Cursor leaves trails, blinking, have a transparent square around it, i noticed that such behaviour usually apears when curcor is at left side of the screen.
System info:
Operating System: Manjaro Linux
KDE Plasma Version: 5.21.2
KDE Frameworks Version: 5.79.0
Qt Version: 5.15.2
Kernel Version: 5.4.101-1-MANJARO
OS Type: 64-bit
Graphics Platform: X11
Processors: 4 × Intel® Pentium® CPU N3700 @ 1.60GHz
Memory: 3.8 ГиБ of RAM
Graphics Processor: Mesa DRI Intel® HD Graphics 405
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> PCI Device: /devices/pci0000:00/0000:00:02.0 (0300:8086:22b1)
Display controller Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller
--------------------------------------------------------------------------------
> INSTALLED:
NAME: video-linux
ATTACHED: PCI
VERSION: 2018.05.04
INFO: Standard open source drivers.
PRIORITY: 2
FREEDRIVER: true
DEPENDS: -
CONFLICTS: -
CLASSIDS: 0300 0380 0302
VENDORIDS: 1002 8086 10de