Public bug reported: PROBLEM
Recent libgl-mesa 18.0.5-0ubuntu0~16.04.1 graphics update prevents drop down list menu appearing in apps like firefox three line/bar menu icon. After recently applying updates, left clicking on some application menus and icons no longer displays a drop-down menu list. For example in Firefox when I left-click on the **three line/bar** icon in the upper right-hand corner, the normal drop down list menu does not display. Also the menu drop down doesn't display in keypassx. Further xchat-gnome doesn't even display a window. Another anomaly is that my KDE bottom menu bar changed to a dark theme. BACKGROUND I'm using Kubuntu 16.04 on an Intel i7-7700k computer with Intel HD Graphics. I have KDE **System Settings -> Compositor** enabled with: Scale method : Accurate Rendering backend: OpenGL 3.1 OpenGL interface: GLX Tearing prevention ("vsync"): Full screen repaints Keep window thumbnails: Only for Shown Windows INVESTIGATION After several hours of searching the Internet I found one other case of a similar problem. Firefox's Menu Bar won't open https://support.mozilla.org/en-US/questions/1194760 The reported solution was to rollback the graphics drivers. Because the issues cropped up after applying updates on July 6, 2018, I tracked down the list of recent updates with: grep -A 2 'Start-Date: 2018-07-06' /var/log/apt/history.log | tail -1 >packages.txt After some editing to place packages on separate lines, and identifying the grahics libraries, I arrived at the following list: ------------------------------ libgles2-mesa:amd64 (17.2.8-0ubuntu0~16.04.1 18.0.5-0ubuntu0~16.04.1) 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) 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) libgbm1:amd64 (17.2.8-0ubuntu0~16.04.1 18.0.5-0ubuntu0~16.04.1) libwayland-egl1-mesa:amd64 (17.2.8-0ubuntu0~16.04.1 18.0.5-0ubuntu0~16.04.1) 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) mesa-vdpau-drivers:amd64 (17.2.8-0ubuntu0~16.04.1 18.0.5-0ubuntu0~16.04.1) ------------------------------ To revert to the prior graphic drivers I tracked down the '.deb' packages for each of the above packages and downloaded the '17.2.8-0ubuntu0~16.04.1' version. For example: https://launchpad.net/ubuntu/xenial/amd64/libxatracker2/17.2.8-0ubuntu0~16.04.1 I also discovered that some of these depended on libllvm5.0_5.0-3~16.04.1 so I also downloaded the following files: libllvm5.0_5.0-3~16.04.1_amd64.deb libllvm5.0_5.0-3~16.04.1_i386.deb WORKAROUND (ROLLBACK TO PRIOR VERSION) Install older versions with: sudo dpkg -i \ libllvm5.0_5.0-3~16.04.1_amd64.deb \ libllvm5.0_5.0-3~16.04.1_i386.deb \ libegl1-mesa_17.2.8-0ubuntu0~16.04.1_amd64.deb \ libgbm1_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 \ libgl1-mesa-glx_17.2.8-0ubuntu0~16.04.1_amd64.deb \ libgl1-mesa-glx_17.2.8-0ubuntu0~16.04.1_i386.deb \ libglapi-mesa_17.2.8-0ubuntu0~16.04.1_amd64.deb \ libglapi-mesa_17.2.8-0ubuntu0~16.04.1_i386.deb \ libgles2-mesa_17.2.8-0ubuntu0~16.04.1_amd64.deb \ libosmesa6_17.2.8-0ubuntu0~16.04.1_amd64.deb \ libosmesa6_17.2.8-0ubuntu0~16.04.1_i386.deb \ libwayland-egl1-mesa_17.2.8-0ubuntu0~16.04.1_amd64.deb \ libxatracker2_17.2.8-0ubuntu0~16.04.1_amd64.deb \ mesa-vdpau-drivers_17.2.8-0ubuntu0~16.04.1_amd64.deb After rebooting, all the issues disappeared. For example I was once again able to left-click on the Firefox **three line/bar** menu and view the drop down list menu. Also the KDE bottom menu bar retured to the normal "breeze" light grey colour. ** Affects: mesa (Ubuntu) Importance: Undecided Status: New -- 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/1780664 Title: Recent libgl-mesa graphics update prevents drop down list menu appearing in apps like firefox three line/bar menu icon To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1780664/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp