Public bug reported: Relying on the nouveau driver and on the vga switcheroo (to get around a change in systemd LP: #1777099) caused increased power consumption, and slowed down the switching process.
Solving the problem in systemd (LP: #1777099), and adding code in gpu- manager and in nvidia-prime to unload the nvidia modules, and to allow the PCI device to sleep, dramatically decreases power consumption. ** Affects: nvidia-prime (Ubuntu) Importance: High Assignee: Alberto Milone (albertomilone) Status: In Progress ** Affects: ubuntu-drivers-common (Ubuntu) Importance: High Assignee: Alberto Milone (albertomilone) Status: In Progress ** Affects: nvidia-prime (Ubuntu Bionic) Importance: High Assignee: Alberto Milone (albertomilone) Status: In Progress ** Affects: ubuntu-drivers-common (Ubuntu Bionic) Importance: High Assignee: Alberto Milone (albertomilone) Status: In Progress ** Also affects: nvidia-prime (Ubuntu Bionic) Importance: Undecided Status: New ** Also affects: ubuntu-drivers-common (Ubuntu) Importance: Undecided Status: New ** Changed in: nvidia-prime (Ubuntu Bionic) Status: New => In Progress ** Changed in: ubuntu-drivers-common (Ubuntu) Status: New => In Progress ** Changed in: ubuntu-drivers-common (Ubuntu Bionic) Status: New => In Progress ** Changed in: nvidia-prime (Ubuntu Bionic) Assignee: (unassigned) => Alberto Milone (albertomilone) ** Changed in: ubuntu-drivers-common (Ubuntu) Assignee: (unassigned) => Alberto Milone (albertomilone) ** Changed in: ubuntu-drivers-common (Ubuntu Bionic) Assignee: (unassigned) => Alberto Milone (albertomilone) ** Changed in: nvidia-prime (Ubuntu Bionic) Importance: Undecided => High ** Changed in: ubuntu-drivers-common (Ubuntu) Importance: Undecided => High ** Changed in: ubuntu-drivers-common (Ubuntu Bionic) Importance: Undecided => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1778011 Title: PRIME Power Saving mode draws too much power To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1778011/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs