On Thu, 8 Mar 2001, Ted Gervais wrote:
>Wondering about Xconfig and ones choices about making selections under 8 , 16
>,24 bits. What will these selections give you? Lets say you selection a
>screen setting of 1024 under 8, 16 and 24 bits. What does that mean? And
>more important - how do you chose between having a screen setting run at 8,
>16 or 24 bits?
The number of bits indicates the number of available colors.
8 bit is 2^8 colors == 256 colors
16bit is 2^16 == 65536 colors
24bit is 2^24 == 16.7 million colors
32bit is the same as 24bit color only daster as it uses 32bits to
store 24bits of data in video memory.
>I know using Alt-Ctrl and -/+ (on keypad) will allow you to move between
>various screen resolutions, 1024, 860, etc.. But is this also possible with
>the various screen 'bits' as well??
Yes, you have to quit X to change color depth though. Edit your
/etc/X11/XF86Config-4 file and change the section:
Section "Screen"
Identifier "Screen0"
Device "ATI|Rage 128 PF"
Monitor "My Monitor"
DefaultDepth 16
Subsection "Display"
Depth 16
Modes "1024x768"
EndSubSection
EndSection
Change DefaultDepth to be the depth you want. Make sure that the
depth is configured in the Display subsection as well.
Or, if various modes are set up already you can start X up with:
startx -- -bpp 24
or similar..
--
Mike A. Harris Shipping/mailing address:
OS Systems Engineer 190 Pittsburgh Ave., Sault Ste. Marie,
Red Hat Inc. Ontario, Canada, P6C 5B3
http://www.redhat.com Phone: (705)949-2136
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