I had all this working wonderfully on a Thinkpad T480 on Ubuntu Disco, until a recent reboot after an update (possibly due to kernel 5.0.0-27, possibly due to a udev update)
bbswitch would fail to enable the card, with the following in dmesg: pci 0000:00:01.0: Refused to change power state, currently in D3 After a lot of futzing about and installing/reinstalling, the steps mentioned in the OP, #31, #32 and #35 worked, with the following change to bumblebee.conf: PMMethod=none I think that this means that my nvidia card is on all the time -- I'm not sure how to check its state with bbswitch disabled -- but I can at least run the desktop off of the Intel card, and games and such off of the nvidia card, which helps with stability and heat for me. (It's possible that I did something to change the acpi power management settings when booting the kernel, and those changes got blown up by the update.) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1758243 Title: bumblebee needs configuration changes to work with nvidia-driver-390 and libglvnd0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bumblebee/+bug/1758243/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
