Steam Ubuntu 14.04 libGL.so.1 Bumblebee
For the optimus-based ssytems, you need generic mesa libraries for normal operation, and then bumblebee will switch to the NVidia's ones when needed.
These links are actually controlled by the alternatives mechanism.
To choose which one you would like to use invoke:
$ sudo update-alternatives --config i386-linux-gnu_gl_conf
There are 3 choices for the alternative i386-linux-gnu_gl_conf (providing /etc/ld.so.conf.d/i386-linux-gnu_GL.conf).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/nvidia-331-updates/alt_ld.so.conf 8604 auto mode
* 1 /usr/lib/i386-linux-gnu/mesa/ld.so.conf 500 manual mode
2 /usr/lib/nvidia-331-updates-prime/alt_ld.so.conf 8603 manual mode
3 /usr/lib/nvidia-331-updates/alt_ld.so.conf 8604 manual mode
Press enter to keep the current choice[*], or type selection number:
Be sure to set up the mesa one.
Same for the 64bit libraries:
$ sudo update-alternatives --config x86_64-linux-gnu_gl_conf
There are 3 choices for the alternative x86_64-linux-gnu_gl_conf (providing /etc/ld.so.conf.d/x86_64-linux-gnu_GL.conf).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/lib/nvidia-331-updates/ld.so.conf 8604 auto mode
1 /usr/lib/nvidia-331-updates-prime/ld.so.conf 8603 manual mode
2 /usr/lib/nvidia-331-updates/ld.so.conf 8604 manual mode
* 3 /usr/lib/x86_64-linux-gnu/mesa/ld.so.conf 500 manual mode
Press enter to keep the current choice[*], or type selection number:
Reboot the system afterwards and try launching steam again.
@DavidWinchester running this command (below) works well:
sudo ln -s /usr/lib/i386-linux-gnu/mesa/libGL.so.1 /usr/lib/libGL.so.1
thanks for posting the question