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This bug did not have a package associated with it, which is important for ensuring that it gets looked at by the proper developers. You can learn more about finding the right package at https://wiki.ubuntu.com/Bugs/FindRightPackage. I have classified this bug as a bug in gnome-shell although Ubuntu developers may well decide otherwise. If this is still an issue then please execute the following command only once, as it will automatically gather debugging information, in a terminal: apport-collect 1877428 When reporting bugs in the future please use apport by using 'ubuntu- bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs. ** Tags added: focal ** Package changed: ubuntu => gnome-shell (Ubuntu) ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1877428 Title: Graphical glitches Status in gnome-shell package in Ubuntu: Incomplete Bug description: On a newly upgraded Ubuntu 20.04 on a Lenovo Yoga 370, the Gnome background screen is constellated with graphical glitches. Icons on the taskbar are affected too but not the inner part of the windows. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1877428/+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