IBM x335 and 5.3

[Thomas Vincent]

Hi,
I have two IBM x335 running 5.2.1 I am attempting to upgrade to 5.3.
After upgrading to 5.3 and rebooting the machine it no longer outputs
via serial properly. Now, in the beginning of the boot it outputs to
KVM, then the middle part to serial, then the last part to KVM. Where
it gives me a login prompt where I can't type anything via serial or
KVM? Any ideas?

Cheers,
Tom