Hi again! I posted a question in the Nvidia developer forums and was made aware of this <http://sourceforge.net/p/darktable/mailman/darktable-users/thread/CANz0AchwpTTZB0mRtFiyY-uj-XcNnwNk3HyQ9ugb_wL3DdejBA%40mail.gmail.com/#msg32641742> thread on the Darktable list, which I had not found before. It suggested installing the nvidia-modprobe package, which among other things makes shure the nvidia-uvm module is loaded. So I started from scratch with a fresh install of Mint 17, added xorg-edgers ppa and installed the Nvidia-340-driver with Driver Manager, then
--- sudo apt-get install nvidia-settings nvidia-opencl-icd-340 nvidia-340-uvm nvidia-libopencl1-340 nvidia-prime sudo apt-get install nvidia-cuda-toolkit --- And then I installed nvidia-modprobe, downloaded from http://packages.ubuntu.com/utopic/nvidia-modprobe. After a reboot this actually worked. But I am not completely happy with the Nvidia-Prime way of doing things, having to switch card in Nvidia-Settings and then rebooting (logging off and on didn't work). I would prefer to use Bumblebee, so I tried to install it again, with nvidia-modprobe. This is what I did: ------------------- sudo add-apt-repository ppa:bumblebee/stable sudo apt-get update sudo apt-get install bumblebee bumblebee-nvidia primus nvidia-340 nvidia-340-uvm nvidia-lib opencl1-340 sudo apt-get install nvidia-cuda-toolkit Checked that /etc/bumblebee/bumblebee.conf was correct: Driver=nvidia KernelDriver=nvidia-340 PMMethod=auto # colon-separated path to the nvidia libraries LibraryPath=/usr/lib/nvidia-340:/usr/lib32/nvidia-340 # comma-separated path of the directory containing nvidia_drv.so and the # default Xorg modules path XorgModulePath=/usr/lib/nvidia-340/xorg,/usr/lib/xorg/modules XorgConfFile=/etc/bumblebee/xorg.conf.nvidia Installed nvidia-modprobe again Reinstalled bbswitch-dkms according to this tip <http://www.themukt.com/2014/06/13/howto-install-nvidia-331-bumblebee-optimus-cards-ubuntu/> . Rebooted. ------------------ After all that I ran "optirun darktable -d opencl", and I got back the "could not get platforms: -1001" error! And "lsmod | grep nvidia" while darktable is running shows that only the nvidia module is loaded, and not nvidia-uvm. So I wonder: Have I missed something here? Or isn't it possible to use nvidia-modprobe with Bumblebee? Hans Petter http://hpbirkeland.com 2014-10-30 16:07 GMT+01:00 Hans Petter Birkeland <[email protected]>: > Pascal, > thank you for your input. There are no options in my BIOS for disabling > graphics, so I can't do that. As for HDMI, I don't use an external monitor > for editing. I don't yet know if my use of HDMI will be affected, it's a > minor concern anyway. Right now I only hope that someone with specific > knowledge of the phrase '[opencl_init] could not get platforms: -1001' will > comment. Meanwhile I continue my research. > > Hans Petter > > http://hpbirkeland.com > > 2014-10-30 15:45 GMT+01:00 Pascal Obry <[email protected]>: > >> Le jeudi 30 octobre 2014 à 15:07 +0100, Hans Petter Birkeland a écrit : >> > Michael, >> > I don't understand what you mean. One can not use Bumblebee without a >> > driver. When installing Bumblebee and Bumblebee-nvidia, the Nvidia 304 >> > driver is installed by default. This driver has no support for my GTX >> > 850M card, so I have to use 337 or newer. >> >> I come late into the discussion and I did not read the whole thread... >> sorry if this has already been said. >> >> I've tried Bumblebee some time ago and was able to make it working with >> my Debian box. But the HDMI was not working properly, so no external >> screen for my photo editing. I'm using a big external screen when >> editing my pictures, so it was not an option. >> >> I decided to disable the Intel card directly from the BIOS and using >> only the NVDIA proprietary driver. With such configuration you do not >> need Bumblebee at all. If your BIOS make this possible you should >> consider using this option. >> >> This dual card thing is to save power... Well maybe, without using this >> power saving mode my notebook still run for 3h on the battery. >> I've recently tried to use nvidia-prime (equivalent to Bumblebee but >> only available on Ubuntu) on a Ubuntu box of a friend. I must say that >> the configuration was painful and even if the HDMI output displays >> something I've never been able to setup the primary vs secondary screen >> properly. That is, the external screen was forced to be the primary >> one... All this to say that this Optimus support is not quite ready for >> standard used on GNU/Linux. >> >> A. Just wanted to share my experiences. >> >> Regards, >> >> -- >> Pascal Obry / Magny Les Hameaux (78) >> >> The best way to travel is by means of imagination >> >> http://v2p.fr.eu.org >> http://www.obry.net >> >> gpg --keyserver keys.gnupg.net --recv-key F949BD3B >> >> >> >> ------------------------------------------------------------------------------ >> _______________________________________________ >> Darktable-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/darktable-users >> > >
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