Re: bug help (Wheezy kernel 3 and alsa problem)
On 08/10/11 20:10, Richard wrote:
> Hi, I could mark the title with OT , then I may get some help.
:-)
Although a subject of linux-kernel-3.0 and alsa might help (many of us
only download headers).
> I'm using wheezy with the 2.6.33RT kernel at the moment
Of no particular relevance - what kernel is that? (did you build it
yourself?).
> , I had to reload completly last night as when playing with the Alsa
> packages I manage to screw the dependency lists, and an apt-get
> autoremove did just that !
Unless you had apt-get autoclean enabled, the packages should be still
sitting in /var/cache/apt/archives.
>
> I've looked at the apt-get man page, and cant see a do it and minimal
> deps or better nodeps switch.
Do you mean "apt-get install something" without pulling in "recommended"??
> Upgrading the kernel upgrades some of the audio libs and binaries. I
> want to try to get to the bottom of this problem with kernel 3 where
> the sample rates on sound cards is limited to 41000 and 48000. At
> the moment my sound card is capable of:-
>
> Name = M Audio Delta 66: ICE1712 multi
> (hw:1,0) Host API = ALSA Max inputs = 12, Max
> outputs = 10 Default low input latency = 0.012 Default low
> output latency = 0.012 Default high input latency = 0.046
> Default high output latency = 0.046 Default sample rate =
> 44100.00 Supported standard sample rates for half-duplex 16 bit 12
> channel input = 8000.00, 9600.00, 11025.00, 12000.00, 16000.00,
> 22050.00, 24000.00, 32000.00, 44100.00, 48000.00, 88200.00, 96000.00
> Supported standard sample rates for half-duplex 16 bit 10 channel
> output = 8000.00, 9600.00, 11025.00, 12000.00, 16000.00, 22050.00,
> 24000.00, 32000.00, 44100.00, 48000.00, 88200.00, 96000.00 Supported
> standard sample rates for full-duplex 16 bit 12 channel input, 10
> channel output = 8000.00, 9600.00, 11025.00, 12000.00, 16000.00,
> 22050.00, 24000.00, 32000.00, 44100.00, 48000.00, 88200.00, 96000.00
>
> Every time kernel 3 is loaded it drops to half duplex and 48000
> only.
>
> I'm pretty sure its a bug but I want to be certain whether is a
> kernel bug, an Alsa bug or maybe a Udev bug.
What is your system architecture?
$ uname -r
will probably tell me what you need.
Is this a dedicated audio production machine?
Are you running rtirq etc?
http://www.rncbc.org/drupal/node/333
(thanks RM).
<snipped>
> So how do I just down load a kernel with the minimum deps to allow
> it to function, so I can test and see if the problem occurs with the
> alsa packages in their current working state.
>
> TIA
# apt-get --no-install-recommends
linux-image-3.0.0-1-whatever_your_architecture
I'd suggest you run this first:-
# apt-get -s --no-install-recommends
linux-image-3.0.0-1-whatever_your_architecture >
/root/kernel-3.0.0.0-1_upgrade
That will give you a list of changes for future reference.
Ralf Mardorf will surely have an opinion but he won't be back online
until later this today (at earliest).
Cheers
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