Comment 22 for bug 995684

Same problem here, didn't test powering with headphones either.

Laptop is Acer Aspire 7720G, used to work in linux mint 13 before last update.

$ uname -a
Linux claw 3.2.0-23-generic #36-Ubuntu SMP Tue Apr 10 20:41:14 UTC 2012 i686 i686 i386 GNU/Linux

lspci -v:
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
 Subsystem: Acer Incorporated [ALI] Device 011e
 Flags: bus master, fast devsel, latency 0, IRQ 46
 Memory at 98400000 (64-bit, non-prefetchable) [size=16K]
 Capabilities: <access denied>
 Kernel driver in use: snd_hda_intel
 Kernel modules: snd-hda-intel