我尝试从启动器运行 steam，但始终无法打开。我steam在终端中运行，输出如下：
Running Steam on ubuntu 17.04 64-bit
STEAM_RUNTIME is enabled automatically
Installing breakpad exception handler for appid(steam)/version(1504757234)
libGL error: unable to load driver: r600_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: r600
libGL error: unable to load driver: r600_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: r600
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast
任何帮助都将不胜感激。我不知道该如何解决这个问题。