Did you check whether the Nvidia kernel drivers got installed at all? If your system has a different graphics adapter for display I would assume they are not.
What does lsmod | egrep nvidia tell you? If no driver was loaded, try /sbin/modprobe nvidia as root and test whether things have improved. As written in one of my earlier mails you should first test with a simple test program like clInfo which you can run as root and as a normal user. Ulrich Am 28.04.2014 05:05, schrieb Adam Gold: > Pascal, > > I tried your suggestions however: > - my bios doesn't provide for switchable graphics > - the packages you recommended were not found. I added the xorg edgers > PPA plus I have the usual ubuntu repos enabled > - so I wasn't able to get any further. > > One thing I'm pretty sure about: Optimus is not enabled even when I try > to install it. I ran /usr/bin/nvidia-settings from the command line and > got the following message: > > ** (nvidia-settings:3951): WARNING **: PRIME: Failed to execute child > process "/usr/bin/prime-supported" (No such file or directory) > ** Message: PRIME: is it supported? no > Segmentation fault (core dumped) > > I've seen this reported as a bug on one of the linux launchpad message > threads. > > My guess this is more of the ongoing saga of Linux and graphics drivers, > it's clear not a DT specific issue. The graphics drivers have always > been the biggest downer for me about using Linux - not that I'm blaming > the devs, they've just been dealt a tough hand to deal with given the > reluctance of the GPU manufacturers to colaborate. > > Adam > > > On 25/04/14 08:27, Pascal Obry wrote: >> >> Adam, >> >> IIRC I had almost everything working using Bumblebee. My only problem >> was that I was not able to use my external screen (AdobeRGB) with the >> HDMI cable. >> >> I took some note when I had installed/setup everything, it may help. Oh >> my computer is Dell M4800 and I'm using GNU/Debian on the unstable >> branch. >> >> My card is: VGA compatible controller: NVIDIA Corporation GK107GLM >> [Quadro K1100M] (rev a1) >> >> My current solution (as I really need to use my external screen) has >> been to disable the switchable graphics and to use exclusively the >> NVIDIA card, that is the intel integarted one is not used anyway. >> >>> 1. Enable BIOS switchable graphics >>> >>> 2. apt-get purge nvidia-* >>> >>> 3. apt-get install bumblebee nvidia-kernel-dkms glx-alternative-nvidia >>> nvidia-glx >>> >>> 4. delete xorg.conf (no nvidia setting here) >>> >>> After that, I just had to do: >>> >>> update-alternatives --config glx >>> (select mesa) >>> >>> For OpenCL on bumblebee: >>> >>> 5 apt-get install nvidia-cuda-toolkit nvidia-opencl-icd >>> >>> ------------ >>> remove: >>> >>> 1. apt-get purge bbswitch-dkms bumblebee nvidia-glx primus primus-lib socat >>> >>> 2. reboot and disable Switchable graphics in the BIOS >>> >>> 3. apt-get install nvidia-kernel-dkms >>> >>> >>> Problem >>> ----------- >>> >>> Second screen HDMI not working with optimus. >> >> Please, post us informed if you make progress or have better setup to >> share. >> >> Thanks, >> ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available. Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
