How to increase number of rows in tty

I have a laptop with Slackware 14.2 installed. The laptop screen is a rectangle recently I have attached a better monitor to the laptop and is using it now. The new monitor is bigger and has a shape of a square.

Unfortunately, when I launch the terminal (Ctrl-F2), the number of rows stays the same as it was for the old monitor, which leads to the loss of horizontals space in vim.

I tried:

Code:# tput lines
46
# tput cols
126

# stty rows 60
stty: 'standard input': Invalid argumentThe lilo.conf:

Code:# LILO configuration file
# generated by 'liloconfig'
#
# Start LILO global section
# Append any additional kernel parameters:
append=" vt.default_utf8=1"
default=Linux
boot = /dev/sda
lba32

#compact # faster, but won't work on all systems.

# Boot BMP Image.
# Bitmap in BMP format: 640x480x8
bitmap = /boot/slack.bmp
# Menu colors (foreground, background, shadow, highlighted
# foreground, highlighted background, highlighted shadow):
bmp-colors = 255,0,255,0,255,0
# Location of the option table: location x, location y, number of
# columns, lines per column (max 15), "spill" (this is how many
# entries must be in the first column before the next begins to
# be used. We don't specify it here, as there's just one column.
bmp-table = 60,6,1,16
# Timer location x, timer location y, foreground color,
# background color, shadow color.
bmp-timer = 65,27,0,255

# Standard menu.
# Or, you can comment out the bitmap menu above and
# use a boot message with the standard menu:
#message = /boot/boot_message.txt

# Wait until the timeout to boot (if commented out, boot the
# first entry immediately):
prompt
# Timeout before the first entry boots.
# This is given in tenths of a second, so 600 for every minute:
timeout = 30
# Override dangerous defaults that rewrite the partition table:
change-rules
reset
# Normal VGA console
vga = normal
# Ask for video mode at boot (time out to normal in 30s)
#vga = ask
# VESA framebuffer console @ 1024x768x64k
#vga=791
# VESA framebuffer console @ 1024x768x32k
#vga=790
# VESA framebuffer console @ 1024x768x256
#vga=773
# VESA framebuffer console @ 800x600x64k
#vga=788
# VESA framebuffer console @ 800x600x32k
#vga=787
# VESA framebuffer console @ 800x600x256
#vga=771
# VESA framebuffer console @ 640x480x64k
#vga=785
# VESA framebuffer console @ 640x480x32k
#vga=784
# VESA framebuffer console @ 640x480x256
#vga=769
# End LILO global section
# Linux bootable partition config begins
image = /boot/vmlinuz
initrd = /boot/initrd.gz
root = /dev/sda3
label = Linux
vga=normal
read-only

image = /boot/vmlinuz-huge-smp
root = /dev/sda3
label = Linux_huge
read-only

other=/dev/sda2
label=Windows
# Linux bootable partition config endsWhat should I do to increase the number of rows for the terminal emulator, so it fit the bigger monitor?