I reverted to the correct behaviour by
cd /home/david/DisplayBug-Jul7-2018
sudo dpkg -i \
libgbm1_17.2.8-0ubuntu0~16.04.1_amd64.deb \
libwayland-egl1-mesa_17.2.8-0ubuntu0~16.04.1_amd64.deb \
libegl1-mesa_17.2.8-0ubuntu0~16.04.1_amd64.deb \
libgl1-mesa-dri_17.2.8-0ubuntu0~16.04.1_amd64.deb \
libgl1-mesa-dri_17.2.8-0ubuntu0~16.04.1_i386.deb \
mesa-vdpau-drivers_17.2.8-0ubuntu0~16.04.1_amd64.deb
sudo apt-mark hold \
libegl1-mesa \
libgbm1 \
libgl1-mesa-dri \
libwayland-egl1-mesa \
mesa-vdpau-drivers
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to mesa in Ubuntu.
https://bugs.launchpad.net/bugs/1780846
Title:
After update 2018-07-08 menus and buttons are behaving badly
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1780846/+subscriptions
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