Thanks. The above attachment suggests to me that this is a virtual machine or something unusual, because:
[ 34.403367] tomasz gnome-shell[1410]: Failed to initialize accelerated iGPU/dGPU framebuffer sharing: Do not want to use software renderer (llvmpipe (LLVM 9.0, 256 bits)), falling back to CPU copy path [ 34.918603] tomasz gnome-shell[1410]: glamor: 'wl_drm' not supported [ 34.918603] tomasz gnome-shell[1410]: Missing Wayland requirements for glamor GBM backend [ 34.918603] tomasz gnome-shell[1410]: Failed to initialize glamor, falling back to sw So that's where all the CPU is going... It's Mesa trying to use all the CPU cores to emulate a GPU in software. Probably. Next, please: 1. Run: lspci -k > lspcik.txt and attach the file 'lspcik.txt' 2. Run: glxinfo > glxinfo.txt and attach the file 'glxinfo.txt' 3. Tell us if you have any gnome-shell extensions installed. -- 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/1850874 Title: gnome-shell 100% CPU usage on all cores when animated gif is displayed Status in gnome-shell package in Ubuntu: Incomplete Bug description: This started to happen with Ubuntu 19.10. When an animated gif is displayed in a browser, gnome-shell begins using 100% CPU on all cores. To reproduce: 1) open Firefox, or Chromium 2) load an URL where an animated gif is displayed - you can also use this direct link to https://i.stack.imgur.com/h6viz.gif 3) gnome-shell will start using 100% CPU on all cores (as long as Firefox/Chromium window is in the foreground) --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu8.1 Architecture: amd64 DisplayManager: gdm3 DistroRelease: Ubuntu 19.10 GsettingsChanges: InstallationDate: Installed on 2019-05-12 (172 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) Package: gnome-shell 3.34.1-1ubuntu1 PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1 RelatedPackageVersions: mutter-common 3.34.1-1ubuntu1 Tags: eoan Uname: Linux 5.3.0-19-generic x86_64 UpgradeStatus: Upgraded to eoan on 2019-10-16 (15 days ago) UserGroups: _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1850874/+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
