This bug also affects me. I am running Kubuntu 18.04 on Gigabyte AERO14, CPU:i7-7700HQ (45W TDP), GPU:Nvidia 1050Ti
I took a full system image with clonezilla, and tested Alberto Milone's PPA. System working fine after the upgrade. I tested switch+reboot around 20 times. Test results: No issue rebooting with or without switching GPU. GPU Switching: Switching GPU is now much faster. Even if i use it from nvidia gui, I get the popup window asking to reboot right away. system shutdown/reboot after I switch gpu is fast. Usual 5~10 seconds, same time it takes when I am not switching gpu. Power usage - Nvidia mode: powertop reports around 30w idle (cpu load:2~3%, gpu ops/sec:0) Power usage - Intel mode: powertop reports around 20w idle (cpu load:2~3%, gpu ops/sec:0) - Device stats report usage of 100% of the Nvidia 1050 in powertop, not sure if accurate. I hope it helps. Cheers, Mauro -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-prime in Ubuntu. https://bugs.launchpad.net/bugs/1778011 Title: PRIME Power Saving mode draws too much power Status in nvidia-prime package in Ubuntu: In Progress Status in ubuntu-drivers-common package in Ubuntu: In Progress Status in nvidia-prime source package in Bionic: In Progress Status in ubuntu-drivers-common source package in Bionic: In Progress Bug description: 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1778011/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
