SUMMARY Spectacle takes a very long time to copy a 4K screenshot to clipboard. 1080p screenshots are way faster. STEPS TO REPRODUCE 1. Set the 'Copy image to clipboard' option ('After taking a screenshot') in Spectacle's general settings 2. Also enable the 'Save file to default folder' checkbox 3. Take a fullscreen screenshot of a 4K desktop OBSERVED RESULT The image file is created rather fast in contrast to copying the image to clipboard which creates a huge delay EXPECTED RESULT The screenshot is copied reasonably fast to clipboard SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 6.3.3 KDE Frameworks Version: 6.12.0 Qt Version: 6.8.2 Kernel Version: 6.13.8-arch1-1 (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 5800X 8-Core Processor Memory: 62.7 GiB of RAM Graphics Processor: AMD Radeon RX 6600 XT ADDITIONAL INFORMATION I assume this is a limitation of clipboard image handling as opposed to it being purely a Spectacle issue, but there might potentially be a better solution, like copying the image handle to the clipboard (this works with most apps that accept files pasted from clipboard, including browsers). Currently, this option does not exist (only copying the image location is possible). I am also using 200% display scaling.
I can reproduce this. When using a dual monitor setup with 2560x1440 (100% scaling, primary) and 3840x2160 (150% scaling, secondary) it's very slow, but turning off the second monitor and setting the primary monitor to 1280x1024 (100% scaling) it's fast. Operating System: Fedora Linux 42 KDE Plasma Version: 6.4.0 KDE Frameworks Version: 6.15.0 Qt Version: 6.9.1 Kernel Version: 6.15.3-200.fc42.x86_64 (64-bit) Graphics Platform: Wayland Processors: 32 × AMD Ryzen 9 7950X3D 16-Core Processor Memory: 64 GiB of RAM (62,4 GiB usable) Graphics Processor: AMD Radeon RX 7900 XTX