can you post the output of alsa-info.sh ?

if headphone is plugged , the driver auto mute the rear panel audio

do your desktop support multi streaming in windows ?


control.36 {
                iface CARD
                name 'Speaker Front Jack'
                value false
                comment {
                        access read
                        type BOOLEAN
                        count 1
                }
        }
        control.37 {
                iface CARD
                name 'Speaker Surround Jack'
                value false
                comment {
                        access read
                        type BOOLEAN
                        count 1
                }
        }
        control.38 {
                iface CARD
                name 'Speaker CLFE Jack'
                value false
                comment {
                        access read
                        type BOOLEAN
                        count 1
                }
        }
        control.39 {
                iface CARD
                name 'Speaker Side Jack'
                value false
                comment {
                        access read
                        type BOOLEAN
                        count 1
                }
        }
        control.40 {
                iface CARD
                name 'Front Headphone Jack'
                value true
                comment {
                        access read
                        type BOOLEAN
                        count 1
                }
        }

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https://bugs.launchpad.net/bugs/1041322

Title:
  Very low sound on HP p7-1227c

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