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Although a little of topic for a 3D printing site I ran into a problem with one of my new open-source machines running the new Ubuntu 14.04 and wanted to make sure I got my solution out there. I purchased a new Asus Nvidia Geforce GT 730 card for the box and wanted to make sure the box was taking advantage of the new cards drivers.
First I ran the command “lshw -c video” from the terminal window.
there is a bunch of info but the line your interested in starts “Configuration Driver =” If you have something like Driver=Nouveau then you are still using the CPU and not the drivers for your card.
OK If you have to change things to update to a driver here are the steps –
First download the latest driver to your download directory by going to terminal window and executing this in my case..
or go to Nvidia download page
change the file name to be less of a pain.
“sudo rename NVIDIA-Linux-*-340.32.run nvidia.run”
then make sure you give rights to use it
“sudo chmod +x nvidia.run”
for cleanup execute –
“echo options nouveau modset-0 | sudo tee -a /etc/modprobe.d/nouvrau-kms.conf”
“update -initramfs -u”
** that was cleanup.. don’t freakout if you get a file not found error
OK now restart your box
login and then use ctl + Alt + f1 to go to terminal and do the following
first turn off video with execute
“sudo stop lightdm”
now go to download directory and run the install
** Follow all the instructions and except the defaults.
start the lightdm service
“sudo start lightdm”
restart your box and you’ll be ready to verify by going to terminal again and executing
“lshw -c video”
if the line looks like this with “configuration: driver=nvidia latency=0” you are good to go!!!!!
*** notes about driver – I found the driver had issues with FireFox browser where pages blinked a lot while rendering. You can fix this by going to “Preferences” then “Advanced” and then under browsing turn off “Use hardware acceleration when available,”