Sounds like this crash might be independent from the NVIDIA driver then; to opt into the Beta from the command line, try this:
cd ~/.local/share/Steam/package
echo publicbeta > beta
Thanks! Unfortunately, the beta still crashes in the same libraries. :/ Any ideas how I can help youi debug this?
Upload one of the .dmp files saved on disk when this segmentation fault happens, so we can examine the crash condition.
Here's a fresh one:
https://www.dropbox.com/s/vxkp02dqjp59ttq/assert_20160120200041_1.dmp?dl=0
Good news? Today's beta update fixed things for me: Steam runs. But I really hope you guys know what you did that fixed it. Is that .dmp helpful? I'm happy to do anything you ask to help you understand the issue.
Closing per the last comment.
Nothing extracted yet.
I'm getting the following segmentation fault:
Inspecting with a debugger:
I tried reverting to older version of the NVIDIA driver with the same results. :( Everything worked fine a few days ago, I don't know what is wrong, but I can no longer use Steam.
Using the open source NVIDIA driver is not an option for me: my machine will not run at all with it. (I have a GTX 980.)
I hear there is a beta Steam client that might fix it, but how can I opt in to the beta when I can't run the client?!