I dont know enough to be sure whether or not libdrm-nouveau2 is the responsible package. But I will change the package on this ticket to that, if it helps get it more attention.
** Package changed: ubuntu => libdrm (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1780846 Title: After update 2018-07-08 menus and buttons are behaving badly Status in libdrm package in Ubuntu: Confirmed Bug description: After an update to Description: Ubuntu 16.04.4 LTS Release: 16.04 Menus and buttons are behaving badly. This is a general issue, affecting most programs. Text in buttons is not always being displayed. When you mouse over an entry in a menu list the previous entry disappears e.g. the logout menu (power button icon at top right of panel) Menu items are getting red backgrounds where they were not before. Introduced by update done by update-manager on Last update Start-Date: 2018-07-08 21:25:10 Modified packages: libgles2-mesa:amd64 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) libdrm-nouveau2:amd64 (2.4.83-1~16.04.1, 2.4.91-2~16.04.1) libdrm-nouveau2:i386 (2.4.83-1~16.04.1, 2.4.91-2~16.04.1) libapt-inst2.0:amd64 (1.2.26, 1.2.27) libegl1-mesa-dev:amd64 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) apt:amd64 (1.2.26, 1.2.27) libglapi-mesa:amd64 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) libglapi-mesa:i386 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) mesa-common-dev:amd64 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) libxatracker2:amd64 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) libegl1-mesa:amd64 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) libapt-pkg5.0:amd64 (1.2.26, 1.2.27) apache2-data:amd64 (2.4.18-2ubuntu3.8, 2.4.18-2ubuntu3.9) libgbm1:amd64 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) libdrm-amdgpu1:amd64 (2.4.83-1~16.04.1, 2.4.91-2~16.04.1) libdrm-amdgpu1:i386 (2.4.83-1~16.04.1, 2.4.91-2~16.04.1) firefox-locale-en:amd64 (60.0.2+build1-0ubuntu0.16.04.1, 61.0+build3-0ubuntu0.16.04.2) libwayland-egl1-mesa:amd64 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) libdrm2:amd64 (2.4.83-1~16.04.1, 2.4.91-2~16.04.1) libdrm2:i386 (2.4.83-1~16.04.1, 2.4.91-2~16.04.1) libgl1-mesa-dev:amd64 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) apt-utils:amd64 (1.2.26, 1.2.27) libgl1-mesa-dri:amd64 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) libgl1-mesa-dri:i386 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) libosmesa6:amd64 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) libosmesa6:i386 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) libgl1-mesa-glx:amd64 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) libgl1-mesa-glx:i386 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) libdrm-intel1:amd64 (2.4.83-1~16.04.1, 2.4.91-2~16.04.1) libdrm-intel1:i386 (2.4.83-1~16.04.1, 2.4.91-2~16.04.1) apache2-bin:amd64 (2.4.18-2ubuntu3.8, 2.4.18-2ubuntu3.9) firefox:amd64 (60.0.2+build1-0ubuntu0.16.04.1, 61.0+build3-0ubuntu0.16.04.2) apt-transport-https:amd64 (1.2.26, 1.2.27) libdrm-radeon1:amd64 (2.4.83-1~16.04.1, 2.4.91-2~16.04.1) libdrm-radeon1:i386 (2.4.83-1~16.04.1, 2.4.91-2~16.04.1) mesa-vdpau-drivers:amd64 (17.2.8-0ubuntu0~16.04.1, 18.0.5-0ubuntu0~16.04.1) apache2:amd64 (2.4.18-2ubuntu3.8, 2.4.18-2ubuntu3.9) apache2-utils:amd64 (2.4.18-2ubuntu3.8, 2.4.18-2ubuntu3.9) libdrm-dev:amd64 (2.4.83-1~16.04.1, 2.4.91-2~16.04.1) libdrm-common:amd64 (2.4.83-1~16.04.1, 2.4.91-2~16.04.1) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1780846/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp