failed to open DRM:No such file or directory

[WangPeng888]

已实现lcd驱动，有/dev/dri/card0设备。也使用modetest -M rockchip xxx测试了显示屏，是ok的。 运行qt程序的时候报了这个错误. 请问这个问题怎么解决啊？

[root@RV1126_RV1109:~]# ./qt_test failed to open DRM:No such file or directory. Rga built version:version:1.00 "pine" "pineapples" failed to open DRM:No such file or directory. failed to open DRM:No such file or directory. failed to open DRM:No such file or directory. failed to open DRM:No such file or directory.