On Monday, 15 September 2025 07:54:59 British Summer Time Dale wrote: > Michael wrote:
> > The size of this log file increases over time. If you reboot/restart your > > desktop daily, the file will be overwritten and remain at a reasonable > > size - my wayland-session.log is currently ~ 165kB. > > > > Dale does not reboot often, so the file will grow until it is > > deleted/rotated. > > I logged out and back in when I finished my updates this morning. It > was huge before I logged out and still huge when I logged back in. It > seems it doesn't delete/rotate here for some reason. The reason must be you logged in a Wayland Plasma desktop, rather the Xserver desktop? > > You can automate the rotation of this file with logrotate. Just add it in > > the logrotate.d/ directory and specify a maximum size you're happy with, > > e.g. "size 3M" and/or how long before it is rotated, e.g. "weekly". > > Honestly, if it is logging a problem that much, I'd like to know what it > is so I can fix it. That way the log is a reasonable size and whatever > it is complaining about is fixed and working correctly as well. > > I did delete the file. So far, it hasn't came back. I'll try to > remember to look when I logout and back in next weekend after updates. > If it does, I'll look into logrotate. I haven't set up one of those in > ages. :/ > > Still wonder what it is complaining so much about. o_O > > Dale > > :-) :-) The sddm log can be quite chatty about non-critical warnings triggered by your desktop. I just logged in an hour ago and my '.local/share/sddm/wayland- session.log' is already 897 lines long. It's getting filled up with warnings about plasmoids, missing files, etc. - e.g.: file:///usr/share/plasma/plasmoids/org.kde.plasma.kickoff/contents/ui/ main.qml:310:13: QML Image: Cannot open: file: ///usr/share/plasma/plasmoids/org.kde.plasma.kickoff/contents/ui/start-here- kde-symbolic IFFChunk::innerFromDevice: unkwnown chunk "\x89PNG" IFFChunk::innerFromDevice: unkwnown chunk "\x89PNG" IFFChunk::innerFromDevice: unkwnown chunk "\x89PNG" ... Since you restart your desktop rarely, setting up logrotate to deal with this log file would make sense.
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