No sound after upgrade from 7.10 to 8.04

O. Sinclair o.sinclair at
Wed Aug 5 01:12:41 CDT 2009

Sorry I got it all wrong - normally the sound problems arise when 
someone installs the modemdrivers. As for Dell PPA you found the correct 

did you install the linux-ubuntu-modules?

As I get it you seem to have "sort of sound", something I have never 
experienced. Either it has been gone (mixer icon is crossed out) or it 
works in all things I use (musicplaying, videoplaying, youtube/flash 
videos etc).

Hope you can sort it out and sorry I am not able to assist.

Bob Haugen wrote:
> Thanks a lot for the detailed reply.
> On Tue, 04 Aug 2009 17:30:14 +0200 <o.sinclair at> wrote:
>> Subject: Re: No sound after upgrade from 7.10 to 8.04
>> This is a known problem if/when you install the modem drivers and then
>> update the kernel.
> I have not installed any modem drivers on purpose.  Don't use a modem.
>>  It is a loooong story but here is the most recent
>> advice from Dell maintainers (the wiki is never updated so is by now
>> pretty useless):
> That's clear...
>> Basically, if you have the Dell ppa repository and have installed the
>> DKMS packages you should install the hsf-modem drivers and then be OK
>> with sound. You must install linux-ubuntu-modules package first of all.
> How do I tell if I have the "Dell ppa repository and have installed
> the DKMS packages"?
> My current situation is that flash and sound sorta work.  If look at a
> flash movie in the browser, the sound no longer works for music and
> other movie files outside the browser until I shut down the browser.
> Then the other sounds might work, or I might have to reboot to make
> them work again.
> So it's better than nothing, and I'm reluctant to do anything that
> might make it worse.
>> So I've got a better solution assembled now that i've uploaded to the
>> dell-team PPA.  Here's what it looks like:
>> hsfmodem -> repackaed original conexant deb that pre-depends on
>> hsfmodem-base-dkms
>> hsfmodem-base-dkms -> deb that contains the ALSA 1.0.16 tree with the
>> ubuntu patchset (as of 2.6.24-24) applied and the conexant patchset applied
>> The way it will work is that provided you've got the headers installed
>> for the 2.6.24 based kernel you intend on booting into, it will build
>> the ALSA tree against those kernel headers prior to the reboot into the
>> new kernel.  There is a header postinstall script that will execute DKMS
>> to do these actions.  During the next reboot, it will take longer than
>> normal because conexant's init script for hsfmodem triggers and links
>> with snd-hda-intel that was rebuilt by DKMS.  The end result should be a
>> functional audio driver and functional modem.
> How do I tell if have the proper headers installed?
> I don't need a functional modem (that I know of).  Just audio drivers.
> So maybe all the above advice is useless to me?
>> Hopefully this works out for you modem folks.
> So this is all about modems, which I don't need?  Or am I missing something?
>> As for flash headaches - do install restricted-extras package or
>> download flash-installer from Adobe website. Both work in my experience.
> I installed from the Adobe website.  Flash now works.
>> sound headeaches: install restricted-extras, install w32codecs and for
>> dvd dvd2css (I think, you had better check)
> Ok, so are those the things to do to improve the sound situation (only)?
>> Add Medibuntu repositories first, google on Medibuntu.
> Found that.
>> For Dell PPA repo
>> check out Dell pages.
> Is this it?
> What do I need to do with it? Anything?
>> As a general advice I use AptonCD as a sort of system backup these days
>> in case I have to reinstall or update other users computers instead of
>> downloading GBs of updates.
> Thanks for the tip.  I'll try it after I get everything working better.
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