关于声卡问题的简易解决方案

canshe

本人安装FC5，FC6时声卡总是有问题。所以写下点东西，希望对有同样问题的兄弟有帮助。
我的声卡是Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller，用的是alsa的驱动snd_intel8x0
系统能正确认出，声卡检测不能发声。

后来猜测可能是内核加载时的问题，所以就想写个服务，开机时自动卸载、加载模块，命名为alsa

#!/bin/bash
#
# alsa: Alsaconfigure
#
# chkconfig: 2345 88 10
# description: Alsaconfigure,so Alsa module can be used while starting the computer!
#
#


start()
{
echo "ALSA is starting."
rmmod snd_intel8x0
modprobe snd_intel8x0
}

stop()
{
echo "ALSA is stoping."
rmmod snd_intel8x0
}


# See how we were called.
case "$1" in
start)
start
;;
stop)
stop
;;
restart|reload)
stop
start
;;
*)
echo $"Usage: $0 {start|stop|restart|reload}"
exit 1
esac

exit 0

没有经过严格测试，基本有用。赋予可执行属性，放入/etc/init.d
然后，打开 系统--管理--服务器设置--服务 里，“行动”里添加alsa，下次开机就能运行了

VirusCamp

lz 的脚本还不错,就是少了一些功能, 比如模块配置放在 /etc/modprobe.conf 里, 启动时恢复音量, 退出时保存音量.
看看 alsa 自带的脚本吧(我相信 fc6 也会有类似的功能完全的脚本的)

1. #!/bin/bash
   
2. #
   
3. # alsasound     This shell script takes care of starting and stopping
   
4. #               the ALSA sound driver.
   
5. #
   
6. # This script requires /usr/sbin/alsactl and /usr/bin/aconnect
   
7. # programs from the alsa-utils package.
   
8. #
   
9. # Copyright (c) by Jaroslav Kysela <perex@suse.cz>
   
10. #
    
11. #
    
12. #  This program is free software; you can redistribute it and/or modify
    
13. #  it under the terms of the GNU General Public License as published by
    
14. #  the Free Software Foundation; either version 2 of the License, or
    
15. #  (at your option) any later version.
    
16. #
    
17. #  This program is distributed in the hope that it will be useful,
    
18. #  but WITHOUT ANY WARRANTY; without even the implied warranty of
    
19. #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    
20. #  GNU General Public License for more details.
    
21. #
    
22. #  You should have received a copy of the GNU General Public License
    
23. #  along with this program; if not, write to the Free Software
    
24. #  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
    
25. #
    
26. #
    
27. # For RedHat 5.0+:
    
28. # chkconfig: 2345 87 14
    
29. # description: ALSA driver
    
30. #
    
31. # modified to visually fit into SuSE 6.0+ by Philipp Thomas <pthomas@suse.de>
    
32. # further improvements by Bernd Kaindl, Olaf Hering and Takashi Iwai.
    
33. #
    
34. ### BEGIN INIT INFO
    
35. # Provides:       alsasound
    
36. # Required-Start: $remote_fs
    
37. # Required-Stop: $remote_fs
    
38. # Default-Start:  2 3 5
    
39. # Default-Stop:
    
40. # Description:    Loading ALSA drivers and store/restore the current setting
    
41. ### END INIT INFO
    
42. 
    
43. if [ -r /etc/rc.config ]; then
    
44.   . /etc/rc.config
    
45.   rc_warning="\033[33m\033[1m"
    
46. else
    
47.   rc_done="done"
    
48.   rc_warning=""
    
49.   rc_reset=""
    
50. fi
    
51. 
    
52. if [ x$START_ALSA != xno ]; then
    
53.   START_ALSA=yes
    
54. fi
    
55. if [ x$START_ALSA_SEQ != xno ]; then
    
56.   START_ALSA_SEQ=yes
    
57. fi
    
58. 
    
59. # Determine the base and follow a runlevel link name.
    
60. base=${0##*/}
    
61. link=${base#*[SK][0-9][0-9]}
    
62. 
    
63. # Force execution if not called by a runlevel directory.
    
64. test $link = $base && START_ALSA=yes
    
65. test "$START_ALSA" = yes || exit 0
    
66. 
    
67. alsactl=/usr/sbin/alsactl
    
68. asoundcfg=/etc/asound.state
    
69. aconnect=/usr/bin/aconnect
    
70. alsascrdir=/etc/alsa.d
    
71. if [ -x /sbin/lsmod ]; then
    
72.   lsmod=/sbin/lsmod
    
73. else
    
74.   lsmod=lsmod
    
75. fi
    
76. 
    
77. # modprobe returns 255 when failed..
    
78. function probe_module () {
    
79.    /sbin/modprobe $*
    
80.    test $? = 0 && return 0
    
81.    return 1
    
82. }
    
83. 
    
84. function start() {
    
85.   #
    
86.   # insert all sound modules
    
87.   #
    
88. 
    
89.   module_loaded=0
    
90.   drivers=`/sbin/modprobe -c | \
    
91.     grep -E "^[[:space:]]*alias[[:space:]]+snd-card-[[:digit:]]" | \
    
92.     awk '{print $3}'`
    
93.   for i in $drivers; do
    
94.     if [ "$i" != off ]; then
    
95.       echo -n "Starting sound driver: $i "
    
96.       probe_module $i && module_loaded=1
    
97.       echo -e "$rc_done"
    
98.     fi
    
99.   done
    
100.   test $module_loaded -eq 0 && return
     
101.   #
     
102.   # insert sequencer modules
     
103.   #
     
104.   if [ x"$START_ALSA_SEQ" = xyes -a -r /proc/asound/seq/drivers ]; then
     
105.     cut -d , -f 1 /proc/asound/seq/drivers | \
     
106.     while read t ; do
     
107.       test -z $t || /sbin/modprobe $t
     
108.     done
     
109.   fi
     
110.   #
     
111.   # restore driver settings
     
112.   #
     
113.   if [ -d /proc/asound ]; then
     
114.     if [ ! -r $asoundcfg ]; then
     
115.       echo "No mixer config in $asoundcfg, you have to unmute your card!"
     
116.     else
     
117.       if [ -x $alsactl ]; then
     
118.         $alsactl -F -f $asoundcfg restore
     
119.       else
     
120.         echo -e "${rc_warning}ERROR: alsactl not found${rc_reset}"
     
121.       fi
     
122.     fi
     
123.   fi
     
124.   #
     
125.   # run card-dependent scripts
     
126.   for i in $drivers; do
     
127.     t=${i##snd-}
     
128.     if [ -x $alsascrdir/$t ]; then
     
129.       $alsascrdir/$t
     
130.     fi
     
131.   done
     
132. 
     
133.   #
     
134.   # touch lockfile if lockdir exists
     
135.   #
     
136.   if [ -d /var/lock/subsys ] ; then
     
137.     touch /var/lock/subsys/alsasound
     
138.   fi
     
139. }
     
140. 
     
141. function terminate() {
     
142.   #
     
143.   # Kill processes holding open sound devices
     
144.   #
     
145.   # DEVS=`find /dev/ -follow -type c -maxdepth 1 -print 2>/dev/null | xargs ls -dils | grep "1*1[46]," | cut -d: -f2 | cut -d" " -f2; echo /proc/asound/dev/*`
     
146.   fuser -k /dev/admmidi? /dev/adsp? /dev/amidi? /dev/audio* /dev/dmfm* \
     
147.      /dev/dmmidi? /dev/dsp* /dev/dspW* /dev/midi0? /dev/mixer? /dev/music \
     
148.      /dev/patmgr? /dev/sequencer* /dev/sndstat >/dev/null 2>&1
     
149.   if [ -d /proc/asound/dev ]; then
     
150.     fuser -k /proc/asound/dev/* >/dev/null 2>&1
     
151.   fi
     
152.   if [ -d /dev/snd ]; then
     
153.     fuser -k /dev/snd/* >/dev/null 2>&1
     
154.   fi
     
155.   #
     
156.   # remove all sequencer connections if any
     
157.   #
     
158.   if [ -f /proc/asound/seq/clients -a -x $aconnect ]; then
     
159.     $aconnect --removeall
     
160.   fi
     
161. }
     
162. 
     
163. function stop() {
     
164.   #
     
165.   # store driver settings
     
166.   #
     
167.   if [ -x $alsactl ]; then
     
168.     $alsactl -f $asoundcfg store
     
169.   else
     
170.     echo -n -e "${rc_warning}!!!alsactl not found!!!${rc_reset} "
     
171.   fi
     
172.   #
     
173.   # mute master to avoid clicks at unload
     
174.   #
     
175.   /usr/bin/amixer set Master mute >/dev/null 2>&1
     
176.   #
     
177.   # remove all sound modules
     
178.   #
     
179.   $lsmod | grep -E "^snd" | grep -Ev "(snd-page-alloc|snd_page_alloc)" | while read line; do \
     
180.      /sbin/rmmod `echo $line | cut -d ' ' -f 1`; \
     
181.   done
     
182.   # remove the 2.2 soundcore module (if possible)
     
183.   /sbin/rmmod soundcore 2> /dev/null
     
184.   /sbin/rmmod gameport 2> /dev/null
     
185. 
     
186.   #
     
187.   # remove lockfile if lockdir exists
     
188.   #
     
189.   if [ -d /var/lock/subsys ] ; then
     
190.     rm -f /var/lock/subsys/alsasound
     
191.   fi
     
192. }
     
193. 
     
194. # See how we were called.
     
195. case "$1" in
     
196.   start)
     
197.         # Start driver if it isn't already up.
     
198.         if [ ! -d /proc/asound ]; then
     
199.           start
     
200.         else
     
201.           echo "ALSA driver is already running."
     
202.         fi
     
203.         ;;
     
204.   stop)
     
205.         # Stop daemons.
     
206.         if [ -d /proc/asound ]; then
     
207.           echo -n "Shutting down sound driver: "
     
208.           terminate
     
209.           stop
     
210.           echo -e "$rc_done"
     
211.         fi
     
212.         ;;
     
213.   restart|reload)
     
214.         $0 stop
     
215.         $0 start
     
216.         ;;
     
217.   status)
     
218.         if [ -d /proc/asound ]; then
     
219.           echo -n "ALSA sound driver loaded."
     
220.         else
     
221.           echo -n "ALSA sound driver not loaded."
     
222.         fi
     
223.         echo
     
224.         ;;
     
225.   *)
     
226.         echo "Usage: alsasound {start|stop|restart|status}"
     
227.         exit 1
     
228. esac
     
229. 
     
230. exit 0
     

复制代码

canshe

我不大懂这些，只要求简单能用就行，见笑了。

panwei

不行啊，我的FC8还是没有声音啊
添加服务alsa后在服务列表里没有这一项服务，不知怎么回事？
谢谢！！！

victorz

Post by panwei;1815003
不行啊，我的FC8还是没有声音啊
添加服务alsa后在服务列表里没有这一项服务，不知怎么回事？
谢谢！！！

You can try to add "options snd-hda-intel model=laptop-eapd" to the buttom of
/etc/modprobe.d/alsa-base,but you must install alsa first.

这个是针对fc6 的,我用的fc8,开始跟你一样的情况.然后我加了这一句话,笔记本扬声器和耳机就都能正常了.

但是,有以下两个问题需要注意:

1, FC8中的modprobe位置跟上面的不一样,但是大概都在那里,找不到可以搜索一下就出来了.

2,我是笔记本用户,添加了后的确有声音了,但是,你插上耳机后电脑自带的喇叭还是有声音.