F12 Sound problem (LFE is always maxed)

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http://forums.fedoraforum.org – I installed F12 64 bit on my Dell Precision M90 today, which has an intel hda sound card. The sound seems to be very loud and is coming from the LFE (subwoofer). I couldn't see the LFE control in the volume control so I downloaded gmixer and turned the LFE down. But whenever I change the volume, the LFE slides back up to max again and it gets very loud again. Tried alsamixer too (dropped LFE down) but the same thing happens.... Anyone notice this and anyone got a solution? (HowTos)