xrandr을 활용하여 가상모니터를 추가하려했지만, 가상모니터 지원이 불가능했다.
[jimo@localhost ~/programs/deskreen]$ lspci | grep -i vga
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (rev 02)
확장시켜보자.
sudo yum install xorg-x11-server-Xvfb
sudo vim /etc/X11/xorg.conf.d/20-dummy.conf
# 내용
Section "Device"
Identifier "Configured Video Device"
Driver "dummy"
EndSection
Section "Monitor"
Identifier "Configured Monitor"
EndSection
Section "Screen"
Identifier "Default Screen"
Device "Configured Video Device"
Monitor "Configured Monitor"
SubSection "Display"
Depth 24
Modes "1920x1080"
EndSubSection
EndSection
이후 재부팅. 가상디스플레이가 정상적으로 설정되었다.