I run Xvfb with command:
Xvfb :1 -screen 0 100x100x16 -fbdir /tmp
And it's working fine. I can connect via VNC, and now under
/tmp directory I have
Xvfb_screen0 binary file.
I thought it will act like
/dev/fb0 so I tried to change its settings with fbset like:
sudo fbset -fb /tmp/Xvfb_screen0 -xres 500 -yres 500
But the command finishes with error:
ioctl FBIOGET_VSCREENINFO: Inappropriate ioctl for device
Is there any way to change running Xvfb server resolution?