首先查看steam日志，在/tmp/dumps/下，以“用户名_output.txt”命名。
$ cat /tmp/dumps/liuxu_output.txt Running Steam on ubuntu 15.10 64-bit STEAM_RUNTIME is enabled automatically Installing breakpad exception handler for appid(steam)/version(1457636973) 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
原因是steam用的lib文件太老，找到的结局办法是删掉即可，我个人是建议备份。
$ rm ~/.local/share/Steam/ubuntu12_32/steam-runtime/i386/usr/lib/i386-linux-gnu/libstdc++.so.6 $ rm ~/.local/share/Steam/ubuntu12_32/steam-runtime/i386/usr/lib/i386-linux-gnu/libgcc_s.so.1
参考：
1.https://bbs.archlinux.org/viewtopic.php?id=183659
见一楼，“Finally, I have tried removing libgcc_s.so.1 from /home/devin/.local/share/Steam/ubuntu12_32/steam-runtime/i386/lib/i386-linux-gnu and /home/devin/.local/share/Steam/ubuntu12_32/steam-runtime/amd64/lib/x86_64-linux-gnu as advised on https://github.com/ValveSoftware/steam- … ssues/3280 with the same results.”