alsa时好时坏，不知道是怎么一回事

autumnc

受不了xfs的速度，重新装了一遍系统，改用ext4,但是声音总是有问题，有的时候启动有声音，有时没有，也没显示啥错误，alsamixer也能用，就是没法改音量，好奇怪啊，原来的系统下面是好好的啊，还有在X下面老显示：Xlib:  extension "Generic Event Extension" missing on display ":0.0".但又不影响使用

maxint

这个提示应该问题不大，我原来也出现这提示的，后来不管它，现在又没了
再安装个pulseaudio比较好，这样就可以混音了，如一边听音乐，一边看视频。

rabbit407

Post by autumnc;1963035
受不了xfs的速度，重新装了一遍系统，改用ext4,但是声音总是有问题，有的时候启动有声音，有时没有，也没显示啥错误，alsamixer也能用，就是没法改音量，好奇怪啊，原来的系统下面是好好的啊，还有在X下面老显示：Xlib:  extension "Generic Event Extension" missing on display ":0.0".但又不影响使用

Xlib:  extension "Generic Event Extension" missing on display ":0.0"
这个问题我也一直有，我去老外的论坛看了下，说这是一个waring.正常，等以后升级就好了。

qiang_liu8183

楼主和我遇到了一样的问题，rc.conf改一下就行了，把你的贴上来，我帮你改～～～

autumnc

#
# /etc/rc.conf - Main Configuration for Arch Linux
#

# -----------------------------------------------------------------------
# LOCALIZATION
# -----------------------------------------------------------------------
#
# LOCALE: available languages can be listed with the 'locale -a' command
# HARDWARECLOCK: set to "UTC" or "localtime"
# USEDIRECTISA: use direct I/O requests instead of /dev/rtc for hwclock
# TIMEZONE: timezones are found in /usr/share/zoneinfo
# KEYMAP: keymaps are found in /usr/share/kbd/keymaps
# CONSOLEFONT: found in /usr/share/kbd/consolefonts (only needed for non-US)
# CONSOLEMAP: found in /usr/share/kbd/consoletrans
# USECOLOR: use ANSI color sequences in startup messages
#
LOCALE="en_US.utf8"
HARDWARECLOCK="local"
USEDIRECTISA="no"
TIMEZONE="Asia/Shanghai"
KEYMAP="us"
CONSOLEFONT=
CONSOLEMAP=
USEcolor="yes"

# -----------------------------------------------------------------------
# HARDWARE
# -----------------------------------------------------------------------
#
# MOD_AUTOLOAD: Allow autoloading of modules at boot and when needed
# MOD_BLACKLIST: Prevent udev from loading these modules
# MODULES: Modules to load at boot-up. Prefix with a ! to blacklist.
#
# NOTE: Use of 'MOD_BLACKLIST' is deprecated. Please use ! in the MODULES array.
#
MOD_AUTOLOAD="yes"
#MOD_BLACKLIST=() #deprecated
MODULES=(acpi-cpufreq sony-laptop)

# Scan for LVM volume groups at startup, required if you use LVM
USELVM="no"

# -----------------------------------------------------------------------
# NETWORKING
# -----------------------------------------------------------------------
#
# HOSTNAME: Hostname of machine. Should also be put in /etc/hosts
#
HOSTNAME="ArchLinux"

# Use 'ifconfig -a' or 'ls /sys/class/net/' to see all available interfaces.
#
# Interfaces to start at boot-up (in this order)
# Declare each interface then list in INTERFACES
#   - prefix an entry in INTERFACES with a ! to disable it
#   - no hyphens in your interface names - Bash doesn't like it
#
# DHCP:     Set your interface to "dhcp" (eth0="dhcp")
# Wireless: See network profiles below
#
eth0="dhcp"
wlan0="dhcp"
INTERFACES=(eth0 wlan0)

# Routes to start at boot-up (in this order)
# Declare each route then list in ROUTES
#   - prefix an entry in ROUTES with a ! to disable it
#
gateway="default gw 192.168.0.1"
ROUTES=(!gateway)

# Enable these network profiles at boot-up.  These are only useful
# if you happen to need multiple network configurations (ie, laptop users)
#   - set to 'menu' to present a menu during boot-up (dialog package required)
#   - prefix an entry with a ! to disable it
#
# Network profiles are found in /etc/network.d
#
# This now requires the netcfg package
#
#NETWORKS=(main)

# -----------------------------------------------------------------------
# DAEMONS
# -----------------------------------------------------------------------
#
# Daemons to start at boot-up (in this order)
#   - prefix a daemon with a ! to disable it
#   - prefix a daemon with a @ to start it up in the background
#
DAEMONS=(syslog-ng network netfs crond dbus hal alsa cpufreq mpd)

qiang_liu8183

覆盖你的rc.conf，再贴一下lsmod的回显～～～

autumnc

好像可以了，谢谢楼上的

qiang_liu8183

Post by autumnc;1963174
好像可以了，谢谢楼上的

再贴一下lsmod的回显～～～

xcxxb

关键是改动MODULES部分吗?

xblx

我的alsamixer也是调节音量无效，都是直接用音箱调节的。要怎么改？

1. MODULES=(!8139cp 8139too mii loop ipv6 tun fuse slhc ac97_bus snd-mixer-oss snd-pcm-oss snd-page-alloc snd-pcm snd-timer snd snd-ac97-codec snd-intel8x0 soundcore vboxdrv )

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1. $ lsmod | grep snd
   
2. snd_intel8x0           30876  3
   
3. snd_ac97_codec        102308  1 snd_intel8x0
   
4. snd_seq_oss            31872  0
   
5. snd_seq_midi_event      8192  1 snd_seq_oss
   
6. snd_seq                49968  4 snd_seq_oss,snd_seq_midi_event
   
7. snd_seq_device          8204  2 snd_seq_oss,snd_seq
   
8. snd_pcm_oss            40192  0
   
9. snd_pcm                70020  4 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
   
10. snd_timer              21384  3 snd_seq,snd_pcm
    
11. snd_page_alloc         10120  2 snd_intel8x0,snd_pcm
    
12. snd_mixer_oss          16512  2 snd_pcm_oss
    
13. snd                    50852  11 snd_intel8x0,snd_ac97_codec,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_pcm,snd_timer,snd_mixer_oss
    
14. soundcore               8160  2 snd
    
15. ac97_bus                3584  1 snd_ac97_codec
    

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