Comment 40 for bug 1774950

Anyone else experiencing this bug might also want to test out the kernel that @kaihengfeng has kindly put together with the patch from Rafael. It's in his post (#35) but here's the link:
https://people.canonical.com/~khfeng/lp1774950/

It'll be interesting to check that it fixes suspend issues for other folks too. The only thing I've noticed so far is that it makes a weird click sound through the speakers as it goes into suspend (probably when it switches them off) but that is a small price to pay for a working suspend function!

- I downloaded all the files, put them in a folder called KernelFix and then opened up a terminal. I changed directory ( cd /Downloads/KernelFix ) and then used sudo dpkg -i to install them.

- I'm fairly incompetent so tried sudo dpkg -i linux-image-unsigned-4.15.0-24-generic_4.15.0-24.26~lp1774950_amd64.deb first which told me I needed to install the modules.

- I installed both module .debs using sudo dpkg -i and then installed the kernel again just to be sure.

Anyway, that seems to have worked for me and I'm now running Kubuntu 18.04 with a 4.15 kernel and suspend works fine!