Ubuntu – My Ubuntu screen is in full zoom and it is all white screen

white-screenzooming

I went to settings in my laptop which is running on Ubuntu and went to universal access. Then I clicked in zoom option and my laptop screen went full white.

What can I do now to fix this?

Best Answer

from the comments, it is observed that you have changed these two

  1. Bightness to High
  2. Contrast to High

enter image description here

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Assuming you are with GNOME

these two changes can be controlled with command line,

the default values are,

for brightness:

org.gnome.desktop.a11y.magnifier brightness-red 0.0
org.gnome.desktop.a11y.magnifier brightness-green 0.0
org.gnome.desktop.a11y.magnifier brightness-blue 0.0

for contrast:

org.gnome.desktop.a11y.magnifier contrast-red 0.0
org.gnome.desktop.a11y.magnifier contrast-green 0.0
org.gnome.desktop.a11y.magnifier contrast-blue 0.0

So, logon to any console by pressing Ctrl+Alt+F2 or F3 or F4 etc..

then run the below commands to reset the values to default and then reboot.

gsettings set org.gnome.desktop.a11y.magnifier brightness-green 0
gsettings set org.gnome.desktop.a11y.magnifier brightness-blue 0
gsettings set org.gnome.desktop.a11y.magnifier brightness-red 0
gsettings set org.gnome.desktop.a11y.magnifier contrast-green 0
gsettings set org.gnome.desktop.a11y.magnifier contrast-blue 0
gsettings set org.gnome.desktop.a11y.magnifier contrast-red 0

enter image description here

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