SUMMARY Under vram exhaustion scenarios, windows, menus, etc, will all fail to render. Windows show only titlebar and become completely transparent. The following errors in the log: Jun 30 21:37:51 graviton.localdomain kwin_wayland_wrapper[50295]: src/nv_gbm.c:99: GBM-DRV error (nv_gbm_bo_create): DRM_IOCTL_NVIDIA_GEM_ALLOC_NVKMS_MEMORY failed (ret=-1) Jun 30 21:37:51 graviton.localdomain kernel: [drm:nv_drm_gem_alloc_nvkms_memory_ioctl [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to allocate NVKMS memory for GEM object Jun 30 21:37:51 graviton.localdomain kwin_wayland_wrapper[50295]: Error getting buffer STEPS TO REPRODUCE 1. Run KDE Wayland with Nvidia driver 2. Open applications/games/etc to exhaust vram 3. Attempt to manipulate other windows, minimize/maximize, attempt to open the start menu, etc, they won't render on the screen OBSERVED RESULT Windows render only titlebar, no content. Start menu on the desktop gains the blue tick like it's opened, but not visible EXPECTED RESULT Windows/menus/etc work and are visible SOFTWARE/OS VERSIONS Linux/KDE Plasma: Fedora 38 KDE Plasma Wayland KDE Plasma Version: plasma-workspace-wayland-5.27.6-1.fc38.x86_64 KDE Frameworks Version: kde-runtime-17.08.3-26.fc38.x86_64 Qt Version: qt5-qtwayland-5.15.10-1.fc38.x86_64 ADDITIONAL INFORMATION Even after vram is freed up, the windows need to be minimized/maximized again for them to be visible. Not sure if other stuff is broken elsewhere in the stack by this behavior. The windows still accept input, despite the broken compositing.
> Windows/menus/etc work and are visible I don't think that's possible. If an application can't allocate buffers, there's nothing for KWin to show. I'm a bit confused how you get invisible windows though - without new buffers, applications can't resize windows.
Yeah, it's really weird, I get the titlebar and border, but everything else is invisible for chrome, might be due to it being a GTK application. The start menu just doesn't render anything though
This is now quite old and very driver centric. Please reopen if an issue remains.
Wait, what? What version did you attempt with?
Please elaborate on the configuration you used, I'm using the current versions in the Fedora repos, but I would like to retest with your environment
There's nothing we can do about this. Please report the problem to NVidia
Gotcha, ty!