Comment 598 for bug 1690085

(In reply to T X from comment #509)
> I haven't built a kernel in about decade, but if you provide step-by-step
> instructions for how to do so, I'll attempt to build the patched kernel and
> then post the dmesg.

Ok, here we go:

1. Clone stable kernel from here if you haven't done so yet:

$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

2. checkout 4.20 branch

$ git checkout -b 4.20-stable origin/linux-4.20.y

3. apply the attached patch

$ patch -p1 -i acpi-dump-cstates.diff

4. copy your 4.20 config

$ cp /boot/config-4.20.... .config

5. do

$ make oldconfig

6. build

$ make -j16

7. install kernel, needs root

# make modules_install install

# reboot

Then, select this new kernel in grub, boot it and upload full dmesg.

Thx.