This issue (which did not occur with a fresh install of 16.04) appears to be related to the contents of file: /usr/share/themes/Ambiance/gtk-2.0/gtkrc
At line 346 (at present) there is the following: style "menu" = "dark" { Changing it to: style "menu" { ... resolves this particular issue, however I'm not sure what side- effects that would have. In the original release the line was like that in the first place, so it would have been changed for a reason. Screenshots of "before" and "after" that change can be seen here: https://askubuntu.com/a/1014016/425017 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1750973 Title: Program sub menus dark gray on black, thus illegible Status in xorg package in Ubuntu: Confirmed Bug description: When using a program, for example Libre Writer, when I click on file, open, then in the Open menu box I have the opportunity to change the file type from "All files" to a specific file type, when I click on "All files" the selection list appears. The font color for the different file types is a dark grey on a black background making the list items illegible. As I move the cursor, the font color and background change to "normal" black on a white background but only for the item that the cursor is hovering over at that moment. This makes the rest of the list impossible to read and moving the cursor slowly down the list, pausing to read each item, is a very cumbersome way to get things done. This doesn't just happen on Libre Writer but also Inkscape, Geeqie, and a variety of other programs and their sub menus. The only program I could find where this didn't happen was Firefox (58.02). Furthermore this happens on 3 different machines, each with a different processor, different graphics card and where the machine has multiple monitors, it happens on all monitors. All machines are running 16.04, one with the latest updates, the others slightly behind on updates. If I go to Settings-Appearance- Theme and change the theme from Ambiance to anything else, the sub menus become legible again. Ambiance is the default theme. If I switch the Theme back to Ambiance the problem resumes. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-112.135-generic 4.4.98 Uname: Linux 4.4.0-112-generic x86_64 NonfreeKernelModules: talpa_vfshook talpa_pedconnector talpa_pedevice talpa_vcdevice talpa_core talpa_linux talpa_syscallhook .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2.15 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Wed Feb 21 20:57:30 2018 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu DkmsStatus: sysdig, 0.20.0, 4.4.0-112-generic, x86_64: installed ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: NVIDIA Corporation GK104 [GeForce GTX 770] [10de:1184] (rev a1) (prog-if 00 [VGA controller]) Subsystem: NVIDIA Corporation GK104 [GeForce GTX 770] [10de:1033] InstallationDate: Installed on 2014-04-20 (1404 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcEnviron: LANGUAGE=en_US PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-112-generic root=UUID=8f4996c0-c2f5-449f-a35c-47f301f66803 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/12/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P1.70 dmi.board.name: 970 Extreme3 dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.70:bd10/12/2012:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rn970Extreme3:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. version.compiz: compiz 1:0.9.12.3+16.04.20171116-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.83-1~16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.8-0ubuntu0~16.04.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.8-0ubuntu0~16.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-0ubuntu0.7 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Wed Feb 21 19:32:42 2018 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Power Button KEYBOARD, id 7 input PixArt USB Optical Mouse MOUSE, id 8 input Logitech USB Keyboard KEYBOARD, id 9 input Logitech USB Keyboard KEYBOARD, id 10 xserver.errors: Failed to load module "nvidia" (module does not exist, 0) Failed to load module "nvidia" (module does not exist, 0) xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.18.4-0ubuntu0.7 xserver.video_driver: nouveau To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1750973/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp