sound stopped working on Ubuntu (Netbook)

I'm using a chromebook, and I can't play sound because the drivers aren't supported on chromebook (I'm using 16.04). Any way around this?

Terminal output:

$ lspci -nnk | grep -A2 Audio
00:1b.0 Audio device [0403]: Intel Corporation Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller [8086:0f04] (rev 0e)
  Subsystem: Intel Corporation Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller [8086:0f04]
  Kernel driver in use: snd_hda_intel
  Kernel modules: snd_hda_intel

$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0

$ pactl list short sinks
0   alsa_output.pci-0000_00_1b.0.hdmi-stereo    module-alsa-card.c s16le 2ch 44100Hz    SUSPENDED

Solution 1:

You could re-install related packages like amarok and of rhythmbox, with:

sudo apt-get install --reinstall rhythmbox amarok
sudo reboot