Created attachment 143140 [details]
dmesg 4.20.2-gentoo AMD Ryzen 5 2400G

dmesg of boot
- linux-firmware: 2019-01-14
- kernel: 4.20.2
- AMD Ryzen 5 2400G
- X11 driver: modeset
- Xorg Log: 
Modeline "1920x1200"x0.0  154.00  1920 1968 2000 2080  1200 1203 1209 1235
+hsync -vsync (74.0 kHz eP)