Well seems the solution si to specify in the lilo.conf the resolution of the framebuffer, wich has to be the same that the X, I mean, yo should put in lilo.conf this line:
Where 775 depens on the resolution of the X
Code:
Colors 640x480 800x600 1024x768 1280x1024 1600x1200
256 769 771 773 775 796
32.768 784 787 790 793 797
65.536 785 788 791 794 798
16.8M 786 789 792 795 799