Created attachment 178793 [details] Demonstration SUMMARY In Plasma 6.3, it is now possible to set "Color accuracy: Prefer color accuracy." However, for some reason, this causes strange black artifacts in plasmashell and KRunner on my hardware. These artifacts appear when opening applets or entering edit mode, flickering rapidly or even flooding the entire screen. Switching between desktops temporarily fixes the issue. I tested this on two different distributions, and it seems to be a hardware-related problem. Interestingly, there is no black flickering in KWin effects or within applications themselves. It may be related to this bug: https://bugs.kde.org/500477 STEPS TO REPRODUCE 1. Go to System Settings, open "Display & Monitor", and set "Color Accuracy: Prefer color accuracy." 2. Actively interact with plasmashell or KRunner: open applets, enter edit mode, etc. OBSERVED RESULT Black artifacts appear (see video) SOFTWARE/OS VERSIONS Operating System: ALT Regular KDE KDE Plasma Version: 6.3.1 KDE Frameworks Version: 6.11.0 Qt Version: 6.8.2 Kernel Version: 6.13.4-6.13-alt1 (64-bit) Graphics Platform: Wayland Processors: 4 × Intel® Core™ i5-5200U CPU @ 2.20GHz Memory: 15.5 GiB of RAM Graphics Processor 1: Mesa Intel® HD Graphics 5500 Graphics Processor 2: llvmpipe Manufacturer: Acer Product Name: Aspire E5-573G System Version: V3.72 $ inxi -Gxxx Graphics: Device-1: Intel HD Graphics 5500 vendor: Acer Incorporated ALI driver: i915 v: kernel arch: Gen-8 ports: active: HDMI-A-1 empty: DP-1 bus-ID: 00:02.0 chip-ID: 8086:1616 class-ID: 0300 Device-2: NVIDIA GM108M [GeForce 940M] vendor: Acer Incorporated ALI driver: nvidia v: 570.86.16 arch: Maxwell pcie: speed: 5 GT/s lanes: 4 bus-ID: 04:00.0 chip-ID: 10de:1347 class-ID: 0302 Display: wayland server: X.org v: 1.21.1.15 with: Xwayland v: 24.1.5 compositor: kwin_wayland driver: X: loaded: modesetting,nvidia unloaded: fbdev,nouveau,vesa alternate: nv dri: iris gpu: i915 display-ID: 0 Monitor-1: HDMI-A-1 model: Huawei SSN-24 res: mode: 1920x1080 hz: 75 scale: 100% (1) dpi: 93 size: 527x296mm (20.75x11.65") diag: 604mm (23.8") modes: max: 1920x1080 min: 720x400 API: EGL v: 1.5 hw: drv: intel iris drv: nvidia platforms: device: 0 drv: nvidia gbm: drv: nvidia surfaceless: drv: nvidia wayland: drv: iris x11: drv: iris API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: intel mesa v: 24.3.4 glx-v: 1.4 direct-render: yes renderer: Mesa Intel HD Graphics 5500 (BDW GT2) device-ID: 8086:1616 display-ID: :1.0 API: Vulkan v: 1.4.304 layers: 9 surfaces: xcb,xlib,wayland device: 0 type: integrated-gpu driver: N/A device-ID: 8086:1616 device: 1 type: discrete-gpu driver: N/A device-ID: 10de:1347 device: 2 type: cpu driver: N/A device-ID: 10005:0000 Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo de: kscreen-console,kscreen-doctor gpu: nvidia-settings,nvidia-smi wl: wayland-info x11: xdpyinfo, xprop, xrandr However, on THIS equipment the problem does NOT occur: Operating System: EndeavourOS KDE Plasma Version: 6.3.1 KDE Frameworks Version: 6.11.0 Qt Version: 6.8.2 Kernel Version: 6.13.3-zen1-1-zen (64-bit) Graphics Platform: Wayland Processors: 16 × Intel® Xeon® CPU E5-2640 v3 @ 2.60GHz Memory: 15.5 GiB of RAM Graphics Processor: AMD Radeon RX 470 Graphics Graphics: Device-1: Advanced Micro Devices [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] vendor: PC Partner / Sapphire driver: amdgpu v: kernel arch: GCN-4 pcie: speed: 8 GT/s lanes: 16 ports: active: HDMI-A-2 empty: DP-1, DP-2, DVI-D-1, HDMI-A-1 bus-ID: 03:00.0 chip-ID: 1002:67df class-ID: 0300 temp: 47.0 C Display: wayland server: X.org v: 1.21.1.15 with: Xwayland v: 24.1.5 compositor: kwin_wayland driver: X: loaded: amdgpu unloaded: modesetting alternate: fbdev,vesa dri: radeonsi gpu: amdgpu display-ID: 0 Monitor-1: HDMI-A-2 model: Huawei AD80HW res: mode: 1920x1080 hz: 75 scale: 100% (1) dpi: 93 size: 527x296mm (20.75x11.65") diag: 604mm (23.8") modes: max: 1920x1080 min: 720x400 API: EGL v: 1.5 hw: drv: amd radeonsi platforms: device: 0 drv: radeonsi device: 1 drv: swrast gbm: drv: kms_swrast surfaceless: drv: radeonsi wayland: drv: radeonsi x11: drv: radeonsi API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 24.3.4-arch1.1 glx-v: 1.4 direct-render: yes renderer: AMD Radeon RX 470 Graphics (radeonsi polaris10 LLVM 19.1.7 DRM 3.60 6.13.3-zen1-1-zen) device-ID: 1002:67df display-ID: :1.0 API: Vulkan v: 1.4.303 layers: 4 surfaces: xcb,xlib,wayland device: 0 type: discrete-gpu driver: N/A device-ID: 1002:67df Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo de: kscreen-console,kscreen-doctor wl: wayland-info x11: xdpyinfo, xprop, xrandr Operating System: EndeavourOS KDE Plasma Version: 6.3.1 KDE Frameworks Version: 6.11.0 Qt Version: 6.8.2 Kernel Version: 6.13.1-1-cachyos (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 5825U with Radeon Graphics Memory: 5.6 GiB of RAM Graphics Processor: AMD Radeon Graphics Manufacturer: LENOVO Product Name: 82RN System Version: IdeaPad 3 15ABA7 Graphics: Device-1: Advanced Micro Devices [AMD/ATI] Barcelo vendor: Lenovo driver: amdgpu v: kernel arch: GCN-5 pcie: speed: 8 GT/s lanes: 16 ports: active: eDP-1 empty: DP-1,HDMI-A-1 bus-ID: 04:00.0 chip-ID: 1002:15e7 class-ID: 0300 temp: 31.0 C Device-2: Syntek Integrated Camera driver: uvcvideo type: USB rev: 2.0 speed: 480 Mb/s lanes: 1 bus-ID: 1-3:2 chip-ID: 174f:2465 class-ID: fe01 serial: 0001 Display: wayland server: X.org v: 1.21.1.15 with: Xwayland v: 24.1.5 compositor: kwin_wayland driver: X: loaded: amdgpu unloaded: modesetting alternate: fbdev,vesa dri: radeonsi gpu: amdgpu display-ID: 0 Monitor-1: eDP-1 model: Lenovo 0x9052 res: mode: 1920x1080 hz: 60 scale: 125% (1.25) to: 1536x864 dpi: 142 size: 344x193mm (13.54x7.6") diag: 394mm (15.5") modes: max: 1920x1080 min: 640x480 API: EGL v: 1.5 hw: drv: amd radeonsi platforms: device: 0 drv: radeonsi device: 1 drv: swrast gbm: drv: kms_swrast surfaceless: drv: radeonsi wayland: drv: radeonsi x11: drv: radeonsi API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 24.3.4-arch1.1 glx-v: 1.4 direct-render: yes renderer: AMD Radeon Graphics (radeonsi renoir LLVM 19.1.7 DRM 3.59 6.13.1-1-cachyos) device-ID: 1002:15e7 display-ID: :1.0 API: Vulkan v: 1.4.303 layers: 9 surfaces: xcb,xlib,wayland device: 0 type: integrated-gpu driver: N/A device-ID: 1002:15e7 Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo de: kscreen-console,kscreen-doctor gpu: corectrl wl: wayland-info x11: xdpyinfo, xprop, xrandr
I've got almost similar artifacts but in lesser count and only on Plasma popup panels, see attached video. System info: ``` Operating System: Fedora Linux 41 KDE Plasma Version: 6.3.1 KDE Frameworks Version: 6.11.0 Qt Version: 6.8.2 Kernel Version: 6.12.11-200.fc41.x86_64 (64-bit) Graphics Platform: Wayland Processors: 12 × 11th Gen Intel® Core™ i5-11600K @ 3.90GHz Memory: 31.1 ГиБ of RAM Graphics Processor: Intel® Graphics Manufacturer: Gigabyte Technology Co., Ltd. Product Name: B560M DS3H V2 ``` Output from `inxi -Gxxx`: ``` Graphics: Device-1: Intel RocketLake-S GT1 [UHD Graphics 750] vendor: Gigabyte driver: i915 v: kernel arch: Xe ports: active: HDMI-A-3 empty: DP-1,HDMI-A-1,HDMI-A-2 bus-ID: 00:02.0 chip-ID: 8086:4c8a class-ID: 0300 Display: wayland server: X.org v: 1.21.1.15 with: Xwayland v: 24.1.5 compositor: kwin_wayland driver: X: loaded: modesetting unloaded: fbdev,vesa dri: iris gpu: i915 display-ID: 0 Monitor-1: HDMI-A-3 model: Philips PHL 274E5 serial: UHB1715003371 res: 1920x1080 dpi: 82 size: 598x336mm (23.54x13.23") diag: 686mm (27") modes: max: 1920x1080 min: 720x400 API: EGL v: 1.5 hw: drv: intel iris platforms: device: 0 drv: iris device: 1 drv: swrast gbm: drv: iris surfaceless: drv: iris wayland: drv: iris x11: drv: iris API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa v: 24.3.4 glx-v: 1.4 direct-render: yes renderer: Mesa Intel Graphics (RKL GT1) device-ID: 8086:4c8a display-ID: :0.0 API: Vulkan v: 1.4.304 layers: 7 surfaces: xcb,xlib,wayland device: 0 type: integrated-gpu driver: N/A device-ID: 8086:4c8a device: 1 type: cpu driver: N/A device-ID: 10005:0000 Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo de: kscreen-console,kscreen-doctor gpu: corectrl, intel_gpu_top, lsgpu wl: swaymsg, wayland-info, wlr-randr x11: xdriinfo, xdpyinfo, xprop, xrandr ```
Created attachment 178794 [details] Plasma popup with black artifacts
I think a lot of us are having them when we enable that option. This is possibly a duplicate of: https://bugs.kde.org/show_bug.cgi?id=500477
(In reply to John from comment #3) > I think a lot of us are having them when we enable that option. > This is possibly a duplicate of: > https://bugs.kde.org/show_bug.cgi?id=500477 Which probably is a duplicate too, of this one: https://bugs.kde.org/show_bug.cgi?id=499935
*** This bug has been marked as a duplicate of bug 499935 ***