No sound ubuntu mate 16.04 64 bit version

just updated to the 64 bit version and i have no sound. I previously had 32 bit installed and it had sound.
Any ideas as to this problem and how to fix?

Please provide the output of:

lshw -C sound

description: Video
product: HD Pro Webcam C920
vendor: Logitech, Inc.
physical id: 1
bus info: usb@3:1
version: 0.11
serial: 1E2C3A3F
capabilities: usb-2.00
configuration: driver=snd-usb-audio maxpower=500mA speed=480Mbit/s
description: Audio device
product: 8 Series/C220 Series Chipset High Definition Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
version: 05
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:34 memory:f7e10000-f7e13fff