硬件概览: 型号名称: MacBook Pro 型号标识符: MacBookPro11,4 处理器名称: Intel Core i7 处理器速度: 2.2 GHz 处理器数目: 1 核总数: 4 L2 缓存(每个核): 256 KB L3 缓存: 6 MB 内存: 16 GB ubuntu14 has no problem, but 18 has this problem, sometimes Mac OS display will mess with ubuntu18.04