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**offramp** · Apr 30, 2009, 10:53 PM

Re: Sound Issues after upgrading to Jaunty - Dell Laptops

Hi all,

have just been reading through /usr/share/doc/alsa-base/driver/ALSA-Configuration.txt and have identified a few Dell specific options for the STAC92xx cards. I will give each of these a go and let you know the result

Cheers

**offramp** · May 03, 2009, 06:55 AM

Re: Sound Issues after upgrading to Jaunty - Dell Laptops

Hi all,

An update. Discovered that the laptops have different CODECS and for some reason are using different versions of the ALSA driver. My wifes is using Ver 1.0.17, whilst mine is using 1.0.18rc3.

Reading through the change log at alsa-project.org, I noticed that for the 1.0.19 driver the following line was included in the HDA CODEX section, ALSA: hda - Check model for Dell 92HD73xx laptops (which is my CODEC) as well as other updates for Dell Studio 15s. I will be upgrading the alsa driver to the latest version to see how that goes.

Cheers

g. · May 09, 2009, 01:48 AM

Re: Sound Issues after upgrading to Jaunty - Dell Laptops

Hi,

I have the same problem in a Dell Precision M2400. The sound used to work with 8.10 and it currently works with the former kernel (now it is 2.6.28-11).

I have read dozen of posts and changed the options in

Code:

/etc/modprobe.d/alsa-base.conf

without success. Currently, my last lines are

Code:

options snd-pcsp index=-2
options snd-hda-intel model=dell-m4-2
alias snd-card-0 snd-hda-intel
options snd-hda-intel enable_msi=1

since, once, with

Code:

model=dell-m4-2

the sound worked! (unfortunately I'm not able to reproduce it). I have tried all the possible combinations mainly by chance and I wonder if some info about the various options exist somewhere.

Btw, my

Code:

lspci -nnvv

is

Code:

00:1b.0 Audio device [0403]: Intel Corporation 82801I (ICH9 Family) HD Audio Controller [8086:293e] (rev 03)
    Subsystem: Dell Device [1028:0234]                                 
    Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- 
    Latency: 0, Cache Line Size: 64 bytes                                
    Interrupt: pin A routed to IRQ 21                                  
    Region 0: Memory at f6fdc000 (64-bit, non-prefetchable) [size=16K]                  
    Capabilities: <access denied>                                    
    Kernel driver in use: HDA Intel                                   
    Kernel modules: snd-hda-intel

I'm really, really, frustrated about the bunch of configuration issues that showed up with the version 9.04 (concerning also wifi connection or flash etc.).

Considering the days spent on it I wonder if it is cost-effective...

Thanks for any suggestion you might have.

Best,
g.

**baldsue** · May 09, 2009, 04:28 AM

Re: Sound Issues after upgrading to Jaunty - Dell Laptops

This might help you: http://kubuntuforums.net/forums/inde...9195#msg179195

**offramp** · May 09, 2009, 06:40 AM

[SOLVED] Sound Issues after upgrading to Jaunty - Dell Laptops

Hi,

well I finally got my sound working (still no auto mute speakers on headphone insertions but I am working on that one as well). The first thing I did was to install the latest drivers from http://www.alsa-project.org/main/ind...dule-hda-intel I am using 1.0.19, but after this post will upgrade to 1.0.20. The changelog from 1.0.18 to 1.0.19 mentioned many changes for my codec, and there are some more in 1.0.20

homer@studio15-laptop:~$ cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.19.
Compiled on May 6 2009 for kernel 2.6.28-11-generic (SMP).

I then added the appropriate model to my alsa-base.conf file (based on the codec - for me this was dell-m6). I had tried this before and it did not work, however I think that this may have been in 1.0.18rc3 (I tried so many things I cannot remember!).

homer@studio15-laptop:~$ cat /proc/asound/card0/codec#0
Codec: IDT 92HD73C1X5

In KMix, I then started trying different combinations (alsa driver warns you that all channels are muted by default) and found that I had to mute the three analog loopback channels to produce sound (?). I am still reading the datasheet for the IDT chip, and trying to understand the correlation between the ports in the datasheet and the description in KMix. Anyway I have attached a screenshot with my descriptions.

Hope this helps. I am reasonably new to linux, and havent dabbled in any sort of hardware development/control since uni (some time ago!). I think that this problem has piqued my interest yet again, and will endeavour to provide more information as I find it.

Attached Files

g. · May 09, 2009, 09:18 AM

Re: [SOLVED] Sound Issues after upgrading to Jaunty - Dell Laptops

the good news is that now my sound works.

the bad news is that the workaround is simply crazy.

let me reassume...

I read also your posts, with the link within, and I was perceived to upgrade the alsa drivers. However, before doing it, and without any rational reason, I FIRST tried your Kmix configuration...

IT WORKS!!!

keeping my

Code:

cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.18rc3.

with

Code:

cat /proc/asound/card0/codec#0 | grep Codec
Codec: IDT 92HD71B7X

and

Code:

uname -r
2.6.28-11-generic

thanks a lot!

now I have more energies to fight against the wifi WPA2 stuff...

best,
g.

the headphones are not automatically recognized...

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[SOLVED] Sound Issues after upgrading to Jaunty - Dell Laptops

[SOLVED] Sound Issues after upgrading to Jaunty - Dell Laptops

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