I haven't seen such behavior, except for the probably obsolete https://bugzilla.gnome.org/show_bug.cgi?id=730763. Mind you, I was using VTE and gnome-terminal from git, the rest from Yakkety.
Does this lag of 3-4 seconds appear suddenly at one point, or does the performance constantly degrade over time? One more thing I can think of is rewrap on resize, it's a slow operation. If you have an enormous scrollback buffer (maybe a million lines or more), resizing could be this slow. However, if I understand you correctly, you also see delays when you don't resize but normally use a terminal (execute commands and such). Am I right? If so, we can exclude this possibility. ** Bug watch added: GNOME Bug Tracker #730763 https://bugzilla.gnome.org/show_bug.cgi?id=730763 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-terminal in Ubuntu. https://bugs.launchpad.net/bugs/1681336 Title: terminal shows window contents video with lag and glitches Status in gnome-terminal package in Ubuntu: New Bug description: After few hours of normal work, terminal window stops showing it's contents, not always entirely, but with significant lag, 3-4 seconds. Contents appear in jumps, often contents do not show at all. Resizing window makes it show it's contents eventually, switching tabs too. Switching tabs sometimes produces an effect in which half of tab is refreshed, other half is not. Different window of gnome terminal works Ok. Expected behavior: terminal window shows i'ts contents in timely manner and does not blink. Description: Ubuntu 16.10 Release: 16.10 $ apt-cache policy gnome-terminal gnome-terminal: Installed: 3.20.2-1ubuntu5 Candidate: 3.20.2-1ubuntu5 Version table: *** 3.20.2-1ubuntu5 500 500 http://ru.archive.ubuntu.com/ubuntu yakkety/main amd64 Packages 100 /var/lib/dpkg/status Reproduces on Lenovo Thinkpad laptop with intel video. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: gnome-terminal 3.20.2-1ubuntu5 ProcVersionSignature: Ubuntu 4.8.0-41.44-generic 4.8.17 Uname: Linux 4.8.0-41-generic x86_64 ApportVersion: 2.20.3-0ubuntu8.2 Architecture: amd64 CurrentDesktop: Unity Date: Mon Apr 10 10:35:01 2017 ExecutablePath: /usr/lib/gnome-terminal/gnome-terminal-server InstallationDate: Installed on 2017-03-01 (39 days ago) InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2) SourcePackage: gnome-terminal UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-terminal/+bug/1681336/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
