Issue solved. Solution: Open Unity-plugin in CCSM. Switch from no blur to active blur: the dash is clear - no broken graphics. Move color from transparent up to 50 percent: all symbols in dash and launcher appear.
@ Khursid, many thanks for your assistance and hints. ** Attachment added: "Unity-plugin-activ-blur-background-color" https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1750583/+attachment/5103509/+files/Unity-plugin-activ-blur-background-color ** No longer affects: mesa (Ubuntu) ** No longer affects: mesa-lts-xenial (Ubuntu) ** No longer affects: xserver-xorg-video-ati-hwe-16.04 (Ubuntu) ** Changed in: unity (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1750583 Title: Broken panel and launcher - all black To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1750583/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs