Comment 14 for bug 574137

The Toshiba NB305 that I had was replaced (by the dealer) as the screen backlight ceased to function on the first machine after I had it for about 2 weeks. I installed Ubuntu Netbook Edition10.04 (http://www.ubuntu.com/getubuntu/download-netbook) on the new machine from a USB drive. I had some mundane problems getting the drive partitioned as I wanted but in the end it installed OK. I used apt-get to update and upgrade and dist-upgrade. The machine booted very slowly so I changed the SATA drive setting in the BIOS to "compatibility" from AHCI. I also changed the GRUB_CMDLINE_LINUX_DEFAULT line in /etc/default/grub to
GRUB_CMDLINE_LINUX_DEFAULT="nohz=off highres=off". The machine now boots quickly. Unfortunately it does not recover from suspend (closing the cover)... but that is another issue that I have to work on. The previous installation on the other machine would wake up just fine.

When booting from the live USB drive, I checked the sound and it was fine. I could not make it fail. After I installed Ubuntu Netbook Edition on the hard drive (as outlined above) the sound was just fine. It has yet to fail. So the sound problem that I observed previously on the other machine and installation must have been configuration related.

Sorry that I can no longer be of any help in debugging the previous problem. It the problem comes back I will repost.