(In reply to Matthias Fulz from comment #159) > Yep the problem is bbswitch. Just deinstall it, make sure the power mode for > nvidia gpu and hdmi sound are set to auto and unload the nvidia & > nvidia_modeset modules. > > bbswitch will still lead to the lockups, if used.
Awesome! Blacklisting the modules, then setting runtime power management to auto for everything in powertop put the power usage down to about 8W. Loading the modules back up again manually puts the power usage back up, and unloading them back down, without having to use bbswitch at all. Do you know if it's possible to, with an X session that started up without the nvidia modules loaded, then turn those modules on and use that GPU with "__NV_PRIME_RENDER_OFFLOAD=1 __VK_LAYER_NV_optimus=NVIDIA_only __GLX_VENDOR_LIBRARY_NAME=nvidia "$@"" (the PRIME render offload in the recent drivers). I've so far not had any success :( -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-390 in Ubuntu. https://bugs.launchpad.net/bugs/1803179 Title: System does not reliably come out of suspend To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1803179/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
