I have same display card and same problem here. xrandr can't detect any hdmi input, i am trying to connect a projector. Connection with vga is ok.
And while using nvidia-current driver, lspci -v output has something like this: 01:00.0 VGA compatible controller: NVIDIA Corporation GF106 [GeForce GT 555M] (rev ff) (prog-if ff) !!! Unknown header type 7f It did not show the kernel module. Please help, i want to fire this display card, this laptop and the engineers who are working on nvidia and developed silly optimus settings. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930587 Title: HDMI output To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930587/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs