I'm running an Nvidia GT750M card on a laptop with a haswell processor. The integrated graphics on the processor does everything graphics-related - in fact I'm having difficulty getting the Nvidia card recognised. I'm running Ubuntu 14.04 and I've tried driver downloads from the usual ppas like xorg-edgers and X-swat as well as installing the relevant opencl packages such as nvidia-opencl-icd. Needless to say, OpenCl is not working with DT.
My understanding is the underlying problem is that the Nvidia Optimus technology which is designed to switch automatically between integrated graphics and discrete GPUs - and which runs on my card - has not been made available for linux. There appears to be work on an intermediate solution called Bumblebee. A while ago I had OpenCL working with DT on Ubuntu 12.04 and the speed increase was awesome. I'd love to do it again but right now it seems prohibitively complex. I've done a lot of reading on the web but most of it's about the task of getting the Optimus set-up working in general as opposed to OpenCL and DT (although the former is a pre-requisite of the latter). This page was particularly informative: http://wiki.belmankraul.com/linux/mint16_bumblebee . However then on certain other pages, I read that Bumblebee isn't needed for OpenCL, just for 3D rendering. I'm wondering if anyone has any *specific* DT + OpenCL experiences to share which involve using a recent Nvidia GPU and Ubuntu release. ------------------------------------------------------------------------------ Start Your Social Network Today - Download eXo Platform Build your Enterprise Intranet with eXo Platform Software Java Based Open Source Intranet - Social, Extensible, Cloud Ready Get Started Now And Turn Your Intranet Into A Collaboration Platform http://p.sf.net/sfu/ExoPlatform _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
