alsa安装后还是无声？
我用的是 Red Hat 9,内核是 2.4.20－8,声卡是 FM801.我已经安装了 alsa-driver-1.0.1 alsa-lib-1.0.1 alsa-oss-1.0.1 alsa-utils-1.0.1
安装过程如下：
安装driver
cd alsa-driver-1.0.1
./configure --with-cards=fm801 --with-oss=yes --with-sequencer=yes --with-debug=none --with-isapnp=no
make
make install
安装Library
cd alsa-lib-1.0.1
./configure
make install
安装OSS Compat.Library
cd alsa-oss-1.0.1
./configure
make install
安装Utilities
cd alsa-utils-1.0.1
./configure
make install
运行alsaconf，按提示配置/etc/modules.conf，基本上就是一路回车
运行结果：
Loading driver...
Starting sound driver: snd-fm801 /lib/modules/2.4.20-8/kernel/sound/acore/snd.o: unresolved symbol schedule_work
/lib/modules/2.4.20-8/kernel/sound/acore/snd.o: insmod /lib/modules/2.4.20-8/kernel/sound/acore/snd.o failed
/lib/modules/2.4.20-8/kernel/sound/acore/snd.o: unresolved symbol schedule_work
/lib/modules/2.4.20-8/kernel/sound/acore/snd.o: insmod /lib/modules/2.4.20-8/kernel/sound/acore/snd.o failed
/lib/modules/2.4.20-8/kernel/sound/acore/snd.o: insmod snd-fm801 failed
done
Setting default volumes...
Saving the mixer setup used for this in /etc/asound.state.
/usr/sbin/alsactl: save_state:1061: No soundcards found...
===============================================================================
Now ALSA is ready to use.
For adjustment of volumes, use your favorite mixer.
Have a lot of fun!
运行alsamixer，调整音量
运行结果：
alsamixer: function snd_ctl_open failed for default: No such device
运行kmix，调整音量
运行ntsysv，启动服务里有alsasound一项
运行 #/etc/init.d/alsasound start
运行结果：
# /etc/init.d/alsasound start
Starting sound driver: snd-fm801 /lib/modules/2.4.20-8/kernel/sound/acore/snd.o: unresolved symbol schedule_work
/lib/modules/2.4.20-8/kernel/sound/acore/snd.o: insmod /lib/modules/2.4.20-8/kernel/sound/acore/snd.o failed
/lib/modules/2.4.20-8/kernel/sound/acore/snd.o: unresolved symbol schedule_work
/lib/modules/2.4.20-8/kernel/sound/acore/snd.o: insmod /lib/modules/2.4.20-8/kernel/sound/acore/snd.o failed
/lib/modules/2.4.20-8/kernel/sound/acore/snd.o: insmod snd-fm801 failed
done
运行 #lsmod
显示的结果中没有alsasound
然后reboot
在 KDE 启动后，弹出标题为：提示－art信息 的窗口，内容为：
Sound server informational message:
Error while initializing the sound driver:
device /dev/dsp can't be opened (No such device)
The sound server will continue, using the null output device.
启动时并没有听到启动的音乐。
不知我那的设置有问题。 怎么没人回答？ 运行alsaconf式式 运行了，还是上面的显示结果。 insmod snd-fm801 failed
No soundcards found...
ALSA驱动安装成功了吗？ 安装完alsa-drivers后，一定要运行一下该目录下的 ./snddevices , 该脚本创建了相应的设备文件。 装载驱动模块前要把原来的模块先去掉。 我在make install后运行./snddevices了，发贴时笔误。
楼上说的 “装载驱动模块前要把原来的模块先去掉。” 是什么意思？我没听说过，能讲得清楚一点吗？
还有，我把系统重装了一遍，然后安了公社的xmms-1.2.8和mp3插件，发现可以播放mp3，只是放两三分钟就会出现杂音，但kde启动时却没有启动音，我已经在kde控制中心里设置了启动时播放启动音，难道是系统不能使用声卡，软件却可以？ 楼上说的装载驱动模块前要把原来的模块先去掉，应该怎么做呀？ 用不着楼主那么复杂吧，只需安装alsa-driver就可以了，在编译的时候不妨直接make install，不要make那一步。还有要配置/etc/modules.conf文件。这个可以通过alsaconf命令获得。再就是把KDE的artsd音频服务进程杀掉。一般的用esd代替artsd比较好。 谢谢，我试试先。 你的内核重新配置了么？
需要内核取消声音的所有设置（除了声音支持） 我没有重新编译内核。
我仔细想了想，这几项可能有问题：
1. 系统启动时显示启动了alsasound，但是当我用 lsmod 查看装载的模块时，并没有alsasound，
显示如下：
# lsmod
Module SizeUsed by Not tainted
ppp_synctty 7904 0(unused)
ppp_async 9440 1
ppp_generic 24444 3
slhc 6740 0
soundcore 6404 0(autoclean)
lp 8996 0(autoclean)
parport 37056 0(autoclean)
autofs 13268 0(autoclean) (unused)
via-rhine 15856 1
mii 3976 0
ipt_REJECT 3928 6(autoclean)
iptable_filter 2412 1(autoclean)
ip_tables 15096 2
nls_gb2312 964 5(autoclean)
nls_cp936 124956 6(autoclean)
vfat 13004 5(autoclean)
fat 38808 0(autoclean)
keybdev 2944 0(unused)
mousedev 5492 1
hid 22148 0(unused)
input 5856 0
usb-uhci 26348 0(unused)
usbcore 78784 1
ext3 70784 1
jbd 51892 1
#
也就是说，没有加载任何声卡驱动。我尝试手动加载，如下：
# ./alsasound start
Starting sound driver: snd-fm801 /lib/modules/2.4.20-8/kernel/sound/acore/snd.o: unresolved symbol schedule_work
/lib/modules/2.4.20-8/kernel/sound/acore/snd.o: insmod /lib/modules/2.4.20-8/kernel/sound/acore/snd.o failed
/lib/modules/2.4.20-8/kernel/sound/acore/snd.o: insmod snd-fm801 failed
done
# modprobe snd-fm801
/lib/modules/2.4.20-8/kernel/sound/acore/snd.o: unresolved symbol schedule_work
/lib/modules/2.4.20-8/kernel/sound/acore/snd.o: insmod /lib/modules/2.4.20-8/kernel/sound/acore/snd.o failed
/lib/modules/2.4.20-8/kernel/sound/acore/snd.o: insmod snd-fm801 failed
# insmod snd-fm801
Using /lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_pcm_new_R044bfa19
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_card_register_R641b5c23
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_pcm_set_ops_Re2066856
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_pcm_lib_free_pages_R44cfd9e6
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_mpu401_uart_new_Rbee95de0
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_verbose_printk_R49d4e4d1
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_mpu401_uart_interrupt_Rff6d4aa3
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_pcm_hw_constraint_list_R1d63291b
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_pcm_format_width_R55eb2175
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_opl3_create_R961e95a8
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_kcalloc_R4da9e78a
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_pcm_lib_malloc_pages_Ree8cb6e8
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_pcm_lib_ioctl_Rba25d96b
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_pcm_period_elapsed_Rffae58fd
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_pcm_lib_preallocate_pci_pages_for_all_R454529c1
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_card_new_R0daf89b8
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_ac97_mixer
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_ctl_add_R7f7d8998
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_pcm_hw_constraint_integer_Rc9d5a387
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_card_free_Rec27aad4
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_ctl_new1_Rb5b5594b
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_opl3_hwdep_new_Rfb2e3b50
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_pcm_lib_preallocate_free_for_all_Ra7025626
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_device_new_R1aedf641
/lib/modules/2.4.20-8/kernel/sound/pci/snd-fm801.o: unresolved symbol snd_ac97_bus
#
由此，我认为也许是模块加载的问题。
2. 在 KDE 启动后，弹出标题为：提示－art信息 的窗口，内容为：
Sound server informational message:
Error while initializing the sound driver:
device /dev/dsp can't be opened (No such device)
The sound server will continue, using the null output device.
系统提示找不到设备/dev/dsp，我不知声卡是不是/dev/dsp 呢？
还有，我发现我的/etc目录下没有modprobe.conf 这个文件，不知是不是这个原因？ 斑竹帮我看看吧！ 安装ALSA需要重新配置内核，取消Kernel的声卡驱动。
不然ALSA抢不过内核自带的驱动，导致ALSA不能获得声卡的控制权。
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