So right now, I have nvidia-driver-415 installed on my laptop, Lenovo Z40 with GeForce 820M, running on Kubuntu 18.10. It doesn’t seem to be running right because audio is unbearable. Running nvidia-xconfig, then rebooting causes the display to switch to a lower resolution.
Running the recommended driver, nvidia-340, will render my laptop unusuable. I was only able to see the cursor on a black screen.
I have also tried nvidia-390, but there’s a lag between the video output and the input (like the menu slow to open).
When I open up NVIDIA settings, I get this:
$ nvidia-settings ERROR: NVIDIA driver is not loaded ERROR: Unable to load info from any available system (nvidia-settings:10498): GLib-GObject-CRITICAL **: 10:43:52.764: g_object_unref: assertion 'G_IS_OBJECT (object)' failed ** Message: 10:43:52.769: PRIME: Requires offloading ** Message: 10:43:52.769: PRIME: is it supported? yes
In addition, I’m getting this message when I switch to NVIDIA driver: PKCS#7 signature not signed with a trusted key.
nvidia-bug-report.log.gz (90.2 KB)