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Old 11-30-2008, 10:13 PM   #1
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setting framebuffer (vga mode) after booting

At boot time, in grub configuration file (/boot/grub/menu.lst), if I place "vga=788" inside "root /boot/vmlinuz..", then my Slax starts in 800x600 instead of 640x480. But if I start in 640x480, can I change the vga mode after Slax has started? (i.e. after I see the login prompt).

Old 12-01-2008, 02:13 AM   #2
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Not sure what you mean - are you starting up in text mode?

Once you have logged in in textmode, you can usually do

# startx
I. e. type startx in the terminal to get into graphical mode.

Otherwise, there should be a file called /etc/inittab where you can set the system to boot directly into graphical mode:

# inittab       This file describes how the INIT process should set up
#               the system in a certain run-level.
# Author:       Miquel van Smoorenburg, <>
#               Modified for RHS Linux by Marc Ewing and Donnie Barnes

# Default runlevel. The runlevels used by RHS are:
#   0 - halt (Do NOT set initdefault to this)
#   1 - Single user mode
#   2 - Multiuser, without NFS (The same as 3, if you do not have networking)
#   3 - Full multiuser mode
#   4 - unused
#   5 - X11
#   6 - reboot (Do NOT set initdefault to this)

# System initialization.

l0:0:wait:/etc/rc.d/rc 0
l1:1:wait:/etc/rc.d/rc 1
l2:2:wait:/etc/rc.d/rc 2
l3:3:wait:/etc/rc.d/rc 3
l4:4:wait:/etc/rc.d/rc 4
l5:5:wait:/etc/rc.d/rc 5
l6:6:wait:/etc/rc.d/rc 6

ca::ctrlaltdel:/sbin/shutdown -t3 -r now

# When our UPS tells us power has failed, assume we have a few minutes
# of power left.  Schedule a shutdown for 2 minutes from now.
# This does, of course, assume you have powerd installed and your
# UPS connected and working correctly.  
pf::powerfail:/sbin/shutdown -f -h +2 "Power Failure; System Shutting Down"

# If power was restored before the shutdown kicked in, cancel it.
pr:12345:powerokwait:/sbin/shutdown -c "Power Restored; Shutdown Cancelled"

# Run gettys in standard runlevels
1:2345:respawn:/sbin/mingetty tty1
2:2345:respawn:/sbin/mingetty tty2
3:2345:respawn:/sbin/mingetty tty3
4:2345:respawn:/sbin/mingetty tty4
5:2345:respawn:/sbin/mingetty tty5
6:2345:respawn:/sbin/mingetty tty6

# Run xdm in runlevel 5
x:5:once:/etc/X11/prefdm -nodaemon
Change the line

which is what you SHOULD have if you are starting up in text mode, to

i. e. change the 3 to a 5 - if you save the config file and reboot, the system should come up directly in XWindows on start.

I hope I understood what you meant... most distros these days if installed default -automatically- install to runlevel 5, i. e. start XWindows on boot?

Note that your message is ambiguous - if you literally meant the VGA Framebuffer function (i. e. you ARE in graphical mode on boot, but NOT in X, on your terminal) - that usually can also be configured as a kernel compile-time option?

Last edited by rylan76; 12-01-2008 at 02:16 AM.
Old 12-04-2008, 05:41 PM   #3
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Oh sorry, indeed it was ambigous. I start Slax in text mode (I do not use X Windows). I think starting with VGA=normal, it will use 640x480, and that makes 80x40 characters. Starting with VGA=791 makes it use 1024x768 so it will fit 132x64 characters. It just fits more on your screen (for example when you use MC that can be very usefull)


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