At all 4 corners of my screen there are rounded corners, but I want to use my screen normally and use all pixels I have. Is there any way to configure this?
This was a design decision made by the developers for Freya. There are some settings for Gala (the window manager in elementary OS) that control the corner masking. You can install dconf-editor (
sudo apt-get install dconf-editor) to change the settings via a GUI, or use the built-in gsettings command from a terminal. You need to set the enable property to false in the org.pantheon.desktop.gala.mask-corners schema. The gsettings command for this is:
gsettings set org.pantheon.desktop.gala.mask-corners enable false
You can later reset to default with:
gsettings reset org.pantheon.desktop.gala.mask-corners enable