On Fri, 2007-05-25 at 11:27 +0530, Nobin Mathew wrote: > I am implementing power management in my ALSA sound drivers. ALSA > drivers are not working properly after resume. All registers values > are proper and I am able to read back the codec register contents. > Iirc, you are using an AC97 codec. This means that the AC97 link is running as expected after resume. > If I do a playback after resume then I am getting lots of "underrun". > Do you hear any audio at all ? The underruns are probably being caused by the AC97 Tx FIFO not being filled quickly enough by DMA. Is your DMA being set up correctly after resume ? > > After a reboot playback is working fine. > > Is there any known issues with ALSA power management? ALSA suspend and resume works fine on lots of devices (all the ones I have). I suspect you have a driver problem. Liam _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
