Comment 0 for bug 257931

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Tim Gardner (timg-tpi) wrote :

On some AMD 700 series southbridges, ISO OUT transfers (such as audio playback through speakers) on the USB OHCI controller may be corrupted when an A-Link express power saving feature is active.

PLL power down mode in conjunction with link power management feature L1 being enabled is the bad combination ... this patch prevents them from being enabled when ISO transfers are pending.