After installing Steam in Ubuntu 15.04 x64 it won't start.

After trying this command in terminal steam I get this output:

Running Steam on ubuntu 15.04 64-bit
STEAM_RUNTIME is enabled automatically
Installing breakpad exception handler for appid(steam)/version(0_client)
libGL error: unable to load driver: radeonsi_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: radeonsi
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast

And also steam --reset command gave this output:

mv: cannot stat ‘/home/[USER]/.steam/registry.vdf’: No such file or directory
Installing bootstrap /home/[USER]/.local/share/Steam/bootstrap.tar.xz
Reset complete!

I tried this and nothing else. I have AMD graphic card with Xorg drivers.


check the Problem with installing Steam on Ubuntu 15.04 post.

This problem don't seem to affect the closed source drivers, only the open ones.


After reinstalling Steam and then switching to proprietary drivers for my AMD graphic card it's finally working for me.


This works fine for me under Ubuntu 15.04 64bits with proprietary driver NVIDIA version 346 and the latest steam client:

LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/lib32/nvidia-346/:/usr/lib/nvidia-346/" steam