Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: nvidia-prime (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1765556
Title:
nvidia-prime needs a reboot to switch between dGPU/hGPU
Status in nvidia-prime package in Ubuntu:
Confirmed
Bug description:
I previously used Ubuntu 16.04 and Nvidia 375 driver with a Nvidia
Geforce 635M and Sandy Bridge i7. To switch between the 2 Optimus
cards (Intel hybrid and Nvidia discrete), one had to go into nvidia-
settings, switch, logoff, login back, and the change was applied.
I now have a Nvidia Quadro M2000 and a Skylake Xeon which has some
Sync/Mux feature (whatever does that mean) with the Nvidia 390 driver.
First of all, installing nivida-prime doesn't install bbswitch-dkms.
Then, once the GPU switch is made, it triggers update-initramfs,
recompile the kernel modules, and one needs to reboot the system to
get the GPU change. Even when we install bbswitch-dkms.
So am I getting a wrong impression or is there something twisted here
?
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: nvidia-prime 0.8.7
ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
Uname: Linux 4.15.0-15-generic x86_64
ApportVersion: 2.20.9-0ubuntu4
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Apr 19 19:20:01 2018
Dependencies:
InstallationDate: Installed on 2018-04-08 (11 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180408)
PackageArchitecture: all
SourcePackage: nvidia-prime
UpgradeStatus: No upgrade log present (probably fresh install)
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