Yes, for all GPU-accelerated window manager such as mutter, metacity- composite, marco-composite, these is no screen flashing. However, disable GPU-accelerate will make it sharply flash, typically using metacity-nocomposite and marco-nocomposite.
However, even if using to metacity-nocomposite/marco-nocomposite to disable GPU-accelerate, all gtk2.0-based textview such as leafpad is still good and doesn't flash at all, but all gtk3.0 textview will heavily flash that makes eyes unconfortable. Especially for black-background + white-foreground textview => maximum the text editor => fill full text in editor while ensuring no boundary overflow to prevent producing the side scrollbar => dynamic selecting multi-line text by mouse => extrodinary high-contrast flashing nearly makes eyes blind. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to gtk+3.0 in Ubuntu. https://bugs.launchpad.net/bugs/1751417 Title: gtk3.22 makes gedit & pluma screen flash for short text only Status in gtk+3.0 package in Ubuntu: New Bug description: Environment: Ubuntu 18.04 development branch; GTK-3 version: 3.22; For almost all gtk3-based text editor, such as gedit, pluma, mousepad. There is textview flashing issue when the textview doesn't have its side-scrollbar. Typically, short text in textview can make this condition satisified. 1) Editor textview flashing problem only happens in OS physical hosts, and doesn't happen when editors run inside Virtualbox. 2) Editor textview flashing problem doesn't happen in Ubuntu 16.04 which is of lower gtk3 version; 3) If text document is long to generate either side of scrollbar for the editor textview, then the textview is no longer flashing. More to see: https://github.com/mate-desktop/pluma/issues/282 Still, I just ensure that it is not a pluma issue but happens in all gtk3-based text editor including gedit. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: libgtk-3-0 3.22.28-1ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3 Uname: Linux 4.15.0-10-generic x86_64 ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 CurrentDesktop: MATE Date: Sat Feb 24 14:32:35 2018 SourcePackage: gtk+3.0 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/1751417/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
