Created attachment 175046 [details] Video of the bug SUMMARY Hello, when I hover the mouse over an icon in the panel, it correctly shows the tooltip. However, when I quickly move the mouse back and forth between two icons, the rendering of the tooltips seems to malfunction. Once I slow down the movement, the tooltips appear normal again. Since it’s difficult for me to describe the issue in words, I have recorded a video demonstrating the problem. STEPS TO REPRODUCE 1. Hover over the kickoff icon. 2. Quickly move the mouse over the settings icon and then back to the kickoff icon, and repeat the process quickly. OBSERVED RESULT The tooltips are rendered incorrectly. EXPECTED RESULT Correctly rendered tooltips. SOFTWARE/OS VERSIONS Operating System: Fedora Linux 41 KDE Plasma Version: 6.2.1 KDE Frameworks Version: 6.7.0 Qt Version: 6.7.2 Kernel Version: 6.11.4-300.fc41.x86_64 (64-bit) Graphics Platform: Wayland ADDITIONAL INFORMATION Processors: 16 × AMD Ryzen 7 7800X3D 8-Core Processor Memory: 30.9 GiB of RAM Graphics Processor: NVIDIA GeForce RTX 4080 SUPER/PCIe/SSE2 Manufacturer: Micro-Star International Co., Ltd. Product Name: MS-7E16 System Version: 1.0 Screens ======= Number of Screens: 3 Screen 0: --------- Name: HDMI-A-1 Enabled: 1 Geometry: 5120,0,1080x1920 Scale: 1 Refresh Rate: 143981 Adaptive Sync: incapable Screen 1: --------- Name: DP-1 Enabled: 1 Geometry: 2560,240,2560x1440 Scale: 1 Refresh Rate: 360000 Adaptive Sync: automatic Screen 2: --------- Name: DP-2 Enabled: 1 Geometry: 0,240,2560x1440 Scale: 1.5 Refresh Rate: 59997 Adaptive Sync: automatic
A similar or the same issue seems to exist in GTK as well (https://gitlab.gnome.org/GNOME/gtk/-/issues/5832). However, since GTK now uses Vulkan, I’ve never encountered the problem there. Since this appears to be an issue with the NVIDIA driver, I’m not sure if there’s anything you can do about it or if it’s something you'd want to address.
Created attachment 175419 [details] Panel tooltip glitch on Plasma 6.2.2
I'm seeing this as well on Plasma 6.2.2 (added attachment with what it looks like on my system, with a non-floating panel). Operating System: Fedora Linux 41 KDE Plasma Version: 6.2.2 KDE Frameworks Version: 6.7.0 Qt Version: 6.7.2 Kernel Version: 6.11.5-300.fc41.x86_64 (64-bit) Graphics Platform: Wayland Graphics Processor: NVIDIA GeForce RTX 4070 SUPER/PCIe/SSE2
Thanks for the screen recordings. I'm not able to reproduce this issue with current git master on my system. I have an AMD GPU, however. It may be an issue specific to the NVIDIA GPU drivers. Is anyone able to experience this issue *without* an AMD GPU using the proprietary drives? Is anyone brave enough to try with Nouveau or the open kernel drivers, rather than the proprietary drivers?
(In reply to Nate Graham from comment #4) > Thanks for the screen recordings. I'm not able to reproduce this issue with > current git master on my system. I have an AMD GPU, however. It may be an > issue specific to the NVIDIA GPU drivers. Is anyone able to experience this > issue *without* an AMD GPU using the proprietary drives? Is anyone brave > enough to try with Nouveau or the open kernel drivers, rather than the > proprietary drivers? I never thought I'd get credit for being brave this easily, but - to confirm your hypothesis, I did not notice this issue when I rebooted my Nvidia desktop into the Nouveau drivers, nor could I see it on my wife's AMD-only laptop. (Using Nouveau introduced an array of other issues, but this particular one disappeared!)
Thanks a lot. So yeahhhh It's gonna be a proprietary NVIDIA GPU driver then, sorry! If you want to get even more credit, feel free to report this issue to the NVIDIA folks, either by sending an email to linux-bugs@nvidia.com or making a post at https://forums.developer.nvidia.com/c/gpu-graphics/linux. It would be helpful to the NVIDIA developers if you could run nvidia-bug-report.sh and attach the resulting file in your report.
Thanks - for reference for others, the Nvidia bug post is here: https://forums.developer.nvidia.com/t/tooltip-distortion-on-kde-plasma/312358
*** Bug 499449 has been marked as a duplicate of this bug. ***
*** Bug 504132 has been marked as a duplicate of this bug. ***
*** Bug 510338 has been marked as a duplicate of this bug. ***
*** Bug 507297 has been marked as a duplicate of this bug. ***
*** Bug 507628 has been marked as a duplicate of this bug. ***
We're starting to get reports of this affecting people without NVIDIA GPUs. Re-opening.
Not sure if my report below should be a separate issue. Some hamburger submenus appear distorted like in my menu screenshot. It happens every time I open the menu, but it’s not always the same submenus. The problem fixes itself if I move to another submenu and back. After a problem submenu has been drawn correctly once, it will always be drawn correctly until I close and re-open the hamburger menu. Is this a known issue? Operating System: Debian GNU/Linux 13 KDE Plasma Version: 6.3.6 KDE Frameworks Version: 6.13.0 Qt Version: 6.8.2 Kernel Version: 6.12.48+deb13-amd64 (64-bit) Graphics Platform: Wayland Processors: 4 × Intel® Core™ i7-5600U CPU @ 2.60GHz Memory: 8 GiB of RAM (7.6 GiB usable) Graphics Processor: Mesa Intel® HD Graphics 5500
Created attachment 185867 [details] Hamburger submenu
I see a similar thing on AMD. This happens quite often when using the titlebar "application menu" button, and also if I have the global menu in a panel (screenshots below). However I've never seen it in hamburger menus (at least in Dolphin and Konsole), nor in other cascading menus, nor in tooltips anywhere. Operating System: Debian GNU/Linux 13 KDE Plasma Version: 6.3.6 KDE Frameworks Version: 6.13.0 Qt Version: 6.8.2 Kernel Version: 6.16.3+deb13-amd64 (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 8840HS w/ Radeon 780M Graphics Memory: 32 GB of RAM (30.6 GB usable) Graphics Processor: AMD Radeon Graphics Mesa Version: 25.2.4 [also happened with 25.0.7]
Created attachment 185868 [details] Distorted submenu in the titlebar application menu
Created attachment 185869 [details] Distorted submenu in the global menu
Adding to my previous comment: I was able to reproduce the bug under the QPainter backend (KWIN_COMPOSE=Q) which I believe does not use the GPU(?) So it might be that the menu distortion bug is not GPU-related after all? (I could also reproduce it under all other Wayland-compatible backends: O, O1, O2, O2ES)
Created attachment 186491 [details] different but similar rendering issue when hovering over an app When I hover over an app, the tooltip takes over the whole screen (may be unrelated different issue but could be same). Intel Core Ultra 7 256V
should probably have added other important info, this is on plasma 6.5.1, fedora 43
*** Bug 505702 has been marked as a duplicate of this bug. ***