Okay... That's the direction I need to look into this evening before getting into sorting all the miscellaneous issues with Bandits I've on my plate tonight. That means a different machine to attempt a fresh install on.
There's some edge issues with Alsa and with PulseAudio (and they're different) so I needed to know what to check into to come up with a possible answer for you (and for myself- but I've had so much other stuff going on I'd kind of shelved the problem... ).
How to get it to all work nicely, what I did for Platinum was as follows:
Follow the forum install steps.
Drop the 1.69 patch set on the machine.
Alter the "nwn" script to not put the SDL version that they provide in the Lib path- it's got some issues, use the one from Ubuntu instead.
This has the effect of making everything pretty much work right without crashes. However nwnmovie does NOT work right (cores...) with this configuration I described (Which is annoying, but I never did pull it down before this and use it- so...); since the movie cutscenes aren't all that important anyhow...
icculus "patch"? What patch would this be? I don't remember Ryan hosting any patches for NWN on the site...
Now, if you're talking about the Loki Installer installation programs from off of icculus.org, you should know that those installers Raven did for the community only work with the specified versions of software they claim to be written for. If you've got the Gold edition, you can use that one and expect it to all work right with 7.10. If you've got the Platinum or Diamond versions, you HAVE to follow the steps as described in the forums, or you will not end up with the right files mix for those versions and it will just simply crash on you (I know, I'd tried a few things deviating from it with the Gold installer with the Platinum set I had- it didn't work until I wiped the install and followed the Platinum install steps from the forums...).
Anyhow, there's a line in the "nwn" script that references "export LD_LIBRARY_PATH=./lib:<and so forth...>". You have to have that in order for the MILES libraries to load up properly as well. If you don't have that in your nwn script, you're going to have a much more difficult time of it making this work without doing a clean reinstall. If you DO have that line as described, you just remove the "./lib" (and ONLY that) part of the line and it should use the system's copy of SDL at that point in time.