I can confirm the bug, exact same behavior here. Upgraded from ubuntu 19.04 and same flickering effect.
* I open the Tweak tool window * I try to hover one of the left menu's items -> it flickers, I can not manage to click on a menu item sucessfully * If I resize the window (I have to make it larger so that the menu displays larger), then the menu works as expected and the flickering effect disappears - I have to do it everytime I launch the app, though. -- 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/1850103 Title: gnome-tweak-tool window keeps flickering on cursor hovering [Intel Penryn: Core 2 T6600] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-tweaks/+bug/1850103/+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