New answers tagged bumblebee
Downgrade BIOS on Lenovo T440p from 2.22 to 1.14 resolved mine problems. BIOS update utility : http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS037575 I've ran file 'gluj04us.exe' (1.14 BIOS) from Windows 7, then Laptop restarted 3 times (flash operations). After 4th reboot laptop I've reinstalled Ubuntu 14.04 and every hardware stuff ...
Instead of running all of Steam with optirun I would suggest starting Steam normally and editing the program settings to use the launch command of "optirun %command%" (without the quotes). This will limit the memory of your graphics card to being used only by the game itself. I'm not sure if that will help with the other issues you are having but it may ...
Regular expressions can help you here. sudo apt-get purge nvidia* bumblebee* <any other packages>* You could also open synaptic package manager, search for primus and mark it for complete removal.
@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
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