https://bugs.kde.org/show_bug.cgi?id=454354

Patrick Kopper <kopper.patr...@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REPORTED                    |CONFIRMED
                 CC|                            |kopper.patr...@gmail.com
     Ever confirmed|0                           |1

--- Comment #1 from Patrick Kopper <kopper.patr...@gmail.com> ---
I am noticing the same problem using JabRef, both with openjdk and jdk. The
black flickering is so extreme that it covers almost the entire window at a
high frequency, making the software completely unusable. Only Java programs
running through XWayland are affected, running the same software through X11
works fine.

Running the same software using another GPU vendor works without issues. Not
sure if this is an Nvidia or KDE bug.

OS:             Arch Linux x86_64
Kernel: 5.18.9-zen1-1-zen
DE:             Plasma 5.25.2 (kwin)
GPU:    NVIDIA GeForce RTX 2060 Rev. A

$ lspci -vks 01:00.0
01:00.0 VGA compatible controller: NVIDIA Corporation TU106 [GeForce RTX 2060
Rev. A] (rev a1) (prog-if 00 [VGA controller])
        Subsystem: Gigabyte Technology Co., Ltd Device 37d9
        Flags: bus master, fast devsel, latency 0, IRQ 130, IOMMU group 1
        Memory at f6000000 (32-bit, non-prefetchable) [size=16M]
        Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Memory at f0000000 (64-bit, prefetchable) [size=32M]
        I/O ports at e000 [size=128]
        Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
        Capabilities: [60] Power Management version 3
        Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [78] Express Legacy Endpoint, MSI 00
        Capabilities: [100] Virtual Channel
        Capabilities: [250] Latency Tolerance Reporting
        Capabilities: [258] L1 PM Substates
        Capabilities: [128] Power Budgeting <?>
        Capabilities: [420] Advanced Error Reporting
        Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024
<?>
        Capabilities: [900] Secondary PCI Express
        Capabilities: [bb0] Physical Resizable BAR
        Kernel driver in use: nvidia
        Kernel modules: nouveau, nvidia_drm, nvidia

$ cat /proc/cmdline
initrd=\intel-ucode.img initrd=\initramfs-linux-zen.img [...] intel_iommu=on
iommu=pt nvidia-drm.modeset=1 rw nowatchdog

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