Framebuffer or standard VGA ?

ollie lho ollie at sis.com.tw
Mon Sep 9 21:03:01 CEST 2002


On Mon, 2002-09-09 at 23:50, Antony Stone wrote:
> Hi.
> 
> I'm using LinuxBios on an SiS630 motherboard (PC-Chips M810L).
> 
> Is is essential to use the framebuffer device for video output under 
> LinuxBios, or can I boot it into a 'standard VGA' mode ?
> 
> I tried changing HAVE_FRAMEBUFFER=1 to =0 and also removing it entirely from 
> my config file, but I just got no video output at all - the serial port told 
> me everything else was starting up okay though.
> 

Do you want VGA frame buffer or not ?? If you want framebuffer for SiS 
630, you have to enable SiSFB Lite in the SiS LinuxBIOS patch.

> If it is essential to use the framebuffer, is there any way to change the 
> refresh rate, because I'm using an old monitor which loses the top & bottom 
> of the screen (it doesn't have a vertical size control :-(   ) when I boot 
> under LinuxBios.
> 

SiSFB Lite accept standard kernel parameter for video mode. Read 
linux/Documentation/fb/modedb for more detail. 

Ollie





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