[Ubuntu-zh] 兄弟们，root和普通用户运行 glxgears报错有所不同，有什么解决方法么？

[左倾]

root：
libGL warning: 3D driver claims to not support visual 0x4b
1447 frames in 5.0 seconds = 289.355 FPS
1283 frames in 5.0 seconds = 256.573 FPS

普通用户：
libGL error: open DRM failed (Operation not permitted)
libGL error: reverting to (slow) indirect rendering
1474 frames in 5.2 seconds = 283.585 FPS
XIO:  fatal IO error 104 (Connection reset by peer) on X server ":0.0"
      after 4777 requests (4191 known processed) with 0 events remaining.
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