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After I tried to install Windows on my 500 GB HDD, where Ubuntu is already installed, the installation rebooted at 1%. Then I got a black screen: no grub, no nothing.

I had to use the live CD to be able ask for help. I was told to use Boot-Repair. I did and recovered grub, but the screen resolution is set too low (1024x768 max), I cannot change it.

The system is recognized as a laptop and my monitor is an LG E1941S. I do not have an dedicated graphics card (Nvidia, AMD, etc).

edwin
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user299596- Verónica B.
  • 167

1 Answers1

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To test if setting screen resolution works, you can edit the grub menu entry similar to a nomodeset entry.

Press e for edit, scroll to linux line and add after or replace quiet splash with your correct video X by Y setting like:

video=1366x768-24@60

If that works or whatever setting does work you can add it to grub to make it permanent. Each reboot and edit of grub as you boot is a one time change.

gksudo gedit /etc/default/grub
sudo update-grub

Add it to the same line as the quiet splash setting you currently have:

GRUB_CMD_LINUX_DEFAULT="quiet splash"

Should be this?

GRUB_CMD_LINUX_DEFAULT="quiet splash video=1366x768-24@60"

oldfred
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