my laptop was having sound when I installed lubuntu. Now I dont have any sound. How to go about to get sound back.
00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04)
Subsystem: Acer Incorporated [ALI] Device 072d
Flags: bus master, fast devsel, latency 0, IRQ 47
Memory at f0710000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd-hda-intel