/article/646550.html