Comment 13 for bug 47775

(In reply to comment #2)
> Are you certain, that a restart is needed?
>
>

A full shutdown and boot up would be preferred. Enabling and disabling
dynamicclocks just enables and disables the bits in the approriate registers.
It doesn't save and restore those regs to how the bios set them up. if it is
causing problems you'll want to start up with a freshly initialized (by the
bios) chip.