Public bug reported: Hi,
I've installed Nvidia 450 on new installation of Ubuntu 20.04.1. Prime Render Offload works in manual mode with `__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia` But nvidia-settings says prime is not supported. And so I have no prime entry in the nvidia window. So I think the swith between integrated and nvidia GPU will not be automatic and the "on demand" does not work. I asked nvidia developpers and they said it should be a ubuntu patch : https://forums.developer.nvidia.com/t/prime-no-offloading-required-prime-is-it-supported/154181 **Computer :** Asus A17-TUF766IU-H7074T **OS Details :** Ubuntu 20.04.1 with mainline 5.8.8 kernel Nvidia Driver version : 450.66 Desktop Environment : Plasma Window Manager : KDE **Hardware Details** Processor : AMD Ryzen 4800H GPU : GeForce GTX 1660 Ti 6 Go meloli@Asus-A17:~$ __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia glxinfo | egrep "(OpenGL vendor|OpenGL renderer|OpenGL version)" OpenGL vendor string: NVIDIA Corporation OpenGL renderer string: GeForce GTX 1660 Ti/PCIe/SSE2 OpenGL version string: 4.6.0 NVIDIA 450.66 meloli@Asus-A17:~$ glxinfo | egrep "(OpenGL vendor|OpenGL renderer|OpenGL version)" OpenGL vendor string: X.Org OpenGL renderer string: AMD RENOIR (DRM 3.38.0, 5.8.8-050808-generic, LLVM 10.0.0) OpenGL version string: 4.6 (Compatibility Profile) Mesa 20.0.8 meloli@Asus-A17:~$ nvidia-settings (nvidia-settings:29678): GLib-GObject-CRITICAL **: 18:02:06.777: g_object_unref: assertion 'G_IS_OBJECT (object)' failed ERROR: nvidia-settings could not find the registry key file. This file should have been installed along with this driver at /usr/share/nvidia/nvidia-application-profiles-key-documentation. The application profiles will continue to work, but values cannot be prepopulated or validated, and will not be listed in the help text. Please see the README for possible values and descriptions. ** Message: 18:02:06.835: PRIME: No offloading required. Abort ** Message: 18:02:06.835: PRIME: is it supported? no ** Affects: nvidia-graphics-drivers-450 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1895327 Title: PRIME Render Offload "On-Demand" not supported To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-450/+bug/1895327/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
