SUMMARY After a reboot kde restore a session with dolphin. A thumbnail.so process uses 100% of one cpu STEPS TO REPRODUCE 1. open dolphin and go to a folder that shows thumbnails (everything normal) 2. reboot 3. at login the restored dolphin launches thumbnail.so that eates a cpu and tumbnails are not shown OBSERVED RESULT thumbnail.so eates a cpu and dolphin don't show thumbnails EXPECTED RESULT noral cpu usage and dolphin shows thumbnails SOFTWARE/OS VERSIONS Linux/KDE Plasma: Kubuntu 18.04 (available in About System) KDE Plasma Version: 5.12.7 KDE Frameworks Version: 5.44.0 Qt Version: 5.9.5 ADDITIONAL INFORMATION
Created attachment 119356 [details] thumbnail.so eating 100% of 1 cpu
Any chance you can test with a version more recent than 17.12? Like 18.12 or the upcoming 19.04?
Sorry, I don'understand which version are you referring. If you mean the Kubuntu version, it is 18.04 (the last LTS) updated daily; I should prefer not to abandon an LTS If you mean the KDE version (5.12.7) the only thing I can do (this is my home/office machine) without risk is to enable the Kubuntu backports ppa; but I don't know which Kde version will be installed. Should I install this ppa?
Additional informations: Hardware: Santech c37 (https://www.santech.eu/ ) processor Intel I7 videocard Nvidia GEForce GTX video drivers nvidia-driver-390 The strange thing is that this error apperas only on the Santech notebook. I have also an old HP Pavillion DV6 notebook which works correctly with the same software installed (Kubuntu 18.04 etc.) The correctly working HP have: processor Intel I3 videocard Nvidia GeForce GT 320M video drivers nvidia-340
Created attachment 119529 [details] LibreOffice/Calligra preview disabled UPDATE: disabling previews for LibreOffice and Calligra solves the problem. Still infestigating to narrow the list of disabled previews
*** This bug has been marked as a duplicate of bug 404652 ***