On Thu, Apr 22, 2010 at 3:30 PM, Colin Law <clan...@googlemail.com> wrote: > HI > > I have picked up the flash image from dysentry referenced in > http://www.joggler.info/forum/viewtopic.php?f=33&t=235 and it works > fine. In http://www.jogglerwiki.info/index.php?title=Ubuntu_Netbook_Remix > it is suggested the the crackling sound can be fixed by adding > idle=halt to Grub.cfg. I can't find the file to edit. Can anyone > help?
From discussion on this previously on the list, I think we concluded that the issue is most likely related to the powersaving of the audio chipset. That the audio chipset driver (ALSA) is not able to resume when the kernel decides to put the system in power saving mode. The workaround would be to indicate to ALSA not to enter in powersaving at all. The problem solution would be to contact the alsa-devel mailing list and ask for some help on this issue. See more for both at http://www.mail-archive.com/ubuntu-uk@lists.ubuntu.com/msg23128.html Daniel Case (from this list) sent an e-mail to alsa-devel, http://mailman.alsa-project.org/pipermail/alsa-devel/2010-April/026774.html but sadly there have been no reply. I do not own a Joggler (though I would really love to) so I can only give you guidance on how to solve. One way to solve the problem within this list would be to get the source code of the Joggler (see http://mailman.alsa-project.org/pipermail/alsa-devel/2010-April/026774.html ) and example the Linux kernel source code (includes ALSA). Then, identify the version of the kernel, grab the official stock Linux kernel from www.kernel.org, and perform a 'diff -r linus_kernel joggler_kernel' between the two directories (with source code). Any differences in the ALSA subdirectories would be changes that Joggler (OpenPeak) did to get sound working. These should be a few lines of changes, which should be easy to update to the latest Linux kernel. You can post these changes to the list. For a similar situation with audio driver support, see http://simos.info/blog/archives/984 Simos -- A. Because it breaks the logical sequence of discussion Q. Why is top posting bad? -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
