[SOLVED] how to change resolution of usplash

[gnomek]

Resolution is very small, so the Kubuntu wheel looks very big. Only after login the resolution looks normal, I mean is adjusted to my monitor resolution 1440x900.

[jovin]

You mean Plymouth.

http://byobu.info/wiki/Changing_Plym...tion_in_Ubuntu

Install v86d

First of all, run the following command in a terminal to install the v86d package.

sudo apt-get install v86d

Set the resolution for GRUB2 and Plymouth

Now you need to edit the resolutions in the GRUB2 files, so run gksu gedit /etc/default/grub and look for the line,

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

and replace it with (this will set the resolution for Plymouth),

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset video=uvesafb:mode_option=1280x1024-24,mtrr=3,scroll=ywrap"

Then look for,

#GRUB_GFXMODE=640x480

and replace it with (this will set the resolution for the GRUB2 menu; the resolution you set here may differ from the resolution set in GRUB_CMDLINE_LINUX_DEFAULT),

GRUB_GFXMODE=1280x1024

Note that you need to remove the # from the beginning of the GRUB_GFXMODE line else it will be commented out. Also, I repeat, you may use any resolution you wish to use in place of 1280x1024 as long as your monitor supports it. Sometimes you need to set a lower resolution for GRUB_GFXMODE because GRUB may not support the same resolutions as Plymouth (e.g. 1366x768 may work for Plymouth, but may not in GRUB2. In this case, set GRUB_GFXMODE to 1024x768 instead). Save the file and close the text editor.

Note: The GRUB_GFXMODE option configures the resolution of the GRUB 2 menu. Not all resolutions are supported for GRUB itself. If unsure of what resolutions are available to GRUB 2 they can be displayed by typing vbeinfo in the GRUB 2 command line. The command line is accessed by typing "c" when the main GRUB 2 menu screen is displayed.[2]

Hope that helps.

[gnomek]

Edit:
This worked for me.
Step 1

sudo nano /etc/default/grub
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="vga=792 quiet splash nomodeset video=uvesafb:mode_option=1440x900-24,mtrr=3,scroll=ywrap"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
GRUB_GFXMODE=1440x900
GRUB_GFXPAYLOAD_LINUX=1440x900

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

Step 2

sudo nano /etc/initramfs-tools/modules
# add:
uvesafb mode_option=1440x900-24 mtrr=3 scroll=ywrap

Step 3, 4, 5

echo FRAMEBUFFER=y | sudo tee /etc/initramfs-tools/conf.d/splash
sudo update-grub2
sudo update-initramfs -u

reboot!

I use nano editor because it works in terminal, so you don't need graphical editor. It is good be familiar with non-graphical editor.
Remember to save changes: right keyboard site Ctrl+O, and you exit nano with Ctrl+X.

vga=792 is 1024x768@24bit
This is GRUB VGA Mode
http://pierre.baudu.in/other/grub.vga.modes.html
Maybe it is not necessary to write vga=792. I don't know. I don't want to chceck it again. So you may first check without it.