https://bugs.kde.org/show_bug.cgi?id=509165
Bug ID: 509165
Summary: Graphical glitches on desktop, blinking white dots and
lines on screen border
Classification: Plasma
Product: plasmashell
Version First 6.4.4
Reported In:
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: minor
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: 1.0
Created attachment 184751
--> https://bugs.kde.org/attachment.cgi?id=184751&action=edit
Lower end of the screen with the bugs in question
SUMMARY
On an AMD HX370-based system there are randomly appearing white lines on the
border of the screen. See attachment. Couldn't reproduce on other system, might
be related to the AMD Strix Point platform specifically. Can be temporarily
removed by changing the fractional scaling factor arbitrarily. Appears to be
*under* the cursor.
STEPS TO REPRODUCE
1. Use the computer
2. wait until it happens
OBSERVED RESULT
White blinky dots and lines while using the desktop. Mouse can be moved over
them. Fullscreen applications move over it, desktop windows do NOT (still
visible).
EXPECTED RESULT
No blinking dots.
SOFTWARE/OS VERSIONS
Linux: OpenSuse Tumbleweed 20250829
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.2
ADDITIONAL INFORMATION
Might be related to https://bugs.kde.org/show_bug.cgi?id=373232. With earlier
Kernel & KDE combinations the very issues shown in that issue resurfaced. The
white lines within terminals & such now appear very rarely. The lines in the
screen border however happen all the time.
Further system info:
Graphics:
Device-1: Advanced Micro Devices [AMD/ATI] Strix [Radeon 880M / 890M]
driver: amdgpu v: kernel
Display: wayland server: X.org v: 1.21.1.15 with: Xwayland v: 24.1.8
compositor: kwin_wayland driver: gpu: amdgpu resolution: 3200x2000~120Hz
API: EGL v: 1.5 drivers: kms_swrast,radeonsi,swrast
platforms: gbm,wayland,x11,surfaceless,device
API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 25.1.7 renderer: AMD
Radeon Graphics (radeonsi gfx1150 LLVM 20.1.8 DRM 3.64
6.17.0-rc4-1.ge245414-default)
API: Vulkan v: 1.4.321 drivers: N/A surfaces: N/A
Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
de: kscreen-console,kscreen-doctor wl: wayland-info
x11: xdpyinfo, xprop, xrandr
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