Description of problem:
The input of my sound card does not work. I installed alsa-tools, alsa-firmware, etc... I temporarily disabled Pulse Audio (until I find a solution working both with Alsa and Pulse Audio). I opened Alsa Mixer GUI but there is no "line" option, I see PCM, Master, Digital (which seems to be used for the microphone) but no "line". Changing "Capture" does not solve my problem. I succeeded in adding the "line" control into kmix but I still hear nothing from the input. I tried that in command line:

    [gouessej@localhost ~]$ grep sound /etc/modprobe.conf
    alias sound-slot-0 snd_hda_intel
    [gouessej@localhost ~]$ amixer -c0
    Simple mixer control 'Master',0
      Capabilities: pvolume pswitch
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 31
      Mono:
      Front Left: Playback 31 [100%] [0.00dB] [on]
      Front Right: Playback 31 [100%] [0.00dB] [on]
    Simple mixer control 'PCM',0
      Capabilities: pvolume
      Playback channels: Front Left - Front Right
      Limits: Playback 0 - 255
      Mono:
      Front Left: Playback 255 [100%] [0.00dB]
      Front Right: Playback 255 [100%] [0.00dB]
    Simple mixer control 'LFE',0
      Capabilities: pvolume pvolume-joined pswitch pswitch-joined
      Playback channels: Mono
      Limits: Playback 0 - 31
      Mono: Playback 31 [100%] [0.00dB] [on]
    Simple mixer control 'Capture',0
      Capabilities: cvolume cswitch
      Capture channels: Front Left - Front Right
      Limits: Capture 0 - 15
      Front Left: Capture 15 [100%] [22.50dB] [on]
      Front Right: Capture 15 [100%] [22.50dB] [on]
    Simple mixer control 'Digital',0
      Capabilities: cvolume
      Capture channels: Front Left - Front Right
      Limits: Capture 0 - 120
      Front Left: Capture 120 [100%] [30.00dB]
      Front Right: Capture 120 [100%] [30.00dB]
    Simple mixer control 'Input Source',0
      Capabilities: cenum
      Items: 'Front Mic' 'Rear Mic' 'Line'
      Item0: 'Line'
    Simple mixer control 'Mux',0
      Capabilities: cvolume
      Capture channels: Front Left - Front Right
      Limits: Capture 0 - 4
      Front Left: Capture 4 [100%] [40.00dB]
      Front Right: Capture 4 [100%] [40.00dB]


    [gouessej@localhost ~]$ pacmd ls
    Welcome to PulseAudio! Use "help" for usage information.
    >>> Memory blocks currently allocated: 1, size: 64,0 Kio.
    Memory blocks allocated during the whole lifetime: 38577, size: 81,7 Mio.
    Memory blocks imported from other processes: 0, size: 0 B.
    Memory blocks exported to other processes: 0, size: 0 B.
    Total sample cache size: 0 B.
    Default sample spec: s16le 2ch 44100Hz
    Default channel map: front-left,front-right
    Default sink name: alsa_output.pci-0000_00_1b.0.analog-stereo
    Default source name: alsa_input.pci-0000_00_1b.0.analog-stereo
    Memory blocks of type POOL: 1 allocated/11828 accumulated.
    Memory blocks of type POOL_EXTERNAL: 0 allocated/12202 accumulated.
    Memory blocks of type APPENDED: 0 allocated/0 accumulated.
    Memory blocks of type USER: 0 allocated/0 accumulated.
    Memory blocks of type FIXED: 0 allocated/26359 accumulated.
    Memory blocks of type IMPORTED: 0 allocated/390 accumulated.
    25 module(s) loaded.
        index: 0
            name: <module-device-restore>
            argument: <>
            used: -1
            load once: yes
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "Automatically restore the volume/mute state of devices"
                    module.version = "2.0.0-1.mga2"
        index: 1
            name: <module-stream-restore>
            argument: <>
            used: -1
            load once: yes
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "Automatically restore the volume/mute/device state of streams"
                    module.version = "2.0.0-1.mga2"
        index: 2
            name: <module-card-restore>
            argument: <>
            used: -1
            load once: yes
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "Automatically restore profile of cards"
                    module.version = "2.0.0-1.mga2"
        index: 3
            name: <module-augment-properties>
            argument: <>
            used: -1
            load once: yes
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "Augment the property sets of streams with additional static information"
                    module.version = "2.0.0-1.mga2"
        index: 4
            name: <module-alsa-card>
            argument: <device_id="0" name="pci-0000_00_1b.0" card_name="alsa_card.pci-0000_00_1b.0" namereg_fail=false tsched=no fixed_latency_range=no ignore_dB=no deferred_volume=yes card_properties="module-udev-detect.discovered=1">
            used: 0
            load once: no
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "ALSA Card"
                    module.version = "2.0.0-1.mga2"
        index: 5
            name: <module-udev-detect>
            argument: <tsched=0>
            used: -1
            load once: yes
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "Detect available audio hardware and load matching drivers"
                    module.version = "2.0.0-1.mga2"
        index: 6
            name: <module-esound-protocol-unix>
            argument: <>
            used: -1
            load once: no
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "ESOUND protocol (UNIX sockets)"
                    module.version = "2.0.0-1.mga2"
        index: 7
            name: <module-native-protocol-unix>
            argument: <>
            used: -1
            load once: no
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "Native protocol (UNIX sockets)"
                    module.version = "2.0.0-1.mga2"
        index: 8
            name: <module-gconf>
            argument: <>
            used: -1
            load once: yes
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "GConf Adapter"
                    module.version = "2.0.0-1.mga2"
        index: 9
            name: <module-default-device-restore>
            argument: <>
            used: -1
            load once: yes
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "Automatically restore the default sink and source"
                    module.version = "2.0.0-1.mga2"
        index: 10
            name: <module-rescue-streams>
            argument: <>
            used: -1
            load once: yes
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "When a sink/source is removed, try to move their streams to the default sink/source"
                    module.version = "2.0.0-1.mga2"
        index: 11
            name: <module-always-sink>
            argument: <>
            used: -1
            load once: yes
            properties:
                    module.author = "Colin Guthrie"
                    module.description = "Garde toujours au moins une destination même si elle est vide"
                    module.version = "2.0.0-1.mga2"
        index: 12
            name: <module-intended-roles>
            argument: <>
            used: -1
            load once: yes
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "Automatically set device of streams based of intended roles of devices"
                    module.version = "2.0.0-1.mga2"
        index: 13
            name: <module-suspend-on-idle>
            argument: <>
            used: -1
            load once: yes
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "When a sink/source is idle for too long, suspend it"
                    module.version = "2.0.0-1.mga2"
        index: 14
            name: <module-console-kit>
            argument: <>
            used: -1
            load once: yes
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "Create a client for each ConsoleKit session of this user"
                    module.version = "2.0.0-1.mga2"
        index: 15
            name: <module-position-event-sounds>
            argument: <>
            used: -1
            load once: yes
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "Position event sounds between L and R depending on the position on screen of the widget triggering them."
                    module.version = "2.0.0-1.mga2"
        index: 16
            name: <module-role-cork>
            argument: <>
            used: -1
            load once: yes
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "Mute & cork streams with certain roles while others exist"
                    module.version = "2.0.0-1.mga2"
        index: 17
            name: <module-filter-heuristics>
            argument: <>
            used: -1
            load once: yes
            properties:
                    module.author = "Colin Guthrie"
                    module.description = "Detect when various filters are desirable"
                    module.version = "2.0.0-1.mga2"
        index: 18
            name: <module-filter-apply>
            argument: <>
            used: -1
            load once: yes
            properties:
                    module.author = "Colin Guthrie"
                    module.description = "Load filter sinks automatically when needed"
                    module.version = "2.0.0-1.mga2"
        index: 19
            name: <module-dbus-protocol>
            argument: <>
            used: -1
            load once: yes
            properties:
                    module.author = "Tanu Kaskinen"
                    module.description = "D-Bus interface"
                    module.version = "2.0.0-1.mga2"
        index: 20
            name: <module-switch-on-port-available>
            argument: <>
            used: -1
            load once: no
            properties:

        index: 21
            name: <module-x11-publish>
            argument: <display=:0>
            used: -1
            load once: no
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "X11 credential publisher"
                    module.version = "2.0.0-1.mga2"
        index: 22
            name: <module-x11-xsmp>
            argument: <display=:0 session_manager=local/localhost:@/tmp/.ICE-unix/24961,unix/localhost:/tmp/.ICE-unix/24961>
            used: -1
            load once: no
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "X11 session management"
                    module.version = "2.0.0-1.mga2"
        index: 23
            name: <module-device-manager>
            argument: <do_routing=1>
            used: -1
            load once: yes
            properties:
                    module.author = "Colin Guthrie"
                    module.description = "Keep track of devices (and their descriptions) both past and present and prioritise by role"
                    module.version = "2.0.0-1.mga2"
        index: 25
            name: <module-cli-protocol-unix>
            argument: <>
            used: -1
            load once: no
            properties:
                    module.author = "Lennart Poettering"
                    module.description = "Command line interface protocol (UNIX sockets)"
                    module.version = "2.0.0-1.mga2"
    1 sink(s) available.
        index: 2
            name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
            driver: <module-alsa-card.c>
            flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME
            state: SUSPENDED
            suspend cause: IDLE
            priority: 9959
            volume: 0: 100% 1: 100%
                    0: 0,00 dB 1: 0,00 dB
                    balance 0,00
            base volume: 100%
                         0,00 dB
            volume steps: 65537
            muted: no
            current latency: 0,00 ms
            max request: 0 KiB
            max rewind: 0 KiB
            monitor source: 3
            sample spec: s16le 2ch 44100Hz
            channel map: front-left,front-right
                         Stéréo
            used by: 0
            linked by: 0
            fixed latency: 99,95 ms
            card: 0 <alsa_card.pci-0000_00_1b.0>
            module: 4
            properties:
                    alsa.resolution_bits = "16"
                    device.api = "alsa"
                    device.class = "sound"
                    alsa.class = "generic"
                    alsa.subclass = "generic-mix"
                    alsa.name = "STAC92xx Analog"
                    alsa.id = "STAC92xx Analog"
                    alsa.subdevice = "0"
                    alsa.subdevice_name = "subdevice #0"
                    alsa.device = "0"
                    alsa.card = "0"
                    alsa.card_name = "HDA Intel"
                    alsa.long_card_name = "HDA Intel at 0xefffc000 irq 45"
                    alsa.driver_name = "snd_hda_intel"
                    device.bus_path = "pci-0000:00:1b.0"
                    sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
                    device.bus = "pci"
                    device.vendor.id = "8086"
                    device.vendor.name = "Intel Corporation"
                    device.product.name = "N10/ICH 7 Family High Definition Audio Controller"
                    device.form_factor = "internal"
                    device.string = "front:0"
                    device.buffering.buffer_size = "17632"
                    device.buffering.fragment_size = "4408"
                    device.access_mode = "mmap"
                    device.profile.name = "analog-stereo"
                    device.profile.description = "Stéréo analogique"
                    device.description = "Audio interne Stéréo analogique"
                    alsa.mixer_name = "SigmaTel STAC9200"
                    alsa.components = "HDA:83847690,102801a8,00102201"
                    module-udev-detect.discovered = "1"
                    device.icon_name = "audio-card-pci"
            ports:
                    analog-output: Sortie analogique (priority 9900, available: unknown)
                            properties:

            active port: <analog-output>
    2 source(s) available.
        index: 3
            name: <alsa_output.pci-0000_00_1b.0.analog-stereo.monitor>
            driver: <module-alsa-card.c>
            flags: DECIBEL_VOLUME LATENCY
            state: SUSPENDED
            suspend cause: IDLE
            priority: 1950
            volume: 0: 100% 1: 100%
                    0: 0,00 dB 1: 0,00 dB
                    balance 0,00
            base volume: 100%
                         0,00 dB
            volume steps: 65537
            muted: no
            current latency: 0,00 ms
            max rewind: 0 KiB
            sample spec: s16le 2ch 44100Hz
            channel map: front-left,front-right
                         Stéréo
            used by: 0
            linked by: 0
            fixed latency: 99,95 ms
            monitor_of: 2
            card: 0 <alsa_card.pci-0000_00_1b.0>
            module: 4
            properties:
                    device.description = "Monitor of Audio interne Stéréo analogique"
                    device.class = "monitor"
                    alsa.card = "0"
                    alsa.card_name = "HDA Intel"
                    alsa.long_card_name = "HDA Intel at 0xefffc000 irq 45"
                    alsa.driver_name = "snd_hda_intel"
                    device.bus_path = "pci-0000:00:1b.0"
                    sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
                    device.bus = "pci"
                    device.vendor.id = "8086"
                    device.vendor.name = "Intel Corporation"
                    device.product.name = "N10/ICH 7 Family High Definition Audio Controller"
                    device.form_factor = "internal"
                    device.string = "0"
                    module-udev-detect.discovered = "1"
                    device.icon_name = "audio-card-pci"
        index: 4
            name: <alsa_input.pci-0000_00_1b.0.analog-stereo>
            driver: <module-alsa-card.c>
            flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY
            state: SUSPENDED
            suspend cause: IDLE
            priority: 9959
            volume: 0: 100% 1: 100%
                    0: 0,00 dB 1: 0,00 dB
                    balance 0,00
            base volume:  42%
                         -22,50 dB
            volume steps: 65537
            muted: no
            current latency: 0,00 ms
            max rewind: 0 KiB
            sample spec: s16le 2ch 44100Hz
            channel map: front-left,front-right
                         Stéréo
            used by: 0
            linked by: 0
            fixed latency: 99,95 ms
            card: 0 <alsa_card.pci-0000_00_1b.0>
            module: 4
            properties:
                    alsa.resolution_bits = "16"
                    device.api = "alsa"
                    device.class = "sound"
                    alsa.class = "generic"
                    alsa.subclass = "generic-mix"
                    alsa.name = "STAC92xx Analog"
                    alsa.id = "STAC92xx Analog"
                    alsa.subdevice = "0"
                    alsa.subdevice_name = "subdevice #0"
                    alsa.device = "0"
                    alsa.card = "0"
                    alsa.card_name = "HDA Intel"
                    alsa.long_card_name = "HDA Intel at 0xefffc000 irq 45"
                    alsa.driver_name = "snd_hda_intel"
                    device.bus_path = "pci-0000:00:1b.0"
                    sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
                    device.bus = "pci"
                    device.vendor.id = "8086"
                    device.vendor.name = "Intel Corporation"
                    device.product.name = "N10/ICH 7 Family High Definition Audio Controller"
                    device.form_factor = "internal"
                    device.string = "front:0"
                    device.buffering.buffer_size = "17632"
                    device.buffering.fragment_size = "4408"
                    device.access_mode = "mmap"
                    device.profile.name = "analog-stereo"
                    device.profile.description = "Stéréo analogique"
                    device.description = "Audio interne Stéréo analogique"
                    alsa.mixer_name = "SigmaTel STAC9200"
                    alsa.components = "HDA:83847690,102801a8,00102201"
                    module-udev-detect.discovered = "1"
                    device.icon_name = "audio-card-pci"
            ports:
                    analog-input-microphone-front: Front Microphone (priority 8500, available: no)
                            properties:

                    analog-input-microphone-rear: Rear Microphone (priority 8200, available: no)
                            properties:

                    analog-input-linein: Entrée-ligne (priority 8100, available: unknown)
                            properties:

            active port: <analog-input-linein>
    6 client(s) logged in.
        index: 0
            driver: <module-console-kit.c>
            owner module: 14
            properties:
                    application.name = "ConsoleKit Session /org/freedesktop/ConsoleKit/Session2"
                    console-kit.session = "/org/freedesktop/ConsoleKit/Session2"
        index: 4
            driver: <protocol-native.c>
            owner module: 7
            properties:
                    application.name = "KMix KDE 4"
                    native-protocol.peer = "UNIX socket client"
                    native-protocol.version = "26"
                    application.process.id = "24936"
                    application.process.user = "gouessej"
                    application.process.host = "localhost"
                    application.process.binary = "kdeinit4"
                    application.language = "fr_FR.UTF-8"
                    window.x11.display = ":0"
                    application.process.machine_id = "d2c20895162635de17f324dd00000231"
                    application.process.session_id = "d2c20895162635de17f324dd00000231-1348614636.762767-1496026339"
        index: 7
            driver: <protocol-native.c>
            owner module: 7
            properties:
                    application.name = "libcanberra"
                    native-protocol.peer = "UNIX socket client"
                    native-protocol.version = "26"
                    application.version = "0.28"
                    application.id = "org.freedesktop.libcanberra"
                    application.process.id = "25137"
                    application.process.user = "gouessej"
                    application.process.host = "localhost"
                    application.process.binary = "knotify4"
                    application.language = "fr_FR.UTF-8"
                    window.x11.display = ":0"
                    application.process.machine_id = "d2c20895162635de17f324dd00000231"
                    application.process.session_id = "d2c20895162635de17f324dd00000231-1348614636.762767-1496026339"
        index: 8
            driver: <module-x11-xsmp.c>
            owner module: 22
            properties:
                    application.name = "XSMP Session on KDE as 1014cd7d2d4000134861465500000249610009"
                    xsmp.vendor = "KDE"
                    xsmp.client.id = "1014cd7d2d4000134861465500000249610009"
        index: 11
            driver: <protocol-native.c>
            owner module: 7
            properties:
                    application.name = "KMix KDE 4"
                    native-protocol.peer = "UNIX socket client"
                    native-protocol.version = "26"
                    application.process.id = "25211"
                    application.process.user = "gouessej"
                    application.process.host = "localhost"
                    application.process.binary = "kdeinit4"
                    application.language = "fr_FR.UTF-8"
                    window.x11.display = ":0"
                    application.process.machine_id = "d2c20895162635de17f324dd00000231"
                    application.process.session_id = "d2c20895162635de17f324dd00000231-1348614636.762767-1496026339"
        index: 24
            driver: <cli.c>
            owner module: 25
            properties:
                    application.name = "UNIX socket client"
    1 card(s) available.
        index: 0
            name: <alsa_card.pci-0000_00_1b.0>
            driver: <module-alsa-card.c>
            owner module: 4
            properties:
                    alsa.card = "0"
                    alsa.card_name = "HDA Intel"
                    alsa.long_card_name = "HDA Intel at 0xefffc000 irq 45"
                    alsa.driver_name = "snd_hda_intel"
                    device.bus_path = "pci-0000:00:1b.0"
                    sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
                    device.bus = "pci"
                    device.vendor.id = "8086"
                    device.vendor.name = "Intel Corporation"
                    device.product.name = "N10/ICH 7 Family High Definition Audio Controller"
                    device.form_factor = "internal"
                    device.string = "0"
                    device.description = "Audio interne"
                    module-udev-detect.discovered = "1"
                    device.icon_name = "audio-card-pci"
            profiles:
                    output:analog-stereo: Stéréo analogique Output (priority 6000)
                    output:analog-stereo+input:analog-stereo: Duplex stéréo analogique (priority 6060)
                    input:analog-stereo: Stéréo analogique Input (priority 60)
                    off: Ãteint (priority 0)
            active profile: <output:analog-stereo+input:analog-stereo>
            sinks:
                    alsa_output.pci-0000_00_1b.0.analog-stereo/#2: Audio interne Stéréo analogique
            sources:
                    alsa_output.pci-0000_00_1b.0.analog-stereo.monitor/#3: Monitor of Audio interne Stéréo analogique
                    alsa_input.pci-0000_00_1b.0.analog-stereo/#4: Audio interne Stéréo analogique
            ports:
                    analog-output: Sortie analogique (priority 9900, available: unknown)
                            properties:

                    analog-input-microphone-front: Front Microphone (priority 8500, available: no)
                            properties:

                    analog-input-microphone-rear: Rear Microphone (priority 8200, available: no)
                            properties:

                    analog-input-linein: Entrée-ligne (priority 8100, available: unknown)
                            properties:

    0 sink input(s) available.
    0 source outputs(s) available.
    0 cache entrie(s) available.

Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. Connect any device with a sound output to the input of this sound card
2. Ensure the duplex mode is enabled
3. You don't hear the sound from this device