SUMMARY When using ImHex (v1.37.4) and moving the cursor out of the window, when the cursor is outside, graphical glitches appear on the mouse cursor STEPS TO REPRODUCE 1. Move mouse into client area of ImHex 2. Move mouse to the left border to see the resize cursor 3. OBSERVED RESULT Graphical glitch appears on the left side of the cursor EXPECTED RESULT No glitches. SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 6.4.91 KDE Frameworks Version: 6.19.0 Qt Version: 6.10.0 Kernel Version: 6.16.8-arch3-1 (64-bit) Graphics Platform: Wayland Processors: 12 × Intel® Core™ i7-9750H CPU @ 2.60GHz Memory: 32 GiB of RAM (31.0 GiB usable) Graphics Processor 1: Mesa Intel® UHD Graphics 630 Graphics Processor 2: Mesa Intel® UHD Graphics 630 Manufacturer: LENOVO Product Name: 20QVCTO1WW System Version: ThinkPad X1 Extreme 2nd ADDITIONAL INFORMATION
The display is setup on a 3840x2160 resolution with 200% scaling
Can't repro, I tried both flatpak and fedora package of ImHex. Only thing that happens is the mouse cursor changes it's look completely, but that seems to be the app taking over the cursor visuals. Operating System: Fedora Linux 42 KDE Plasma Version: 6.5.80 KDE Frameworks Version: 6.19.0 Qt Version: 6.9.2 Kernel Version: 6.16.10-200.fc42.x86_64 (64-bit) Graphics Platform: Wayland Processors: 12 × AMD Ryzen 5 3600 6-Core Processor Memory: 16 GiB of RAM (15.5 GiB usable) Graphics Processor: AMD Radeon RX 6600
Created attachment 185737 [details] Grapgical glitch at cursor I have an external display with 100% scaling, there I dont see an issue, but on the display with 200% scaling I can reproduce it 1 out of three times. Recording the video with spectacle does not show the issue, therefore I attached a photo taken from the display
A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/8264
Git commit 705ca2b3e27fbedf81ee308f9b7cf0f414ced76b by Xaver Hugl. Committed on 17/10/2025 at 11:12. Pushed by zamundaaa into branch 'master'. scene/scene: more properly disable damage tracking for ItemTreeView Seems like just using the aligned rect can still have issues sometimes; the infiniteRegion() should be safer. M +2 -3 src/scene/scene.cpp https://invent.kde.org/plasma/kwin/-/commit/705ca2b3e27fbedf81ee308f9b7cf0f414ced76b
Git commit 6360626814e8bf4c4db6f2fb742275c73455d60d by Xaver Hugl. Committed on 20/10/2025 at 11:17. Pushed by zamundaaa into branch 'Plasma/6.5'. scene/scene: more properly disable damage tracking for ItemTreeView Seems like just using the aligned rect can still have issues sometimes; the infiniteRegion() should be safer. (cherry picked from commit 705ca2b3e27fbedf81ee308f9b7cf0f414ced76b) M +2 -3 src/scene/scene.cpp https://invent.kde.org/plasma/kwin/-/commit/6360626814e8bf4c4db6f2fb742275c73455d60d
This still happens in kwin-6.5.0-git-7e4600e5279ede12c8e6a1e4c09f5140c633c731
Created attachment 186190 [details] cursor-photo
*** Bug 511061 has been marked as a duplicate of this bug. ***
I can see this issue moving cursor between Qt5 applications (which sets cursor with different style and lowres).
Just updated to 6.5.1, and the issue is still present.
Agreed, the bug is still present in 6.5.1
I noticed cursor in 6.5.0, 6.5.1 is less smooth when it's changing shape or some small animations are running on the screen. I can see it while moving cursor in web browser or in QtCreator where some widgets has hover animation. The overall cursor latency is still good.
A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/8390
Git commit 382e48b9124ce99b066427f23f3ad1e2d328278e by Xaver Hugl, on behalf of Błażej Szczygieł. Committed on 12/11/2025 at 15:16. Pushed by zamundaaa into branch 'Plasma/6.5'. scene/scene: use infinite region to repaint entire ItemTreeView M +2 -1 src/scene/scene.cpp https://invent.kde.org/plasma/kwin/-/commit/382e48b9124ce99b066427f23f3ad1e2d328278e