如果你使用的是HP dv4、dv5或者dv7系列的笔记本，你的声音可能会有问题。比如：HP Pavilion dv4 1225、HP Pavilion dv5 1044ca等。
- this fix work greet with Jaunty Jackalope (Ubuntu 9.04) 30 apr 2009
这个补丁可以很好的工作在Jaunty Jackalope (Ubuntu 9.04)上。
- the alsa developers have a solution for this issue:
alsa开发者公布了这个解决办法：
The cause, according to some alsa developers, is an incorrect 'pin' assignment (in the BIOS, perhaps) whereby
sound output meant for the internal speakers gets routed to the wrong place.
The latest alsa-driver snapshot provides a fix for this issue. You can get it here:
按照一下方式下载并安装最新版本的补丁：
cd ~
mkdir src
cd src
mkdir alsa
cd alsa
wget
tar -xvfp alsa-driver-snapshot.tar.gz
cd alsa-driver
sudo ./configure
sudo make
sudo make install-modulesOptional:
如果还不能正常工作的话请按下面的步骤操作：
sudo vim /etc/modprobe.d/alsa-base.conf[add 'options snd_hda_intel
model=hp-dv5' sans quotes to the bottom of the file, even if you have a
dv4, etc.]
在文件中添加一行：
options snd_hda_intel model=hp-dv5
sudo reboot
修正个问题：
alias snd-card-0 snd-hda-intel
alias sound-slot-0 snd-hda-intel
options snd-hda-intel model=hp-dv5
options snd-hda-intel enable_msi=1
加入这几个句子
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