https://bugs.kde.org/show_bug.cgi?id=407226
Bug ID: 407226 Summary: Colour Picker of GIMP doesn't work with OpenGL compositor backend Product: kwin Version: git master Platform: Other OS: Linux Status: REPORTED Severity: normal Priority: NOR Component: scene-opengl Assignee: kwin-bugs-n...@kde.org Reporter: alts...@gmail.com Target Milestone: --- SUMMARY When kwin_x11 uses OpenGL 2/3 compositor backends, GIMP 2.10 can't get right color with built-in color picker. STEPS TO REPRODUCE 1. Make sure you have compositing enabled with OpenGL backend 2. Install gimp 2.10.8+ (on Neon you can use ppa:otto-kesselgulasch/gimp) 3. Try to pick color OBSERVED RESULT GIMP picks color under mouse EXPECTED RESULT GIMP picks some color (black/blue) from Plasma theme SOFTWARE/OS VERSIONS Linux/KDE Plasma: KDE neon Unstable Edition KDE Plasma Version: 5.15.80 KDE Frameworks Version: 5.58.0 Qt Version: 5.12.0 ADDITIONAL INFORMATION GIMP 2.8.12 from repos is not affected. Flatpak version also works fine (didn't test Snap). After you switch backend to Xrender or "block compositing" from "Special Settings", color picker works properly. I tried it also on Kubuntu (Plasma 5.12.x) with this PPA. Debian 10 (Plasma 5.14.5) & Mageia 7 (Plasma 5.15.4) have GIMP 2.10 in the official repos and there problem is also reproducible. -- You are receiving this mail because: You are watching all bug changes.