Member Avatar for anita.kcx

Hi,

I am using a Lenovo 3000 N100 and have both Windows XP and Ubuntu 11.10 installed. No sound is comming from the speakers or the headphones. In Windows XP the audio control icon is also not visible. In Ubuntu the audio controls are visible and working but still no sound. When I check the click the audio hardware tab it shows something like 'Dummy stereo...'.

Could anyone tell me what the exact problem is.

Thanks

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Short diagnosis and context: the “Dummy…” output in Ubuntu normally means the Linux sound stack (ALSA/PulseAudio) cannot see a real hardware device — usually a missing kernel driver/module or the card not being recognized. The missing audio icon in Windows XP typically points at a driver or Windows Audio service problem. As asked, whether the laptop ever produced sound helps decide if this is software/configuration or a hardware fault. ’s Windows-driver suggestion is valid for XP; the Linux side needs a kernel/ALSA check. (help.ubuntu.com)

Quick Linux checklist (run in a terminal):

aplay -l
lspci -v | grep -A7 -i audio
lsmod | grep snd
sudo alsa force-reload
pulseaudio --kill && pulseaudio --start
alsamixer

If aplay -l shows “no soundcards found” or lspci shows no audio device, the kernel/ALSA modules aren’t present or the card is disabled — try sudo modprobe snd-hda-intel or add the module to /etc/modules. If the card is present but UI still shows “Dummy”, reloading ALSA and restarting PulseAudio often restores devices (some users report running sudo alsa force-reload twice). The Ubuntu sound troubleshooting procedure documents these steps. (help.ubuntu.com)

Windows/firmware checks: on the XP side, inspect Device Manager (Control Panel → System → Hardware → Device Manager) for missing/flagged audio devices and reinstall the vendor driver or run the Windows audio troubleshooter. Ensure the Windows Audio service is started. Also verify the BIOS has onboard audio enabled — many laptops allow disabling the integrated sound chip there. (learn.microsoft.com)

Notes and next steps: Ubuntu 11.10 (Oneiric) is end-of-life (May 9, 2013), so testing with a current live USB or a supported release is strongly recommended — newer kernels include many audio driver fixes. If both OSes still fail to detect the device after the checks above, suspect hardware failure (try a live distro and/or a USB audio dongle to confirm). (fridge.ubuntu.com)

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Member Avatar for Xlphos

Hello,

Have you just got this laptop or is this a new problem?

Member Avatar for caperjack

sounds like you need drivers ,windows ones here but I don't see any Linux ones

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