I only had this in 18.4 and 20.4,but had not tried older versions after
noticed it.but i remembered in any previous version reboot was not
needed.
I found a github-repo describing the difference,but had not tested it
because it is not designed to be working on 20.4.only tried lightdm,but
no difference.
https://github.com/matthieugras/Prime-Ubuntu-18.04
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https://bugs.launchpad.net/bugs/1890404
Title:
prime-select needs reboot
Status in nvidia-prime package in Ubuntu:
New
Bug description:
in previous ubuntu versions (<18.4) it was posible to switch hybrid
graphics with only logout/login, but not with 18.4+ including 20.4
tried also with lightdm instead of gdm3, same result and more problems
(not working fingerprint, tap2click and larger cursor)
is it possible to select card by commandline (in grub) to avoid
rebooting after switching?
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: nvidia-prime 0.8.14
Uname: Linux 5.4.52-custom x86_64
ApportVersion: 2.20.11-0ubuntu27.4
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: GNOME-Flashback:GNOME
Date: Wed Aug 5 10:23:56 2020
Dependencies:
InstallationDate: Installed on 2020-04-27 (99 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
PackageArchitecture: all
SourcePackage: nvidia-prime
UpgradeStatus: No upgrade log present (probably fresh install)
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https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1890404/+subscriptions
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