What one would see from terminal (pkexec ls works fine)

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 175, in 
activate_name_owner
    return self.get_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 361, in get_name_owner
    's', (bus_name,), **keywords)
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in 
call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NameHasNoOwner: Could 
not get owner of name 'com.ubuntu.ScreenResolution.Mechanism': no such name

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/share/screen-resolution-extra/nvidia-polkit.py", line 75, in 
<module>
    operation_status = main(options)
  File "/usr/share/screen-resolution-extra/nvidia-polkit.py", line 42, in main
    conf = get_xkit_service()
  File "/usr/share/screen-resolution-extra/nvidia-polkit.py", line 33, in 
get_xkit_service
    service_object = dbus.SystemBus().get_object(SERVICE_NAME, OBJECT_PATH)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 241, in get_object
    follow_name_owner_changes=follow_name_owner_changes)
  File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 248, in __init__
    self._named_service = conn.activate_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 180, in 
activate_name_owner
    self.start_service_by_name(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 278, in 
start_service_by_name
    'su', (bus_name, flags)))
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 651, in 
call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ExecFailed: 
Cannot launch daemon, file not found or permissions invalid

ERROR: Unable to open X config file '/etc/X11/xorg.conf' for writing.

** Changed in: nvidia-settings (Ubuntu)
       Status: Incomplete => New

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-settings in Ubuntu.
https://bugs.launchpad.net/bugs/1822937

Title:
  NVIDIA settings won't write to /etc/xorg

Status in nvidia-settings package in Ubuntu:
  New

Bug description:
  I tried running it with root (`sudo nvidia-settings`) and without.

  I also generated an xorg file with `nvidia-xconfig`, and do the same
  thing, but it still won't work.

  ProblemType: Bug
  DistroRelease: Ubuntu 19.04
  Package: nvidia-settings 418.56-0ubuntu1
  ProcVersionSignature: Ubuntu 5.0.0-8.9-generic 5.0.1
  Uname: Linux 5.0.0-8-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.10-0ubuntu23
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Wed Apr  3 00:33:48 2019
  InstallationDate: Installed on 2019-04-02 (0 days ago)
  InstallationMedia: Kubuntu 19.04 "Disco Dingo" - Alpha amd64 (20190326.1)
  SourcePackage: nvidia-settings
  UpgradeStatus: No upgrade log present (probably fresh install)

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