HI Doug, it could be hardware dependent although my two Optimus laptops are very mainstream (both Quadro). It's more likely to be configuration (I hope) How do you achieve modeset=1? How do you confirm that you have Prime Sync working? I use xrandr --verbose | grep PRIME
regards Tim On 27 August 2017 at 00:19, Doug McMahon <1706...@bugs.launchpad.net> wrote: > As far as hybrid (optimus) machines maybe this is hardware dependent? > On all mine (660m, 775m, 940m) nvidia modeset=1 & Prime Synchronization > work just fine, 16.04.3 thru 17.10. > In 16.04.3 obviously using lightdm, in 17.10 using gdm3. > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1706474 > > Title: > gdm3 nvidia modeset=1 is broken, external screens don't work > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1706474/+subscriptions > -- Tim Richardson -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/1706474 Title: gdm3 nvidia modeset=1 is broken, external screens don't work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1706474/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
