Re: Graphics performance under linux

[Augusto Cesar Radtke <radtke@terra.com.br>]

Hashem Masoud wrote:

> Hi...
> 
> Just another question..
> 
> If the X server runs in user mode, how is it able to
> change the video mode from text to bitmap mode,
> although
> it runs in user mode and has no enough privilages to
> do
> so?
	
X only needs root privilegies a little piece of time to do a ioperm(), after this it can do any I/O to the vga devices.	
	
	Augusto	
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