Slow graphics on i7-8700k UHD 630 ubuntu 16.04.3

Question

Recently installed Ubuntu to my new Build with 8700k but integrated graphics are dead slow. I almost cannot use the OS.

Any suggestions? Try Ubuntu 17?

Answer 1

Thanks to @Puneet from the screen rendering of 17.10 with intel i5-8400 is really slow

Ubuntu 17.10 is currently shipping kernel version 4.13. But the graphics driver for 8th generation coffee lake processors are merged in kernel mainline for version 4.15. (source)

Currently you can install 4.15 kernel Ubuntu builds to fix the graphics issue.

Download these debian packages

mkdir -p ~/linux_4.15 && cd ~/linux_4.15
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/2018-01-01/linux-headers-4.15.0-999-generic_4.15.0-999.201801010200_amd64.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/2018-01-01/linux-headers-4.15.0-999_4.15.0-999.201801010200_all.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/2018-01-01/linux-image-4.15.0-999-generic_4.15.0-999.201801010200_amd64.deb
dpkg -i *.deb
sudo update-grub
sudo reboot

It actually works fine for me with Ubuntu 16.04 too.