Steam won't start. At first these errors were given:
STEAM_RUNTIME is enabled automatically
Installing breakpad exception handler for appid(steam)/version(1437790054)
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
But after running these two commands from another question on this site (only the second file existed):
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/lib/i386-linux-gnu/libgcc_s.so.1
the errors have become this:
Repairing installation, linking /home/calvin/.steam/steam to /home/calvin/.local/share/Steam
Running Steam on ubuntu 17.10 64-bit
STEAM_RUNTIME is enabled automatically
Installing breakpad exception handler for appid(steam)/version(0)
/home/calvin/.local/share/Steam/ubuntu12_32/steam: symbol lookup error: /usr/lib/i386-linux-gnu/libxcb-dri3.so.0: undefined symbol: xcb_send_request_with_fds
/home/calvin/.local/share/Steam/steam.sh: line 444: no match: ssfn*
What can I do?
Following these three steps, Steam launches now from Show Applications list in gnome.
I ran the above commands one line at a time, and that seems to have fixed the issue. I was getting a similar error to OP (see below)