I've been experiencing a black screen after waking up from suspend on Ubuntu 18.04.
While looking for a solution, I found that for some people the issue was the nouveau driver. I thought "that can't be it" since I don't even have a dedicated graphics card (just the integrated of an i7 8550U). However, I checked the output of
$ dpkg -l | grep -i nouveau ii libdrm-nouveau2:amd64 2.4.97-1ubuntu1~18.04.1 amd64 Userspace interface to nouveau-specific kernel DRM services -- runtime ii libdrm-nouveau2:i386 2.4.97-1ubuntu1~18.04.1 i386 Userspace interface to nouveau-specific kernel DRM services -- runtime ii xserver-xorg-video-nouveau-hwe-18.04 1:1.0.16-1~18.04.1 amd64 X.Org X server -- Nouveau display driver
Hence, I'm wondering what these are needed for and if I should keep or remove them?