xrandr: Failed to get size of gamma for output default

Support Driver and Hardware
1

Hello there! I need a help.

I tried resize screen using xrandr, but he printed to me mistake and i can’t resize screen.

“xrandr: Failed to get size of gamma for output default”

I’m using a last version of Parrot Security.

2

Hi @outsider001nf

Try

sudo pluma /etc/default/grub

Find the line that says

GRUB_CMDLINE_LINUX_DEFAULT=“quiet splash nomodeset”

change it to

GRUB_CMDLINE_LINUX_DEFAULT=“quiet splash”

and save the file.

Do a

sudo update-grub

and reboot.

3

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