I am very sorry that brought you guys the inconvenience. I am very surprise, too. Just as what I usually do, I opened the firefox, logined my gmail account, then wrote and sent out the email which you have received.
On 10/19/07, Mick <[EMAIL PROTECTED]> wrote: > On Thursday 18 October 2007, Chuanwen Wu wrote: > > Hi, > > I have a sound problem with my dell1400 laptop: I have no sound from > > the speakers in the laptop but I can have sound from headphones after > > I insert them. > > > > When I used $alsamixer -V all, I got these informations: > > > > Card: HDA Intel > > │ Chip: SigmaTel STAC9228 > > │ View: Playback Capture [All] > > │ Item: Master [dB gain=-33.75, -33.75] > > Item: PCM [dB gain=-10.00, -10.00] > > Item: Front [dB gain=-45.00, -47.25] > > Item: Mic as Output > > Item: IEC958 > > Item: ADCMux > > Item: InMux [dB gain=30.00, 30.00] > > Item: InVol [dB gain=16.50, 16.50] > > > > As you can see, Mic and IEC958's values are both 0. > > We probably can't see what you're describing. Can you unmute one at a time or > increase their volume to check if someting gives? As you know, the output of alsamixer is in graphics mode, so I felt very uncomfortable when I described this problem and selected the information from alsamixer. I appology for this. Thanks goodness we have amixer: $ amixer Simple mixer control 'Master',0 Capabilities: pvolume pswitch Playback channels: Front Left - Front Right Limits: Playback 0 - 127 Mono: Front Left: Playback 127 [100%] [0.00dB] [on] Front Right: Playback 127 [100%] [0.00dB] [on] Simple mixer control 'PCM',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 255 Mono: Front Left: Playback 255 [100%] [0.00dB] Front Right: Playback 255 [100%] [0.00dB] Simple mixer control 'Front',0 Capabilities: pvolume pswitch Playback channels: Front Left - Front Right Limits: Playback 0 - 127 Mono: Front Left: Playback 127 [100%] [0.00dB] [on] Front Right: Playback 127 [100%] [0.00dB] [on] Simple mixer control 'Mic as Output',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'ADCMux',0 Capabilities: cswitch Capture channels: Front Left - Front Right Front Left: Capture [on] Front Right: Capture [on] Simple mixer control 'InMux',0 Capabilities: cvolume Capture channels: Front Left - Front Right Limits: Capture 0 - 4 Front Left: Capture 4 [100%] [40.00dB] Front Right: Capture 4 [100%] [40.00dB] Simple mixer control 'InVol',0 Capabilities: cvolume Capture channels: Front Left - Front Right Limits: Capture 0 - 14 Front Left: Capture 14 [100%] [21.00dB] Front Right: Capture 14 [100%] [21.00dB] Simple mixer control 'Input Source',0 Capabilities: enum Items: 'Front Line' Item0: 'Front Line' You can see above that, I have set the largest volume(100%) except the "Mic as Output" and 'IEC958' and 'ADCMux', I am not very sure what their functions are when controlling my sound card. > > > I always think that headphones are equal with speakers, because them > > are both connected to the same thing in physics. > > But now, why my headphones are aloud but my speakers are silent. > > In Windows xp, both of them work very well. Headphones were after I > > insert them and otherwise, the speakers loud . > > I too thought that this is a hardware issue . . . I also consider the switching between headphone and speakers attached as hardware. So I am also surprised when I found this problem. I use the Alsa-driver-1.0.14-rc3, which is a unstable one. And the weird thing is that *ONLY* this version's driver can drive my sound card. I also tried the in-kernel(2.6.22-r2) one; the version 1.0.14, which is the newest stable one that came out after 1.0.14-rc3, and also the 1.0.15-rc2 one. But none of them work. > -- > Regards, > Mick > > Best regards, wcw
