gnome detects 2 displays on mac book pro

[pappu ashok]

I Installed ubuntu on my mac book pro and it detects 2 displays. I have to use arandr to turn off the other display. I did not connect any external displays just using my old mac book pro.

lsb_release -rd
Description: Ubuntu 20.04 LTS
Release: 20.04

please let me know if you need any more information
thank you
Ashok pappu

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome (not installed)
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
Uname: Linux 5.4.0-26-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia wl
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun Apr 26 12:45:40 2020
InstallationDate: Installed on 2020-04-25 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: meta-gnome3
UpgradeStatus: No upgrade log present (probably fresh install)

[pappu ashok (ashokpappu)]

work around is to use arandr to adjust it