sudo apt install xserver-xorg-video-dummy
/etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="nomodeset"
sudo update-grub2
/usr/share/X11/xorg.conf.d/xorg.conf
create xorg.conf
Section "Device"
Identifier "Configured Video Device"
Driver "dummy"
VideoRam 256000
EndSection
Section "Monitor"
Identifier "Configured Monitor"
HorizSync 5.0 - 1000.0
VertRefresh 5.0 - 200.0
ModeLine "1920x1080" 148.50 1920 2448 2492 2640 1080 1084 1089 1125 +Hsync +Vsync
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1920x1080"
EndSubSection
EndSection
