I see many graphical artifacts in using Ubuntu 14.04 on Macbook Air 2013-mid. Doing CTRL-Super-[key] causes often a time-lag and sluttering of the graphics (bad sign of the drivers). There are also other complications of the drivers such as much loading (3-7 seconds) of some basic movements such as moving the window by the former keybinding. Loading does not affect all the time but often (about 1/7).
I tried Mark's proposed thread and its code found here about Intel graphic drivers for Ubuntu 14.04
sudo apt-get install --install-recommends linux-generic-lts-utopic xserver-xorg-lts-utopic libqt5gui5 libgles1-mesa-lts-utopic libgles2-mesa-lts-utopic libgl1-mesa-glx-lts-utopic libgl1-mesa-glx-lts-utopic:i386 libglapi-mesa-lts-utopic:i386 libegl1-mesa-drivers-lts-utopic
Output: many things broke: keyboard-layout changed to Qwerty, gpointing-device-settings stopped working, ... I would like to understand why. Why those drivers cause such complications? Are they just temporary? Should I continue with those drivers?
I do sudo apt-get update, sudo apt-get upgrade and sudo apt-get autoremove but the problems are not resolved back to default configurations.
How can you uninstall those packages and return to the earlier state? I do not understand what the system did so I want to the earlier configuration.
How can you have better GPU drivers in Ubuntu 14.04 and/or 16.04 on Macbook?
MarkKirby's proposal in Ubuntu 14.04
sudo apt-get purge linux-generic-lts-utopic xserver-xorg-lts-utopic libqt5gui5 libgles1-mesa-lts-utopic libgles2-mesa-lts-utopic libgl1-mesa-glx-lts-utopic libgl1-mesa-glx-lts-utopic:i386 libglapi-mesa-lts-utopic:i386 libegl1-mesa-drivers-lts-utopic
Attempt in Ubuntu 16.04 where I did not manage to get anything else work
sudo apt-get purge linux-generic-lts-utopic
His proposal about 15.10 drivers in 16.04 described here.
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