Created attachment 178715 [details] Showcase of the bug. SUMMARY When using per monitor fractional scaling, with a specific resolution and scaling value, the rectangular region feature captures the wrong screen. STEPS TO REPRODUCE 1. Set primary monitor to 2560x1440, 125% scaling. 2. Set secondary monitor to 3840x2160, 185% scaling, placed left of the primary monitor. 3. Launch spectacles 4. Press on "Rectangular Region" 5. Select a region on the secondary monitor. OBSERVED RESULT The rectangular region captures the primary monitor. EXPECTED RESULT The rectangular region should capture the content on the secondary monitor. SOFTWARE/OS VERSIONS Linux: Fedora 41 KDE Plasma Version: 6.3.1 KDE Frameworks Version: 6.11.0 Qt Version: 6.8.2 ADDITIONAL INFORMATION - This seems to be a regression, I cannot replicate it with a Fedora 41 Live USB. - This bug does not appear when the secondary monitor is placed right of the primary monitor. - Changing secondary monitor scaling to 175% fixes the issue. - I was not able to replicate this bug on a different resolution.
I have an AMD GPU and i cannot reproduce this bug. Operating System: Arch Linux KDE Plasma Version: 6.3.1 KDE Frameworks Version: 6.11.0 Qt Version: 6.8.2 Kernel Version: 6.13.3-arch1-1 (64-bit) Graphics Platform: Wayland Processors: 4 × Intel® Core™ i5-7600K CPU @ 3.80GHz Memory: 23.4 GiB of RAM Graphics Processor: AMD Radeon Pro 580X Manufacturer: Apple Inc. Product Name: iMac18,3 System Version: 1.0
I have an AMD iGPU and I had exactly the same issue although using no scaling for my first screen (Laptop) and 115% the second (but set as primary) screen. Also the 2nd screen was on the left side. While preparing this information, I completely removed the fractional scaling of my 2nd screen but to no prevail. However, just for testing, I've moved this screen to the right and suddenly it worked. Then I moved it back to the left side and surprise, it works as well. Even a logoff or reboot didn't change that. Looks like this moving have healed it. Operating System: Arch Linux KDE Plasma Version: 6.3.1 KDE Frameworks Version: 6.11.0 Qt Version: 6.8.2 Kernel Version: 6.13.3-arch1-1 (64-bit) Graphics Platform: Wayland
(In reply to maik.schaefer from comment #2) > While preparing this information, I completely removed the fractional > scaling of my 2nd screen but to no prevail. However, just for testing, I've > moved this screen to the right and suddenly it worked. Then I moved it back > to the left side and surprise, it works as well. Even a logoff or reboot > didn't change that. Looks like this moving have healed it. This unfortunately does not work with my setup. I tried finding a more common resolution where I can reproduce this bug, but I wasn't able to. Lowering the scaling from 185% to 175% on my second monitor as a workaround for the time being.
Hi - merging this in with another bug report for this issue. Thanks! *** This bug has been marked as a duplicate of bug 502047 ***