Fixing Bad Plymouth Resolution

From Knowledge76

Overview

For some newer System76 computers using Ubuntu 10.04 LTS, users may notice problems with Ubuntu's new Boot Screen program called Plymouth. In particular, the resolution of the boot screen may be very low, and this may cause it to look bad. The following fix is fairly invasive, but should fix any problems you are having with your boot screen.

Process

Press Alt-F2 to open the Run Command Dialog and enter the following:

gksudo gedit /etc/default/grub

Then click on "Run". You should get a text editor window. At the end of the file, enter the following:

GRUB_GFXMODE=1024x768
GRUB_GFXPAYLOAD_LINUX=1024x768

Now, save and close the file and open a terminal (Applications > Accessories > Terminal). Enter the following command:

sudo update-grub

And press Enter. Wait for the command to finish running, then close the terminal and reboot.

Notes

On some systems this may cause Green Artifacts around the Ubuntu Logo. This is a side effect of using plymouth for boot, and is hard to fix. If you really want them gone, see Fixing Green Artifacts