agung@agung-K43SJ:~$ steam
Running Steam on ubuntu 15.04 64-bit
STEAM_RUNTIME is enabled automatically
Installing breakpad exception handler for appid(steam)/version(0)
libGL error: unable to load driver: nouveau_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: nouveau
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast
在此之前，我也尝试从终端安装 Steam，但在下载更新后它没有启动。
谁能帮我找到安装 Steam 的解决方案？