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 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