Thanks for confirming the issue. I booted back into 20210810 snapshot and issue disappeared I have created https://bugzilla.opensuse.org/show_bug.cgi?id=1190095 for this Cheers Axel Am Mittwoch, 1. September 2021, 18:53:14 CEST schrieb Владимир Давыденко:

confirm

ср, 1 сент. 2021 г. в 18:20, Axel Braun <docb@opensuse.org>:

...

Hi,

I did a dup from 20210810 to 20210828, and since then I noticed a very slow redraw on KDE Plasma: when scolling in a terminal or in a window, the screen looks 'broken' for a moment, then the rendering is back.

30: PCI 02.0: 0300 VGA compatible controller (VGA)

[Created at pci.386] Unique ID: _Znp.WlxwpsiDkK3 SysFS ID: /devices/pci0000:00/0000:00:02.0 SysFS BusID: 0000:00:02.0 Hardware Class: graphics card Model: "Intel CoffeeLake-H GT2 [UHD Graphics 630]" Vendor: pci 0x8086 "Intel Corporation" Device: pci 0x3e9b "CoffeeLake-H GT2 [UHD Graphics 630]" SubVendor: pci 0x17aa "Lenovo" SubDevice: pci 0x229f Driver: "i915" Driver Modules: "i915" Memory Range: 0xe9000000-0xe9ffffff (rw,non-prefetchable) Memory Range: 0xc0000000-0xcfffffff (ro,non-prefetchable) I/O Ports: 0x4000-0x403f (rw) Memory Range: 0x000c0000-0x000dffff (rw,non-prefetchable,disabled) IRQ: 143 (1116926 events) Module Alias: "pci:v00008086d00003E9Bsv000017AAsd0000229Fbc03sc00i00"

Driver Info #0: Driver Status: i915 is active Driver Activation Cmd: "modprobe i915"

Config Status: cfg=new, avail=yes, need=no, active=unknown

Switching to nvidia chipset (prime-select) the issue is gone.

Anyone else to confirm this issue?

Cheers Axel

-- Dr. Axel Braun <docb@opensuse.org> Member of the openSUSE Board