I have added 32bit support and installed additional stuff through terminal.. and it still won't run.. I have AMD X4 620 and Radeon 6950 2gb.

The output of running it from the command line:

Running Steam on ubuntu 15.04 64-bit STEAM_RUNTIME is enabled automatically 
Installing breakpad exception handler for appid(steam)/version(1428965940) 
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

So after some research, I found the solution.

Open a terminal and run these commands:

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
  • 1
    I only had to delete libstdc++ and the folder was ~/.steam/uubntu12_32 ... But it worked! :) Do you have any more information on why this magic works? – brunch875 May 1 '15 at 11:02
  • Works for me :D – dibs May 8 '15 at 8:37
  • 1
    Thank you! This works for me (15.04, only the first line executed; the second file didn't exist). Steam opened up right away afterwards. – Lil' Bits Jun 2 '15 at 20:19
  • Didn't work for me on 15.10 – Philippe Gachoud Nov 11 '15 at 8:56
  • In 16.04 x64 works too. But I had only libstdc++.so.6. Radeon 5770 – fredcrs May 21 '16 at 2:22

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