Update: it seems hotplug/coldplug is the culprit. If I disable everything, there is no hum. If I re-enable coldplug (COLDPLUG="yes"), then the hum re-appear.
What about coldplug could be causing problems? Where should I go from here to solve this problem? On Sun, Mar 27, 2011 at 6:31 PM, Colleen Josephson <[email protected]> wrote: > I had a question related to the amd64 minimal livecd. > > What exactly is happening at the "Unpacking firmware" stage of the boot > process? > Is there a way to find out exactly what firmware is being loaded? Or a way > to boot without loading the firmware? > > Why? It is a somewhat strange reason. I am having issues with a > high-pitched hum coming from the audio jacks (occurs on both MB sound and a > creative sound card) > I have a very nice sound system (a sound board, studio monitors...I am an > audio hobbyist), and no other system has these problems, so I am relatively > sure that it is not the speakers/cables. > > I have been booting from the liveCD, and I have pinpointed the point at > which the hum starts to something near the *Unpacking firmware stage. > I realize this is somewhat esoteric, but it renders my system almost > useless, and would greatly appreciate any input. > > I did interactive mode. The interactive mode only prompts for some of the > items. Among the items it does not prompt for is the firmware unpacking. It > just goes and does it. > > -- > Colleen Josephson > Dept. of Electrical Engineering and Computer Science > Massachusetts Institute of Technology > Class of 2013 > -- Colleen Josephson Dept. of Electrical Engineering and Computer Science Massachusetts Institute of Technology Class of 2013
