Comment 1 for bug 151111

Some more info and a couple of comments:

- This bug is specific to HP/Compaq laptops - if another similar seeming bug is described that affects OTHER brands it is NOT the same bug
- Restarting things like alsa, etc have no impact since the whole sound subsystem is "working", there's just no power to the amplifier

Apparently the patch that broke things is:

--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -2470,7 +2470,10 @@ static int intel8x0_suspend(struct pci_dev *pci, pm_message_t state)
        }
        pci_disable_device(pci);
        pci_save_state(pci);
- pci_set_power_state(pci, pci_choose_state(pci, state));
+ /* The call below may disable built-in speaker on some laptops
+ * after S2RAM. So, don't touch it.
+ */
+ /* pci_set_power_state(pci, pci_choose_state(pci, state)); */
        return 0;
 }

Un-aplying this patch supposedly fixes things....