HOW to set up DOSBOX in Linux mint?

Question

DOS

The essence is this on Linux mint I installed Dosbox, it works flawlessly in the window, however, when switching to full-screen mode, the picture does not increase in windows, there was no such problem.
Here is the config file:
[sdl]
fullscreen=false
fulldouble=true
fullresolution=original
windowresolution=original
output=opengl
autolock=true
sensitivity=100
waitonerror=true
priority=higher,normal
mapperfile=mapper-0.74.map
usescancodes=true

[dosbox]
language =
machine=svga_nolfb
captures=capture
memsize=16

[render]
frameskip=0
aspect=false
scaler=super2xsal

[cpu]
core=normal
cputype=auto
cycles=auto
cycleup=10
cycledown=20

[mixer]
nosound=false
rate=44100
blocksize=1024
prebuffer=20

[midi]
mpu401=intelligent
mididevice=default
midiconfig=

[sblaster]
sbbase=220
irq=7
dma=1
hdma=5
sbmixer=true
oplmode=auto
oplemu=default
oplrate=44100

[gus]
gus=false
gusrate=44100
gusbase=240
gusirq=5
gusdma=3
ultradir=C:\ULTRASND

[speaker]
pcspeaker= true
prate=44100
tandy=auto
tandyrate=44100
disney=true

[serial]
serial1=dummy
serial2=dummy
serial3=disabled
serial4=disabled

[dos]
xms=true
ems=true
umb=true
keyboardlayout=auto

[ipx]
ipx=false