Under linux mint debian edition, with two GTX780 in sli, and three monitors (two on the first card, one on the second, like under windows in surroung gaming mode).
I’m using the driver 331.20
I’ve tried different setups (all monitors on the first card, sli mosaic, twinview, xinerama, …) and for every setup, I’ve no 3D acceleration, except when I activate only one monitor and sli.
But I haven’t found any setup to have three monitors working with 3D acceleration under linux with my two cards in SLI.
All is running well under windows 8.1 on the same box.
I don’t know how to setup my system to have some 3D accellaration on my three monitors.
Hey nse, I currently have a GTX590, and it doesn’t let me do twinview in the nvidia control panel for more than two monitors. (Apparently it has two GPUs in it, and the twinview can’t span across multiple GPUs)
But you’re able to set up twinview for all 3 monitors? That’s great, because I just ordered a new GTX780 and I’m hoping that it solves my twinview problem.
You could activate up to four monitors on one GTX780, but without 3D acceleration, or in a way I don’t know. with the two cards, I think I could connect up to 8 monitors, but haven’t tested, due to a lack of monitors :)
I was having two GTX560Ti before, and have replaced them because I’ve read that having monitors connected to two cards disable the 3D acceleration in linux. I can now say that I’m unable to have 3D acceleration even when the 3 monitors are connected to the same card.
previous config have been generated by :
nvidia-xconfig --sli=Mosaic --metamodes=“GPU-0.DFP-0: 1920x1080+0+0, GPU-0.DFP-3: 1920x1080+1920+0, GPU-0.DFP-1: 1920x1080+3840+0”
and then nvidia-settings
you should notice that sli is setted to “Off” by nvidia-settings ???