Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

The Toshiba Satellite A-305 S6916 laptop has six semi-touch buttons above the keyboard. The 'buttons' are capacitative touch areas which toggle on and off. They are back-lit when on, dark when off.

The buttons are audio controls -- mute, media, play, stop, back and next. When I touch the 'mute' button to disable it, it goes off for about half a second, then comes back on.

There is also a volume dial on the front of the laptop. When I scroll the dial, I see the software volume slider supposedly moving the volume up and down, but I get no sound.

If I start Rhythmbox and change the volume using the slider on the front of the laptop, Rhythmbox locks up.

I've hard booted the laptop; that didn't help.

I've had the laptop for a couple of years, and I've never had trouble with the sound before. I'm not exactly sure when the problem started, I don't do a whole lot that involves audio.

┌───────────────────────────── AlsaMixer v1.0.22 ──────────────────────────────┐
│ Card: HDA Intel                                      F1:  Help               │
│ Chip: Realtek ALC268                                 F2:  System information │
│ View: F3:[Playback] F4: Capture  F5: All             F6:  Select sound card  │
│ Item: Master [dB gain: 0.00]                         Esc: Exit               │
│                                                                              │
│     ┌──┐     ┌──┐     ┌──┐     ┌──┐     ┌──┐     ┌──┐                        │
│     │▒▒│     │▒▒│     │▒▒│     │  │     │▒▒│     │  │                        │
│     │▒▒│     │▒▒│     │▒▒│     │  │     │▒▒│     │  │                        │
│     │▒▒│     │▒▒│     │▒▒│     │  │     │▒▒│     │  │                        >
│     │▒▒│     │▒▒│     │▒▒│     │  │     │▒▒│     │  │                        >
│     │▒▒│     │▒▒│     │▒▒│     │  │     │▒▒│     │  │                        >
│     │▒▒│     │▒▒│     │▒▒│     │  │     │▒▒│     │  │                        >
│     │▒▒│     │▒▒│     │▒▒│     │  │     │▒▒│     │  │                        >
│     │▒▒│     │▒▒│     │▒▒│     │  │     │▒▒│     │  │                        >
│     │▒▒│     │▒▒│     │▒▒│     │  │     │▒▒│     │  │                        >
│     │▒▒│     │▒▒│     │▒▒│     │  │     │▒▒│     │  │                        │
│     │▒▒│     │▒▒│     │▒▒│     │  │     │▒▒│     │  │                        │
│     ├──┤     ├──┤     ├──┤     └──┘     └──┘     └──┘     ┌──┐     ┌──┐      │
│     │MM│     │MM│     │MM│                                │OO│     │OO│      │
│     └──┘     └──┘     └──┘                                └──┘     └──┘      │
│     100    100<>100 100<>100   0<>0   100<>100   0<>0                        │
│  < Master >Headphon Speaker    PCM    Front Mi Mic Boos  S/PDIF  S/PDIF D    │
└──────────────────────────────────────────────────────────────────────────────┘

I turned up the Master and Speaker volume in alsamixer, but that didn't help... the mute button is still enabled.

I also verified that the youtube video that I was watching actually did have audio ;-)

This issue is similar to Sound muted in milliseconds after unmute, although I can't even hear 100ms worth of sound, even when I do hit the unmute button. I do see the light turn off and on again though.

I also tried plugging in earphones; that didn't help.

share|improve this question

1 Answer 1

up vote 1 down vote accepted

I started working through the procedure at help.ubuntu.com; once I got through part 1, (which involves pasting a mess of apt-get commands, and rebooting), I was able to un-mute the laptop successfully. The mute 'button' still appears to be activated, but alsamixer shows that it is not:

┌──────────────────────────── AlsaMixer v1.0.24.2 ─────────────────────────────┐
│ Card: HDA Intel                                      F1:  Help               │
│ Chip: Realtek ALC268                                 F2:  System information │
│ View: F3:[Playback] F4: Capture  F5: All             F6:  Select sound card  │
│ Item: Master [dB gain: 0.00]                         Esc: Exit               │
│                                                                              │
│     ┌──┐     ┌──┐     ┌──┐     ┌──┐     ┌──┐     ┌──┐                        │
│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │  │                        │
│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │  │                        │
│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │  │                        >
│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │  │                        >
│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │  │                        >
│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │  │                        >
│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │  │                        >
│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │  │                        >
│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │  │                        >
│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │  │                        │
│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │▒▒│     │  │                        │
│     ├──┤     ├──┤     ├──┤     └──┘     └──┘     └──┘     ┌──┐     ┌──┐      │
│     │OO│     │OO│     │OO│                                │OO│     │OO│      │
│     └──┘     └──┘     └──┘                                └──┘     └──┘      │
│     100    100<>100 100<>100 100<>100 100<>100   0<>0                        │
│  < Master >Headphon Speaker    PCM    Front Mi Mic Boos  S/PDIF  S/PDIF D    │
└──────────────────────────────────────────────────────────────────────────────┘

(Note that the 'mute' indicator for <Master> is now set to 00 rather than MM)

I've verified that I can hear audio on YouTube.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.