I need to investigate this further but it looks like a bug in the driver package (the nvidia-331-prime alternative was not removed).
If you want to go back to a fully working system, you should do the following:
1) sudo update-alternatives --config x86_64-linux-gnu_gl_conf
2) Select the alternative that contains the word "mesa".
3) type:
sudo ldconfig
sudo update-initramfs -u
You might want to repeat the steps to fix the alternative for i386:
1) sudo update-alternatives --config i386-linux-gnu_gl_conf
Steps 2 and 3 are the same.
I need to investigate this further but it looks like a bug in the driver package (the nvidia-331-prime alternative was not removed).
If you want to go back to a fully working system, you should do the following:
1) sudo update-alternatives --config x86_64- linux-gnu_ gl_conf
2) Select the alternative that contains the word "mesa".
3) type:
sudo ldconfig
sudo update-initramfs -u
You might want to repeat the steps to fix the alternative for i386: gnu_gl_ conf
1) sudo update-alternatives --config i386-linux-
Steps 2 and 3 are the same.