it's a kernel bug
Test a newer mainline kernel from
http://kernel.ubuntu.com/~kernel-ppa/mainline/
v4.11 and if it's still bad, try drm-next. Download linux-image-...-generic...amd64.deb and install manually, then reboot.
it's a kernel bug
Test a newer mainline kernel from
http:// kernel. ubuntu. com/~kernel- ppa/mainline/
v4.11 and if it's still bad, try drm-next. Download linux-image- ...-generic. ..amd64. deb and install manually, then reboot.