Alienware M14x - Linux Mint 14（Nadia）では音が聞こえません。

Alienware M14xにLinux Mint 14.1 x64を新しくインストールしました。インストール後、すべてがうまく動作します。残念ながら、しばらくすると音が消えます。 VLC、YouTubeなどで動画を再生しても音は出ません。サウンドを再取得するには、コンピュータを再起動する必要があるたびに。

以下はいくつかの情報です。

注文する:lspci -v | grep -A7 -i "audio"

00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
    Subsystem: Dell Device 0491
    Flags: bus master, fast devsel, latency 0, IRQ 54
    Memory at da800000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: snd_hda_intel
    Kernel modules: snd-hda-intel

注文する:cat /proc/asound/card0/codec* | grep Codec

Codec: Realtek ALC665
Codec: Intel CougarPoint HDMI

注文する:inxi -F

System:    Host: xxxxxxxxxx Kernel: 3.5.0-17-generic x86_64 (64 bit)     Desktop: Gnome Distro: Linux Mint 14 Nadia
Machine:   Mobo: Alienware model: M14xR1 version: A08 Bios: Alienware version: A08  date: 12/24/2011
CPU:       Quad core Intel Core i7-2670QM CPU (-HT-MCP-) cache: 6144 KB flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) 
       Clock Speeds: 1: 800.00 MHz 2: 800.00 MHz 3: 800.00 MHz 4: 800.00 MHz 5: 800.00 MHz 6: 800.00 MHz 7: 800.00 MHz 8: 800.00 MHz
Graphics:  Card-1: Intel 2nd Generation Core Processor Family Integrated Graphics Controller 
       Card-2: NVIDIA Device 124d 
       X.Org: 1.13.0 drivers: intel (unloaded: fbdev,vesa) Resolution: [email protected] 
       GLX Renderer: Mesa DRI Intel Sandybridge Mobile GLX Version: 3.0 Mesa 9.0
Audio:     Card: Intel 6 Series/C200 Series Chipset Family High Definition Audio Controller driver: snd_hda_intel
       Sound: Advanced Linux Sound Architecture ver: 1.0.25
Network:   Card-1: Atheros AR8151 v2.0 Gigabit Ethernet driver: atl1c 
       IF: eth0 state: down mac: d4:be:d9:1b:76:5c
       Card-2: Intel Centrino Wireless-N 1000 driver: iwlwifi 
       IF: wlan0 state: up mac: 74:e5:0b:b0:04:36
Drives:    HDD Total Size: 750.2GB (6.4% used) 1: id: /dev/sda model: ST9750420AS size: 750.2GB 
Partition: ID: / size: 434G used: 26G (7%) fs: ext4 ID: swap-1 size: 8.19GB used: 0.00GB (0%) fs: swap 
RAID:      No RAID devices detected - /proc/mdstat and md_mod kernel raid module present
Sensors:   System Temperatures: cpu: 51.0C mobo: N/A 
       Fan Speeds (in rpm): cpu: N/A 
Info:      Processes: 190 Uptime: 4:06 Memory: 862.4/7934.4MB Client: Shell    inxi: 1.8.4