Hi have an Apple Macbook Pro 9,2 (15", mid-2012).
I am successful in using the NVidia GPU together with bumblebee to get 3D acceleration on the internal screen.
My problem is to connect an external monitor. The laptop is equipped with a Thunderbolt port which also acts as a mini DisplayPort (as far as I understand). It works fine under Mac OS X.
In my last attempt, I have:
- installed kernel 3.11 (from Debian backports)
- installed the nvidia 331.20 proprietary drivers through the Debian packages
- plugged in my external monitor to the DP/TB port
- booted into this new kernel
- loaded the driver with modprobe nvidia-current
- ran nvidia-xconfig --query-gpu-info :
Name : GeForce GT 650M
PCI BusID : PCI:1:0:0
Number of Display Devices: 0
Note that in this attempt no X server is running on the GPU, I expect nvidia-config to not need it to detect the monitor (which is an Apple LED Cinema by the way, but I’ve tried with a VGA monitor and a DP-VGA adapter too).
Any idea how I could acces the external screen?
I attach the result of nvidia-bug-report.sh.
Kind regards, Thibaut.
nvidia-bug-report.log.gz (59.8 KB)