I’m using Ubuntu 16.04 LTS in Lenovo T410.
But I have a problem about sound card, after it take 5 min working, sounds has gone suddenly. I try to use alsa force-reload command and start working again but then, lost sound.
sudo apt-get remove --purge alsa-base pulseaudio sudo apt-get install alsa-base pulseaudio sudo alsa force-reload
With these commands you can push your driver. In any other cases, you should rebuild your ubuntu.