RK3399在Android9中屏幕黑屏
现象：rk3399可以正常开机进入系统，并且除开视频播放的其他运用都是正常的，但是但是：只要一打开视频播放app，屏幕立马黑屏，从logcat上看，
09-15 09:50:36.67213811398 D : set stream to NULL
09-15 09:50:36.69913811398 I chatty: uid=10035(com.android.gallery3d) RenderThread identical 4 lines
09-15 09:50:36.70613811398 D : set stream to NULL
09-15 09:50:36.742 254 254 E hwc_rk: hwc_get_handle_layername:cann't get value from gralloc
09-15 09:50:36.746 450 464 I ActivityManager: Displayed com.android.packageinstaller/.permission.ui.GrantPermissionsActivity: +468ms
09-15 09:50:36.759 254 254 E hwc_rk: hwc_get_handle_layername:cann't get value from gralloc
09-15 09:50:36.879 254 254 I chatty: uid=1000(system) composer@2.1-se identical 7 lines
09-15 09:50:36.896 254 254 E hwc_rk: hwc_get_handle_layername:cann't get value from gralloc
是gralloc无法分配内存。请教一下这个问题有修复吗？？
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