Fresh install, Ubuntu 22.03, Kubuntu-Desktop. Over smb, the previews for camera-raw (ORF, CRW, CR2..) are not shown. All possible setup/hacks/tests failed. Locall, the previews are generated ok, so the thumbnail-generator is working normally. The 'don't generate over XX MiB' is of course set, all possible values tried. I can't find the problem, as there is no log generated (kernel.log, dmesg) STEPS TO REPRODUCE 1. Connect to smb over Dolphin (Proxmox Debia): everying is ok, files are accessible 2. Open a picture folder with camera-raw files 3. There are no preview-thumbnails generated for camera-raw files (JPGs are ok) 4. When I copy any of such raw-camera file to a local folder, the previews are visible OBSERVED RESULT No previews are generated in a smb folder EXPECTED RESULT Preview must be generated, as defined in the Settings (no 'over limit' is met) SOFTWARE/OS VERSIONS Linux/KDE Plasma: 22.04 + Plasma (both X11 and Wayland) (available in About System)
UPD: When the SMB is mounted manually into the filesystem (i.e. not by Dolphin, but by "mount -t cifs"), then the previews are generated normally.