re:bootline
the grub bootline like you guessed is accessible through the bootline editor. so the before would look similar to :
Code:
kernel (hd0,1)/vmlinuz root=/dev/sda6 vga=0x317 selinux=0 splash=silent resume=/dev/sda11 desktop elevator=as showopts
and the after
Code:
kernel (hd0,1)/vmlinuz root=/dev/sda6 vga=0x317 selinux=0 splash=silent resume=/dev/sda11 desktop elevator=as showopts acpi_sleep=s3_bios
changing the commands from the boot screen is, however, a non permanant change which you would have to do every time you boot. default options can be changed permanantly through modifying /boot/grub/menu.1st
re:apm acpi ...
I'm not sure about the situation regarding these- could you post up the results of
Code:
dmesg | egrep -i 'apm|acpi'
(this should show details of what apm and acpi are doing when the kernel is loaded).