download linux-image-unsigned-5.2.0-050200rc6-generic_5.2.0-050200rc6.201906222033_amd64.deb and linux-modules-5.2.0-050200rc6-generic_5.2.0-050200rc6.201906222033_amd64.deb
Then install them by:
sudo dpkg -i linux-modules-5.2.0-050200rc6-generic_5.2.0-050200rc6.201906222033_amd64.deb
sudo dpkg -i linux-image-unsigned-5.2.0-050200rc6-generic_5.2.0-050200rc6.201906222033_amd64.deb
Please test latest mainline kernel:
https:/ /kernel. ubuntu. com/~kernel- ppa/mainline/ v5.2-rc6/
download linux-image- unsigned- 5.2.0-050200rc6 -generic_ 5.2.0-050200rc6 .201906222033_ amd64.deb and linux-modules- 5.2.0-050200rc6 -generic_ 5.2.0-050200rc6 .201906222033_ amd64.deb
Then install them by: 5.2.0-050200rc6 -generic_ 5.2.0-050200rc6 .201906222033_ amd64.deb unsigned- 5.2.0-050200rc6 -generic_ 5.2.0-050200rc6 .201906222033_ amd64.deb
sudo dpkg -i linux-modules-
sudo dpkg -i linux-image-
after that, reboot