On Tuesday 15 December 2009 17:16:33 walt wrote: > On 12/15/2009 04:15 AM, Xi Shen wrote: > > hi, > > > > my laptop is thinkpad t61. according to the output of lspci -k > > > > 00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio > > Controller (rev 03) > > Kernel driver in use: HDA Intel > > Kernel modules: snd-hda-intel > > > > the driver is already loaded. and i have use alsaconf, and alsamixer > > to set the configuration. /etc/init.d/alsasound is started, but my > > system still does not have sound. > > > > what have i missed? > > Did you include any of the CONFIG_SND_HDA_CODEC_* options in your > kernel config? I built them all as modules, and I notice that only > one of them actually gets loaded (in my case, the Realtek codec.) so > I'm assuming that only one is needed. On my laptop (different card) the sound is always muted unless I increase the volume with e.g. mplayer/alsamixer, or push one of the physical hardware buttons on the laptop that increase/lower the volume. That seems to unmute it. I have to repeat after every reboot. -- Regards, Mick