Re: VGAfb scrolling and screenspace

Martin Mares (
Mon, 27 Jul 1998 17:24:37 +0200

> It seems that modes other than 80x25 using VGAfb are a bit screwy. I haven't
> tried alternate modes without framebuffer devices. The problem is, in 80x34
> mode I only get to use 30 lines; the last 5 lines contain kernel debugging info
> (it scrolled down right when the system booted) but hasn't been erased because I
> can't scroll down to it (it scrols at the 30th line)
> Plus, 132x43 mode was rather interesting--when the screen started to scroll, the
> top of the screen shifted down a bit to the middle of the display, with a little
> chunk of unused screenspace (similar to the 80x34 problem) and that top part of
> the display, now at the middle, when it scrolls new characters come from the top
> section of the display

Please don't use vgafb. Use vgacon instead.

Have a nice fortnight

Martin `MJ' Mares   <>
Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth
"My computer isn't that nervous, it's just a bit ANSI."

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