Public bug reported:
OS/software: Ubuntu Jammy Jellyfish (development branch), GNOME 42.beta, X11,
NVIDIA-driver-510 (510.54)
Hardware: Intel® Xeon(R) CPU E5-1650 v2 @ 3.50GHz × 12, 31,3 GiB RAM, NVIDIA
Corporation GP106 [GeForce GTX 1060 6GB]
How to reproduce: open glxgear, on the same workspace, move any window,
there is badly dragging lag. But there is no lag if move window on a
different workspace. CPU/GPU usages are normal (<3%).
Disable Sync to VBlank in NVIDIA Settings can solve this issue, but
CPU/GPU usages are abornmally high (single core CPU>80%, GPU>10% only
for glxgear).
Both NVIDIA-driver-510 and NVIDIA-driver-470 have the same issue. But
another Intel-GPU based laptop works fine.
This is not a glxgear bug, as other realtime 3D rendering (PyMOL,
Blender...) casue the same issue.
Possible reasons I guess: NVIDIA driver bug, kernel bug, or GNOME 42
bug.
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Tags: ubuntu22.04
** Summary changed:
- Window dragging lag when rendering 3d objects.
+ Window dragging lag when rendering 3d objects. (GNOME 42, NVIDIA)
** Summary changed:
- Window dragging lag when rendering 3d objects. (GNOME 42, NVIDIA)
+ Window dragging lag when rendering 3d objects. (GNOME 42, NVIDIA, glxgear,
pymol)
** Tags added: 22.04 ubuntu
** Tags removed: 22.04 ubuntu
** Tags added: ubuntu22.04
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https://bugs.launchpad.net/bugs/1964675
Title:
Window dragging lag when rendering 3d objects. (GNOME 42, NVIDIA,
glxgear, pymol)
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