Messages in this thread | | | Date | Fri, 14 Mar 2003 11:14:53 +0100 (MET) | From | Geert Uytterhoeven <> | Subject | Re: VESA FBconsole driver? |
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On Thu, 13 Mar 2003, Kendall Bennett wrote: > Petr Vandrovec <vandrove@vc.cvut.cz> wrote: > > Why you need it? To run some parts of VGA BIOS? Why you cannot run > > them from userspace task? I think that it is much easier, > > especially now when initramfs is here. > > The reason why it would nice is so that the VESA FBconsole driver (and in > fact all the FBconsole drivers that use the real mode BIOS to set an > initial display mode) can restore that mode correctly when an application > exists and restores the console. Right now it is up to the application > program to restore the console, as the kernel has absolutely no way to do > it. If that program has not way to restore it (old SVGALib code for > instance) or the application crashes, you are stuck with a black screen > if you are using a framebuffer console. If the kernel knew how to call > the BIOS to restore the mode, this problem could be completely eliminated > and services could be provided to properly restore the system state when > console graphics programs crash (or the X server for that matter if it > crashes and does not properly clean up).
Assumed the BIOS can recover from whatever the application has done to the graphics chipset...
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
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