It's been 3 weeks since I updated Ubuntu from 14.04 to 16.04, and I still can't use my graphic card normally. I remembered too late that I installed manually my drivers during the setup of my previous version. My upgrading wiped that custom install.
I can't use a second screen (it's not detected), and I can't play. I'm rewriting my question today to document all this and save time for somebody else. As far as I know, it may be just impossible for now to make my graphic card work with Ubuntu 16.
I have a Lenovo Thinkpad T440P,
lspci | grep VGA returns this:
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06) 02:00.0 VGA compatible controller: NVIDIA Corporation GK208M [GeForce GT 730M] (rev a1)
sudo lshw -c video returns this:
*-display UNCLAIMED description: VGA compatible controller product: GK208M [GeForce GT 730M] vendor: NVIDIA Corporation physical id: 0 bus info: pci@0000:02:00.0 version: a1 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vga_controller bus_master cap_list configuration: latency=0 resources: memory:f0000000-f0ffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:3000(size=128) memory:f1000000-f107ffff *-display UNCLAIMED description: VGA compatible controller product: 4th Gen Core Processor Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 06 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list configuration: latency=0 resources: memory:f1400000-f17fffff memory:e0000000-efffffff ioport:4000(size=64)
I have two graphic cards, but installing nvidia-prime don't do anything to the problem.
When I install Nvidia plugin (from the Nvidia website), I can't connect to my computer.
At first I was using lightdm, and I was stuck in this login loop. Then I switched to my usual gdm, and now I can't even try to login, I get a weird unstable tty terminal, which I have to keep awake with regular Ctrl + Alt + F1 (or F3 ???).
The way out is to type
sudo apt-get purge nvidia* and reboot. And then I'm back to the first point, with a working computer but with only one screen. I'm a web developper and this is surprisingly annoying.
Not much. The driver I downloaded is
NVIDIA-Linux-x86_64-367.35.run and it was out on the 2016.7.15. My main strategy now is to wait for the next version.
I also used the graphics-drivers ppa way suggested by Stormlord, same result.
I tried everything from this post, and I don't know, maybe I should try randomly other versions of the official plugin.
*-display UNCLAIMED part of the return of
sudo lshw -c video is another thing to clarify. Seems like something that need a working plugin to be solved.
I will not downgrade to 14.04. Everything else is working well, I keep working on my computer and I need it to continue.
Edit 23/8/16 I just tried the plugin nvidia-370, from the additional plugins app. Same result.