The path to this issue for me is different. I installed this laptop originally with 19.04 and nvidia-435 (possibly post installation?) and all was well upon upgrade to 19.10 and later on to 20.04.
Upgrading to 20.04 kept the nvidia-435 driver and this bug did not manifest. Today I upgraded the driver to nvidia-440 via `ubuntu-driver install` and the issue started happening - the gpu is still powered up even though I rebooted into intel. I switched back and forth using `prime- select`. I tried reverting back to nvidia-435 to no avail. I can apply the "fix" via powertop (it does `echo 'auto' > '/sys/bus/pci/devices/0000:01:00.0/power/control';`) and I can confirm this shuts down the GPU properly and cuts power usage dramatically, until next boot. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877727 Title: Nvidia dGPU active despite prime-select set to Intel card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1877727/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
