> > Thursday 14 of February 2008 13:14:18 Takashi Iwai napisał(a): > > > And, does a similar problem like Grzegorz's case occur on your laptop? > > > Some HP laptops (so far, AMD SB450-based) occasionally cause a hang-up > > > during recording from the mic when HD is accessed. This is far more > > > nasty problem, and it's interesting to know whether this happens on > > > other chipset. > > > > Hi Takashi. I've experimented a little with power saving in HD Intel > > Audio. I've noticed that using power saving with timeout set to 10 sec. > > solves my problem partially. When arecord stops recording I can turn it > > off, wait 10 seconds, and recording works back again. This is obvious, > > because power saving simply powers off and on device. I was wondering > > that maybe we can implement ioctl or something that will dump "state" > > (informations that will help in debuging) of device, when recording is > > not working, and "state" just after power on to compare what causes > > breakage ? Can you give me some tips about what informations are userful > > in debuging ? > > Well, the question is what "state". Interesting thing is that it's > specific to ATI SB, and seems irrelevant with codec chip. So, the > codec information is likely useless. But, I don't think the broken > situation is reflected on PCI reg space. > > BTW, Andi Kleen also has a similar problem on his machine and he used > noirqdebug boot option. But, in his case, the irq line of HD audio > device isn't shared with others. Hi Andi. Do you have similiar problem, and did you resolve it ? Links to threads are below: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2449 http://mailman.alsa-project.org/pipermail/alsa-devel/2008-February/005817.html http://mailman.alsa-project.org/pipermail/alsa-devel/2008-February/006042.html -- Greetings Grzegorz Chwesewicz, Chilan mailto:grzegorz.chwesewicz@xxxxxxxxxx _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
