[Linux-fbdev-users] Sony Vaio laptop with i815 video card

[Parson L. (NHQ-AC) <ParsonLA@CSC-SCC.GC.CA>]

I have a Sony VAIO laptop FX-150 with an i815 video.  For many months I have
use fbset with the following arguments "fbset -g 800 600 800 600 8".  This
enlarged my screen to about 80% used instead of like 50%.  I was happy with
this.  This worked very well with SlackWare 7.1 with kernel 2.4.17 at the
end.

I recently installed SlackWare 8.0 and kept my .config file from
SlackWare7.1 kernel 2.4.17.  After installing Slack8 I downloaded the 2.4.17
kernel and applied my old .config to it.  Compiled kernel and installed.  I
then again installed fbset-2.1 so I can obtain more screen then a little
square of display in the center of my screen.

I proceeded with the same command as before. "fbset -g 800 600 800 600 8"
but then received "ioctl FBIOPUT_VSCREENINFO: Invalid argument".  I then
noticed that I was in 4bpp.  Therefore I tried "fbset -g 800 600 800 600 4"
and then this worked.  

Why can I not go back to 8bpp?  I am using the same kernel config as before.
The only change was from Slack7 to Slack8.
Is there something in Slack8 that will not allow me to change bpp's?

Thanks,

Luc