Convert video mode from 32 to 24 using text login in CMD (no gui) ? HELP !!!

jalalmn · 03-19-2005, 02:06 AM

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harken · 03-19-2005, 03:09 AM

Edit the bootloader's (GrUB or LiLO) config file and append to the 'kernel' line an entry like:'vga=NNN', where NNN is the mode which specifies the resolution/nr.colors. The available modes are:
| 640x480 800x600 1024x768 1280x1024
----+-------------------------------------
256 | 0x301 0x303 0x305 0x307
32k | 0x310 0x313 0x316 0x319
64k | 0x311 0x314 0x317 0x31A
16M | 0x312 0x315 0x318 0x31B
These are hex values which should be converted into decimal ones (can be easily done using a calculator). For example, 1024x768/64000 colors requires a 'vga=791' entry; 800x600/32000 is 'vga=787'.
See if that works.

Bruce Hill · 03-19-2005, 03:28 AM

I believe you are talking about not being able to load the X server.
In that case, you need to edit a different file. It would be either
/etc/X11/xorg.conf
or
/etc/X11/xf86Config
or something like that. You can probably even run
xf86config
to edit it.

Basically, this is where you should make the changes:

Code:

pico /etc/X11/xorg.conf

<snip, snip>
# **********************************************************************
# Screen sections
# **********************************************************************

# Any number of screen sections may be present.  Each describes
# the configuration of a single screen.  A single specific screen section
# may be specified from the X server command line with the "-screen"
# option.
Section "Screen" 
    Identifier  "Screen 1"
    Device      "VESA Framebuffer"
    Monitor     "PHL0813"

# If your card can handle it, a higher default color depth (like 24 or 32)
# is highly recommended.

#   DefaultDepth 8
#   DefaultDepth 16
   DefaultDepth 24   
#   DefaultDepth 32

# "1024x768" is also a conservative usable default resolution.  If you
# have a better monitor, feel free to try resolutions such as
# "1152x864", "1280x1024", "1600x1200", and "1800x1400" (or whatever your
# card/monitor can produce)

    Subsection "Display"
        Depth       8
        Modes "1024x768" "800x600" "640x480"
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes "1024x768" "800x600" "640x480"
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes "1024x768" "800x600" "640x480"
    EndSubsection
    Subsection "Display"
        Depth       32
        Modes "1024x768" "800x600" "640x480"
    EndSubsection
    
EndSection

This Linux Tutorial here at LQ should help...

harken · 03-19-2005, 03:32 AM

Sorry, my mistake, bad reader. I thought you were talking about bootup text mode. Ignore my previous post.

jalalmn · 03-19-2005, 04:20 AM

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Bruce Hill · 03-19-2005, 04:36 AM

Quote:

Originally posted by jalalmn
ok i print this page
i am going to try it now
i think using xfree86 can solve the problem, how to load it ?

pelase tell me every step

thanks

http://www.xfree86.org/sos/

jalalmn · 03-19-2005, 05:06 AM

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