![]() Xrandr is a console command to operate / change screen resolution, but on restart it gets lost.Ģ. It will show us the active graphic modes. From the Terminal you type the following command: We can see it graphically by typing the following in a terminal: glxgears Now, let's get to workġ. If we see Direct rendering: yes, it is correct. ![]() Now we test how the graphical acceleration is going: glxinfo | grep -i render We update the system repositories and the system itself. We add the repository of free drivers for Intel, ATI and Nvidia: sudo add-apt-repository ppa: xorg-edgers / ppa We install the mesa-utils package for Intel, Ati and Nvidia cards: sudo apt-get install table-utils We go to System Configuration> Monitors and we will see how in the resolution screen there are very few to select, in addition to not being useful: ![]() We go to the System Configuration and select Software Sources, Additional Drivers tab, it must be empty because proprietary drivers are not being used.
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