Originally Posted by phenixia2003
I have. It's the first thing I do if a Steam game gives me trouble.
Originally Posted by Alien Bob
I had the 32-bit part of NVIDIA driver installed.
32-bit non-Steam games were working just fine.
Anyway, I decided to reinstall Slackware again.
Then downloaded the multilib and applied.
Installed Steam and made sure that it works with Nouveau first.
Then I proceeded with NVIDIA driver v334.21
For now it is working fine.
If it breaks again I will reopen the thread.
Thanks to all for the feedback.