The last 2 weeks updates have broken KDE for me, with a flickering grey bottom portion of the screen that fills a random amount of the screen. Possibly refresh rate related?
In some cases it remains longer, this image was taken while most of the screen remained grey until I moved the mouse.
Dropping the refresh rate from 120Hz on my 144Hz capable display to 60Hz does seem to prevent the issue from occurring. My display has been quite happily running at 120Hz until the recent update.
(edit) just noticed screenshot also shows double mouse pointer bug that started about a month ago.
It might be useful for you to share the graphics hardware, driver, and environment details:
inxi -GSazSystem:
Kernel: 6.15.1-1-default arch: x86_64 bits: 64 compiler: gcc v: 14.3.0
clocksource: tsc avail: hpet,acpi_pm
parameters: BOOT_IMAGE=/boot/vmlinuz-6.15.1-1-default
root=UUID=71572811-269b-4ced-88d0-74f348f8a78f splash=silent quiet
security=apparmor amd_pstate=guided mitigations=auto
Desktop: KDE Plasma v: 6.3.5 tk: Qt v: N/A info: frameworks v: 6.14.0
wm: kwin_wayland tools: avail: swayidle,swaylock,xscreensaver vt: 2 dm:
1: GDM v: 48.0 2: SDDM note: stopped Distro: openSUSE Tumbleweed 20250612
Graphics:
Device-1: Advanced Micro Devices [AMD/ATI] Navi 31 [Radeon RX 7900 XT/7900
XTX/7900 GRE/7900M] vendor: XFX RX-79XMERCB9 driver: amdgpu v: kernel
arch: RDNA-3 code: Navi-3x process: TSMC n5 (5nm) built: 2022+ pcie:
gen: 4 speed: 16 GT/s lanes: 16 ports: active: DP-1 empty: DP-2, DP-3,
HDMI-A-1, Writeback-1 bus-ID: 2f:00.0 chip-ID: 1002:744c class-ID: 0300
Display: wayland server: X.org v: 1.21.1.15 with: Xwayland v: 24.1.6
compositor: kwin_wayland driver: X: loaded: amdgpu dri: radeonsi gpu: amdgpu
display-ID: 0
Monitor-1: DP-1 model: Gigabyte M32UC serial: <filter> built: 2022
res: 3840x2160 dpi: 140 gamma: 1.2 size: 697x392mm (27.44x15.43")
diag: 800mm (31.5") ratio: 16:9 modes: max: 3840x2160 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: 25.1.3 glx-v: 1.4
direct-render: yes renderer: AMD Radeon RX 7900 XTX (radeonsi navi31 LLVM
20.1.6 DRM 3.63 6.15.1-1-default) device-ID: 1002:744c memory: 23.44 GiB
unified: no display-ID: :0.0
API: Vulkan v: 1.4.313 layers: 8 device: 0 type: discrete-gpu name: AMD
Radeon RX 7900 XTX (RADV NAVI31) driver: N/A device-ID: 1002:744c
surfaces: N/A device: 1 type: cpu name: llvmpipe (LLVM 20.1.6 256 bits)
driver: N/A device-ID: 10005:0000 surfaces: N/A
Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
de: kscreen-console,kscreen-doctor gpu: corectrl,radeontop wl: kanshi,
swaymsg, wayland-info, wlr-randr x11: xdpyinfo, xprop, xrandr
(edit) taken when currently on 60Hz
I guess I have the same issue.
@Bird I’m not seeing the errors you posted, but the screen shots look similar, especially the last one.
You also seem to have the unrelated double cursor bug (which I had before this new issue cropped up).
I’ve just tried the advice someone posted on yours and loaded my old kernel 6.14.6-1-default and that seems to have fixed it. So I guess it’s a kernel bug.
(edit) I have created an upstream bug report for the double mouse pointer issue: KDE-505623
And created KDE-505625.
But it seems in error because I was then able to reproduce the issue in gnome.
Interestingly also with the double mouse pointer bug. In fact I wasn’t able to reproduce the double pointer bug in gnome without getting the grey screen issue, also the area affected was always just below the mouse pointer.
Here is the double mouse pointer issue in gnome with kernel 6.14.6-1-default.
I found a bug report for this under drm/amdgpu in the kernel.
