meloli@Asus-A17:~$ apt-cache policy nvidia-driver-450
nvidia-driver-450:
Installé : 450.66-0ubuntu0.20.04.1
Candidat : 450.66-0ubuntu0.20.04.1
Table de version :
*** 450.66-0ubuntu0.20.04.1 500
500 http://ppa.launchpad.net/graphics-drivers/ppa/ubuntu focal/main
amd64 Packages
100 /var/lib/dpkg/status
** Tags added: focal
** Description changed:
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
+
+
+ meloli@Asus-A17:~$ apt-cache policy nvidia-driver-450
+ nvidia-driver-450:
+ Installé : 450.66-0ubuntu0.20.04.1
+ Candidat : 450.66-0ubuntu0.20.04.1
+ Table de version :
+ *** 450.66-0ubuntu0.20.04.1 500
+ 500 http://ppa.launchpad.net/graphics-drivers/ppa/ubuntu focal/main
amd64 Packages
+ 100 /var/lib/dpkg/status
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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
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