SUMMARY Currently, the generator will endlessly attempt to make thumbnails for pictures or videos that are corrupted or currently downloading. Downloading a video and looking at the file (while downloading) in Dolphin skyrockets CPU usage and abuses I/O bandwidth, making HDD users' system practically unusable unless they exit the program (Dolphin, File Picker,etc). Can a timeout be implemented as a safeguard? STEPS TO REPRODUCE 1. Open Dolphin or File Picker with thumbnails enabled. 2. Go to a directory with images/videos. 3. Find at least one broken image. OBSERVED RESULT If there is at least one broken image, the thumbnailer will abuse the CPU and Disk I/O, freezing the computer indefinitely. EXPECTED RESULT In the event of a broken image, try loading a preview for a set amount of time (5~10 seconds?) before displaying a 'broken image' placeholder and cancelling the operation. SOFTWARE/OS VERSIONS Operating System: openSUSE Leap 15.4 KDE Plasma Version: 5.25.4 KDE Frameworks Version: 5.96.0 Qt Version: 5.15.5 Kernel Version: 5.14.21-150400.24.11-default (64-bit) Graphics Platform: X11 Processors: 4 × Intel® Core™ i5-3320M CPU @ 2.60GHz Memory: 7.6 GiB of RAM Graphics Processor: Mesa DRI Intel® HD Graphics 4000 Manufacturer: LENOVO Product Name: 2347G2U System Version: ThinkPad T430 ADDITIONAL INFORMATION One could argue that the proposed behavior would be bad for slower media (SMB, Optical Media, etc), but I'm thinking that the logic can be applied specifically to images that 'fail' to be parsed/loaded correctly (if that is even possible).