MEPISThis forum is for the discussion of MEPIS Linux.
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I've just installed Mepis 6.0 on my IBM Thinkpad R50e laptop with sound card Intel 82801DB-ICH4.
When I boot Mepis from the live CD, sound playback works fine (e.g. the speaker-test command plays back noise).
When I boot from the Mepis installed on the hard disk, everything looks OK (no errors reported from the sound system) but no sound either.
I do get sound from the system bell on the disk install, but otherwise nothing.
I can't see any configuration differences between the two and I've checked that the volume's turned up with kmix and on the laptop's own sound controls.
My previous installation of SuSE 10.1 had similar problems : sound didn't work on SuSE 10.0, started working again when I upgraded to 10.1 and mysteriously stopped after some patch or other, never to return.
Most LiveCD's have a lot of stuff that comes pre-built into the kernel or at least a lot of pre-built modules (this is to ensure that their CD works on most hardware without the user needing to configure anything). A quick check would be to insert the CD and boot it up. At a command line run
Code:
lsmod
.
Write down or print off that output and then do the same when it's booted form the hard disk.
You may find that the Kernel that is on the CD is configured differently than the one that gets installed to the HD.
I don't see any relevant differences in lsmod, but it may be that I'm missing something.
I see 11 modules that look relevant and they're all loaded in both : snd_intel8x0, snd_intel8x0m, snd_ac97_codec, snd_ac97_bus, snd_pcm_oss, snd_mixer_oss, snd_pcr, snd_timer, snd, soundcore and snd_page_alloc.
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