Comment 5 for bug 37975

I can confirm that I'm seeing the same behaviour on this kernel. I'm running on a Toshiba Satellite P100-113. lshw give this:
        *-multimedia
             description: Multimedia controller
             product: 82801G (ICH7 Family) High Definition Audio Controller
             vendor: Intel Corporation
             physical id: 1b
             bus info: pci@00:1b.0
             version: 02
             width: 64 bits
             clock: 33MHz
             capabilities: bus_master cap_list
             configuration: driver=HDA Intel
             resources: iomemory:b0000000-b0003fff irq:58