yes but how did you try to update kernel
If you are at the command line prompt.....the links to bumblebee should still work for you
yes you appear to have issues with xorg
---I am not an expert at bumblebee, but suggest we use this post to try and resolve it.
I will offer some links, some are info links but lets start with facts
1) from your local alsa file we know that you have a 64 bit kernel and its version is 3.8.0-19-generic
I'm pretty sure my kernal is the latest
we will discuss that later
2) you have installed bumblebee but as I did not ask for a link how you did, I look at your xorg and notice that
is missing from that config
so some reading for you
Now its likely you did some of that but I would urge you to read from
Tue Jun 25, 2013 7:21 pm
it is suggested you purge and start again
3) I am not sure what nvidia driver you are on, or how you got it.
ideally you adopt the same method reported in above link.
Then if you still have problems, boot a live cd and post that forum post
--as I am not an expert
cool (handballs that one)
4) google also gives me
5) alsa mixer is an executable. Do you mean update the alsa package or the actual alsamixer?
--the package is the base
-----newbies are normally safer to use the packages already created
-----but from time to time, grabbing packages and compiling them from alsa-project may be needed
-----but thats not something I am recommending here
----as it becomes too hard for others to trouble shoot when you post on the bumblebee link if you have not resolved your xorg config. and graphics etc
--the mixer comes from alsa-utils
Linux mint may use different package names so use your package manager to search for alsa...it should show packages
otherwise try this (and my results follow as a guide) as a local user
dpkg -l | grep alsa
ii alsa-base 1.0.25+3 all ALSA driver configuration files
ii alsa-utils 18.104.22.168-1 i386 Utilities for configuring and using ALSA
ii gstreamer0.10-alsa:i386 0.10.36-1.1 i386 GStreamer plugin for ALSA