Sound on D630
fedora at leemhuis.info
Mon Jul 2 03:53:57 CDT 2007
On 02.07.2007 10:45, James Jarvis wrote:
> I saw similar kernel messages when inserted the snd-hda-intel kernel module
> so I expect problem will need to be addressed upstream in that kernel
> module. [...]
>From reading the alsa-doc I suspect it's not a problem in the module --
I tend to say the module has problems to access the hardware, so it
might be some hardware-routing issue (but that is pure speculation).
single_cmd - Use single immediate commands to communicate with
codecs (for debugging only)
NB: If you get many "azx_get_response timeout" messages at
loading, it's likely a problem of interrupts (e.g. ACPI irq
routing). Try to boot with options like "pci=noacpi". Also, you
can try "single_cmd=1" module option. This will switch the
communication method between HDA controller and codecs to the
single immediate commands instead of CORB/RIRB. Basically, the
single command mode is provided only for BIOS, and you won't get
unsolicited events, too. But, at least, this works independently
from the irq. Remember this is a last resort, and should be
avoided as much as possible...
>> -----Original Message-----
>> From: Thorsten Leemhuis [mailto:fedora at leemhuis.info]
>> Sent: 01 July 2007 16:28
>> To: James.Jarvis at ed.ac.uk; linux-desktops at dell.com
>> Subject: Re: Sound on D630
>> /me again! Just FYI, in case someone stumbles about my posts
>> via google
>> On 30.06.2007 18:09, Thorsten Leemhuis wrote:
>>> On 30.06.2007 14:45, Thorsten Leemhuis wrote:
>>>> On 04.06.2007 12:25, James Jarvis wrote:
>>>>> [...] Has anyone managed to get the audio and modem
>> working on the
>>>>> High Definition Audio bus on the Dell Latitude D630?
>>>> Same question here (albeit I don't care about the modem);
>> my new Dell
>>>> D630 arrived yesterday and I installed Fedora Core 7 on it (¹). No
>>>> sound; I then tried a 2.6.22-rc6 kernel from rawhide --
>> same problem.
>>>> I tried several things (pci=nomsi, pci=noapic for the
>>>> kernel;snd-hda-intel options single_cmd=1, probe_mask=1 and some
>>>> others) -- no luck.
>>>> So, did anybody else get the D630 to play audio?
>>> I did get audio to work now with the Ubuntu Feisty kernel
>>> (vmlinuz-2.6.20-16-generic; installed in Fedora). I'm investigating
>>> now what they are doing differently (it does not work with a Fedora
>>> Core 7 kernel based on 2.6.20). But seems Ubuntu has the
>> same problem
>>> these days, as audio with kernel vmlinuz-2.6.22-7-generic (the one
>>> prepared for Gutsy Gibbon afaik) does not work.
>> I built a Fedora 7 kernel 2.6.21-1.3241.fc7 now (¹) and
>> modified it, so alsa and snd-hda-intel gets compiled in; I
>> found that hint on
>> Now audio is working fine!
>> I also tried to compile alsa-hg, but that did not help for me
>> (it helped in
>> Nevertheless it's not perfect:
>> hda_intel: azx_get_response timeout, switching to polling mode...
>> hda_intel: azx_get_response timeout, switching to single_cmd mode...
>> ALSA device list:
>> #0: HDA Intel at 0xfe9fc000 irq 21
>> Likely still something with the hardware routing.
>> (¹) -- that one contains a patch to recognize the DVD-reader
>> as well; yay! Thanks Chuck!
More information about the Linux-Desktops