lkml.org 
[lkml]   [1996]   [Oct]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: scrollback
Date
> The recent traffic said that the screen gets scrolled by adjusting the
> VGA's 'start of display memory' register, and that the kernel has no
> clue as to what's scrollback and what's garbage.

there are a few graphics cards/chips (at least DEC TGA, and I think monochrome
cards like Hercules too) where the kernel (card?) doesn't support
text scrolling yet. at least for them having a generic software method
to scroll text VCs would be a *big* benefit. having this software method,
one could define the scroll buffers as large as needed (and vice versa;).

but keep in mind that this all goes into non-paged kernel memory and
having 8 VCs with 1000 * 132 character lines is another MEGAbyte you're loosing...


Harald
--
All SCSI disks will from now on ___ _____
be required to send an email notice 0--,| /OOOOOOO\
24 hours prior to complete hardware failure! <_/ / /OOOOOOOOOOO\
\ \/OOOOOOOOOOOOOOO\
\ OOOOOOOOOOOOOOOOO|//
Harald Koenig, \/\/\/\/\/\/\/\/\/
Inst.f.Theoret.Astrophysik // / \\ \
koenig@tat.physik.uni-tuebingen.de ^^^^^ ^^^^^

\
 
 \ /
  Last update: 2005-03-22 13:38    [W:0.073 / U:1.848 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site