Public bug reported: I have noticed this issue with pcmanfm-qt only so far. All was working fine when I upgraded from 18.04 to 20.04 about 2 weeks back.
About 3 days back I ran: apt-get dist-upgrade And since then I've noticed this issue. Let me know if I should downgrade and hold back any packages for X11 etc. I am not using wayland mode, only pure Xorg. If I take a screenshot it shows perfect display even though the actual screen is as per the video I've attached ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: pcmanfm-qt 0.14.1-0ubuntu3 ProcVersionSignature: Ubuntu 5.14.0-1020.22-oem 5.14.20 Uname: Linux 5.14.0-1020-oem x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu27.21 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: LXQt Date: Wed Feb 16 16:09:39 2022 InstallationDate: Installed on 2015-04-04 (2510 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) SourcePackage: pcmanfm-qt UpgradeStatus: Upgraded to focal on 2022-01-22 (24 days ago) modified.conffile..etc.default.apport: # set this to 0 to disable apport, or to 1 to enable it # you can temporarily override this with # sudo service apport start force_start=1 enabled=0 mtime.conffile..etc.default.apport: 2015-04-17T22:47:15.195638 ** Affects: pcmanfm-qt (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal third-party-packages ** Attachment added: "Video of pcmanfm mouseover dithering" https://bugs.launchpad.net/bugs/1961048/+attachment/5561352/+files/WhatsApp%20Video%202022-02-16%20at%204.15.02%20PM.mp4 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1961048 Title: pcmanfm-qt ugly dithering on mouseover highlights To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pcmanfm-qt/+bug/1961048/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs