https://bugs.kde.org/show_bug.cgi?id=415950
Bug ID: 415950 Summary: 100% CPU usage of plasmashell Product: plasma-browser-integration Version: unspecified Platform: Archlinux Packages OS: Linux Status: REPORTED Severity: normal Priority: NOR Component: Firefox Assignee: k...@privat.broulik.de Reporter: insane...@gmail.com Target Milestone: --- Created attachment 124949 --> https://bugs.kde.org/attachment.cgi?id=124949&action=edit Screenshot of atop output. SUMMARY Arch Linux plasma-meta 5.17-1 kdebase-meta 19.12-1 Firefox 71.0 Plasma Integration 1.7 When Firefox generates a Download Notification in KDE CPU the CPU usage of plasmashell skyrockets. If I disable the Plasma integration, this does not happen. Also it does not happen for Media playback, despite also having a progress bar. STEPS TO REPRODUCE 1. Open Firefox 2. Enable Plasma integration plugin in firefox 3. Start a download OBSERVED RESULT plasmashell CPU usage goes to 100% (or higher) EXPECTED RESULT Download notification created with tracked progress, but not 100% CPU usage and increased GPU usage. SOFTWARE/OS VERSIONS Arch Linux packages plasma-meta 5.17-1 kdebase-meta 19.12-1 Firefox 71.0 Plasma Integration 1.7 Operating System: Arch Linux KDE Plasma Version: 5.17.4 KDE Frameworks Version: 5.65.0 Qt Version: 5.14.0 Kernel Version: 5.4.8-arch1-1 OS Type: 64-bit Processors: 12 × Intel® Core™ i7-9750H CPU @ 2.60GHz Memory: 15.5 GiB of RAM ADDITIONAL INFORMATION Due to the increased GPU usage, I can only assume its getting updated very frequently from firefox plugin and this is causing excessive redraws. Probably needs a tweak in the Firefox plugin to send updates less frequently. Or some kind of delay on the Plasma side to only actually update the notification less frequently. But I'm just spit balling here. -- You are receiving this mail because: You are watching all bug changes.