[ubuntu-uk] Joggler crackling, idle=halt in Grub.cfg
HI I have picked up the flash image from dysentry referenced in http://www.joggler.info/forum/viewtopic.php?f=33t=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? Colin -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Joggler crackling, idle=halt in Grub.cfg
On Thu, 2010-04-22 at 13:30 +0100, Colin Law wrote: HI I have picked up the flash image from dysentry referenced in http://www.joggler.info/forum/viewtopic.php?f=33t=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? grub.cfg is in /boot/grub/grub.cfg However, this is an automatically generated file and I wouldn't update it directly. It is generated by the files that are in /etc/grub.d and uses the configuration file /etc/default/grub. There's a great online tutorial[1] if you want to have a go at customising grub. [1] http://www.dedoimedo.com/computers/grub-2.html Bruno -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Joggler crackling, idle=halt in Grub.cfg
On 22 April 2010 14:44, Bruno Girin brunogi...@gmail.com wrote: On Thu, 2010-04-22 at 13:30 +0100, Colin Law wrote: HI I have picked up the flash image from dysentry referenced in http://www.joggler.info/forum/viewtopic.php?f=33t=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? grub.cfg is in /boot/grub/grub.cfg No it isn't, not on this image. That is what confused me. The only thing there is grubenv. Colin However, this is an automatically generated file and I wouldn't update it directly. It is generated by the files that are in /etc/grub.d and uses the configuration file /etc/default/grub. There's a great online tutorial[1] if you want to have a go at customising grub. [1] http://www.dedoimedo.com/computers/grub-2.html Bruno -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/ -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Joggler crackling, idle=halt in Grub.cfg
- Original message - On 22 April 2010 14:44, Bruno Girin brunogi...@gmail.com wrote: On Thu, 2010-04-22 at 13:30 +0100, Colin Law wrote: HI I have picked up the flash image from dysentry referenced in http://www.joggler.info/forum/viewtopic.php?f=33t=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? grub.cfg is in /boot/grub/grub.cfg No it isn't, not on this image. That is what confused me. The only thing there is grubenv. Is there anything that could give you a hint in grubenv? Alternatively do any of the scripts in /etc/grub.d have any hint as to where the file is? Colin However, this is an automatically generated file and I wouldn't update it directly. It is generated by the files that are in /etc/grub.d and uses the configuration file /etc/default/grub. There's a great online tutorial[1] if you want to have a go at customising grub. [1] http://www.dedoimedo.com/computers/grub-2.html Bruno -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/ -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/ -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Joggler crackling, idle=halt in Grub.cfg
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=33t=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/
Re: [ubuntu-uk] Joggler crackling, idle=halt in Grub.cfg
Does 'locate grub.cfg' tell you where the file is? Otherwise, try the find command. I've only tried the telnet hack on my Joggler so far - it didn't work for me. I'm putting together a UNR usb stick now, to give that a go. On 4/22/10, Simos Xenitellis simos.li...@googlemail.com wrote: 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=33t=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/ -- Sent from my mobile device -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Joggler crackling, idle=halt in Grub.cfg
HI I have picked up the flash image from dysentry referenced in http://www.joggler.info/forum/viewtopic.php?f=33t=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? Colin Joggler uses .efi instead of BIOS to boot. If you're booting from USB stick check the boot.nsh file. It should look like fs1: cd \efi\grub grub You're likely to find grub.cfg in the same folder as the grub.efi bootloader application. In this case it's at /etc/grub/grub.cfg Cheers Chris -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Joggler crackling, idle=halt in Grub.cfg
You're likely to find grub.cfg in the same folder as the grub.efi bootloader application. In this case it's at /etc/grub/grub.cfg Sorry, that was a typo, it should be efi not etc (so you'll find it at /efi/grub/grub.cfg) Chris -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
