import fcntl
import struct


FBIOGET_VSCREENINFO = 0x4600


with open('/dev/fb0', 'r+b') as fb:
    fb_var_screeninfo = '12sL9I'
    var_info = fcntl.ioctl(fb, FBIOGET_VSCREENINFO, struct.pack(fb_var_screeninfo, b'', 0, *[0]*9))

    xres, yres, xres_virtual, yres_virtual, xoffset, yoffset, bits_per_pixel = struct.unpack('7I', var_info[:28])
    print(xres)
    print(yres)
    print(bits_per_pixel)