Created attachment 179030 [details] Log file from OpenMandriva SUMMARY NVIDIA performance in Plasma Wayland is very hitchy, even in Plasma 6.3.2 STEPS TO REPRODUCE 1. Login to Plasma 2. Move stuff around OBSERVED RESULT Desktop movement is very jittery & stuttery. Areas where blur is expected is just transparent. EXPECTED RESULT Movement should be smooth SOFTWARE/OS VERSIONS Operating System: OpenMandriva ROME 25.02 KDE Plasma Version: 6.3.2 KDE Frameworks Version: 6.11.0 Qt Version: 6.8.2 Kernel Version: 6.14.0-desktop-0.rc4.2omv2590 (64-bit) Graphics Platform: Wayland Processors: 6 × AMD Ryzen 9 5900X 12-Core Processor Memory: 15.6 GiB of RAM Graphics Processor: NVIDIA GeForce RTX 4060/PCIe/SSE2 Manufacturer: QEMU Product Name: Standard PC (Q35 + ICH9, 2009) System Version: pc-q35-8.2 ADDITIONAL INFORMATION NVIDIA: 570.124.04 $ sudo dmesg | grep -E "nvidia|drm|fb" [ 0.000000] Command line: BOOT_IMAGE=/@boot/vmlinuz-6.14.0-desktop-0.rc4.2omv2590 root=UUID=05e5305b-99e0-46cc-a1f8-6b49c85565ae ro rootflags=subvol=@ nouveau.modeset=0 nvidia-drm.modeset=1 nvidia-drm.fbdev=1 quiet splash logo.nologo audit=0 rd.timeout=120 dm_mod.use_blk_mq=1 rd.systemd.show_status=0 systemd.show_status=0 [ 0.000001] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.018842] PM: hibernation: Registered nosave memory: [mem 0xf0000000-0xfeffbfff] [ 0.021670] Kernel command line: BOOT_IMAGE=/@boot/vmlinuz-6.14.0-desktop-0.rc4.2omv2590 root=UUID=05e5305b-99e0-46cc-a1f8-6b49c85565ae ro rootflags=subvol=@ nouveau.modeset=0 nvidia-drm.modeset=1 nvidia-drm.fbdev=1 quiet splash logo.nologo audit=0 rd.timeout=120 dm_mod.use_blk_mq=1 rd.systemd.show_status=0 systemd.show_status=0 [ 0.874248] fbcon: Taking over console [ 1.831268] ACPI: bus type drm_connector registered [ 3.521370] systemd[1]: Starting modprobe@drm.service - Load Kernel Module drm... [ 3.532890] systemd[1]: modprobe@drm.service: Deactivated successfully. [ 3.533013] systemd[1]: Finished modprobe@drm.service - Load Kernel Module drm. [ 4.092149] nvidia: loading out-of-tree module taints kernel. [ 4.092158] nvidia: module license 'NVIDIA' taints kernel. [ 4.092162] nvidia: module verification failed: signature and/or required key missing - tainting kernel [ 4.092163] nvidia: module license taints kernel. [ 4.524183] nvidia-nvlink: Nvlink Core is being initialized, major device number 236 [ 4.529216] nvidia 0000:07:00.0: vgaarb: VGA decodes changed: olddecodes=io+mem,decodes=none:owns=none [ 4.580883] nvidia_modeset: no symbol version for nvidia_get_rm_ops [ 4.594955] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 570.124.04 Tue Feb 25 03:39:21 UTC 2025 [ 4.598553] [drm] [nvidia-drm] [GPU ID 0x00000700] Loading driver [ 5.994173] [drm] Initialized nvidia-drm 0.0.0 for 0000:07:00.0 on minor 0 [ 5.994227] nvidia 0000:07:00.0: vgaarb: deactivate vga console [ 567.838060] nvidia_uvm: module uses symbols nvUvmInterfaceDupAddressSpace from proprietary module nvidia, inheriting taint. [ 567.864923] nvidia-uvm: Loaded the UVM driver, major device number 234. https://forum.openmandriva.org/t/nvidia-4060-wayland-performance-being-very-laggy/6746
Hi - just to make sure I'm reading the info correctly, is the session with poor performance on a QEMU virtual machine, hosted on a device with a desktop NVIDIA card?
🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME. For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging. Thank you for helping us make KDE software even better for everyone!
Created attachment 179926 [details] attachment-3087825-0.html Yes, but the NVIDIA card is being used by the VM via GPU passthrough The host system uses AMD On Tue, Mar 18, 2025 at 00:09, John Kizer <[bugzilla_noreply@kde.org](mailto:On Tue, Mar 18, 2025 at 00:09, John Kizer <<a href=)> wrote: > https://bugs.kde.org/show_bug.cgi?id=500936 > > John Kizer <john.kizer@proton.me> changed: > > What |Removed |Added > ---------------------------------------------------------------------------- > Status|REPORTED |NEEDSINFO > Resolution|--- |WAITINGFORINFO > CC| |john.kizer@proton.me > > --- Comment #1 from John Kizer <john.kizer@proton.me> --- > Hi - just to make sure I'm reading the info correctly, is the session with poor > performance on a QEMU virtual machine, hosted on a device with a desktop NVIDIA > card? > > -- > You are receiving this mail because: > You reported the bug.
Got it - the linked distro forum thread mentions that you can't replicate the issue in Neon, Kubuntu or Arch. Is there an indication that this is an upstream KDE or steps that can reproduce the issue on a different distribution? Thanks!
🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.