Question

7

Why does my screen blank out for the duration of the Grub boot menu?

rated 0 times [ 7] [ 0] / answers: 1 / hits: 6807 / 2 Years ago, wed, january 12, 2022, 8:47:05

Upon booting, when I should see the GRUB menu, my monitor simply says: "No optimum mode. Recommended mode: 1600*1200". If I wait for a short while, Ubuntu starts to boot and it reaches the desktop.

So I guess there is no video signal during that time, there's the grub menu but I cant see it and after the wait time everything is fine. I have the same problem when I log out for a short moment, before the log in screen is reached. and this also happens when i shut down ubuntu.

The VGA is an onboard NVIDIA GeForce 7025.

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ainlyyor

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1 Year ago

answered 2 Years ago emuralm · Accepted Answer

The graphical Grub menu does not appear to be compatible with your video card. So let's switch to a text menu instead.

Open the terminal with Ctrl+Alt+T

Paste the below, and enter your password when asked:

sudo sed -i -e 's/#GRUB_TERMINAL/GRUB_TERMINAL/g' /etc/default/grub

Then type sudo update-grub

Reboot and hopefully you get a text menu instead of the screen just blanking out.

Explanation: Here, sed simply uncomments the GRUB_TERMINAL=console line, forcing text mode