Kubuntu 18.10 | NVIDIA & Nouveau drivers aren't working properly

[Jonas Gamao]

Hey Charlie,

I actually reported something like this<https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1767228> back when I upgraded to Ubuntu 18.04 from 17.10.  Only difference was that I never saw the PKCS#7 error thing.  I can still get to SDDM, though I can't see anything other than the mouse cursor (with nvidia-340). I can login if I switch to LightDM, but Plasma gets all wonky after that.

Jonas
________________________________
From: kubuntu-devel <kubuntu-devel-bounces at lists.ubuntu.com> on behalf of Charlie <home at charlieluna.com>
Sent: October 14, 2018 5:06 PM
To: Kubuntu Developer Discussion
Subject: Re: Kubuntu 18.10 | NVIDIA & Nouveau drivers aren't working properly

damn, that sounds like a hot mess. sounds like a bug report's due on that.

Charlie Luna

On Oct 14, 2018, at 11:56, Jonas Gamao <techxgames at outlook.com<mailto:techxgames at outlook.com>> wrote:

Hi,

On my Lenovo Z40 laptop (Intel Core i7-4510U, 16GB RAM, GeForce 820M), both Nouveau and NVIDIA drivers aren't working.  And I did double check if secure boot is disabled.

When I have nvidia-driver-396 and have the NVIDIA driver enabled, "PKCS#7 signature not signed with a trusted key" error keeps getting spammed in separate TTYs.  In addition, nvidia-xconfig doesn't see the GPU and had to be manually entered in xorg.conf.  Finally, the audio is choppy/laggy.  All of that is stopped when I disable NVIDIA driver with NVIDIA Prime.

With nvidia-340 or nouveau (the ones in the recommended list), it is unusable. The error "PKCS#7 signature not signed with a trusted key" keeps getting spammed and it won't even let me get to SDDM.  Also, NVIDIA Prime doesn't seem to work with nvidia-340 because I still experience the same problem.

I honestly hope this gets fixed soon.

Jonas
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