I can't understand usplash being the cause, but there's clear evidence that it is at least involved somehow.
** Changed in: linux-source-2.6.20 (Ubuntu) Sourcepackagename: linux-source-2.6.20 => usplash -- Loud beep when installing feisty-desktop-i386 on DQ965COEKR motherboard https://launchpad.net/bugs/80535 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs