I installed evdi
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root@debian:~# apt search evdi
Sorting... Done
Full Text Search... Done
evdi-dkms/stable,now 1.6.0+dfsg-1 all [installed]
Extensible Virtual Display Interface driver kernel module
libevdi0/stable,now 1.6.0+dfsg-1 amd64 [installed]
Extensible Virtual Display Interface driver client library
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root@debian:~# lsmod | grep evdi
evdi 65536 0
drm_kms_helper 200704 3 evdi,nvidia_drm,i915
drm 483328 16 drm_kms_helper,evdi,nvidia_drm,i915
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jp@debian:~$ echo $XDG_SESSION_TYPE
x11
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jp@debian:~$ xrandr --listproviders
Providers: number : 1
Provider 0: id: 0x47 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 3 outputs: 5 associated providers: 0 name:modesetting
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jp@debian:~ xrandr
eDP-1 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 346mm x 194mm
...
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)
thank you