*** This bug is a duplicate of bug 1874567 ***
    https://bugs.launchpad.net/bugs/1874567

I agree with Chris:  This current bug (#1875017) is not a duplicate of
bug #1874567 :)

Since updating from 19.10 to 20.20, I'm getting the same issue as Chris:

I have two monitors, both connected to an Nvidia RTX-2080Ti: The primary
monitor is landscape; the secondary monitor is rotated portrait right.

When I set my second monitor to "Orientation = Portrait Right" in
Settings, the rotation settings take effect, and the second monitor
displays in the correct orientation.  However, the error is that panning
and tracking are now enabled (this is not the expected behaviour!)

Here's a little video demonstrating the problem:
https://photos.app.goo.gl/iGX7bKa3GQpF8ada6

Below, I'll show two outputs of `xrandr`:  The first output is after the
second monitor is rotated (note the 'panning' and 'tracking').  The
second output is when the second monitor is set to landscape (and
doesn't show panning or tracking).

## XRANDR AFTER SETTING ROTATION OF SECOND SCREEN TO PORTRAIT RIGHT

Screen 0: minimum 8 x 8, current 5760 x 2160, maximum 32767 x 32767
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected primary 3840x2160+499+0 (normal left inverted right x axis y 
axis) 621mm x 341mm panning 4560x2160+0+0 tracking 5760x2160+0+0 border 0/0/0/0
   3840x2160     60.00*+  59.94    50.00    30.00    29.97    23.98  
   1920x1080     60.00    59.94    50.00    29.97    23.98  
   1680x1050     59.95  
   1440x900      59.89  
   1280x1024     75.02    60.02  
   1280x960      60.00  
   1280x800      59.81  
   1280x768      59.87  
   1280x720      60.00    59.94    50.00  
   1152x864      75.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32    56.25  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    72.81    59.94    59.93  
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 connected 1200x1920+4339+0 left (normal left inverted right x axis y axis) 
518mm x 324mm panning 1920x1920+3840+0 tracking 5760x2160+0+0 border 0/0/0/0
   1920x1200     59.95*+  59.88  
   1920x1080     60.00    59.94    50.00    23.98  
   1600x1200     60.00  
   1280x1024     75.02    60.02  
   1280x720      60.00    59.94    50.00  
   1152x864      75.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    59.94    59.93  
DP-5 disconnected (normal left inverted right x axis y axis)
USB-C-0 disconnected (normal left inverted right x axis y axis)

## XRANDR WHEN BOTH SCREENS ARE SET TO PORTRAIT ROTATION

Screen 0: minimum 8 x 8, current 5760 x 2160, maximum 32767 x 32767
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y 
axis) 621mm x 341mm
   3840x2160     60.00*+  59.94    50.00    30.00    29.97    23.98  
   1920x1080     60.00    59.94    50.00    29.97    23.98  
   1680x1050     59.95  
   1440x900      59.89  
   1280x1024     75.02    60.02  
   1280x960      60.00  
   1280x800      59.81  
   1280x768      59.87  
   1280x720      60.00    59.94    50.00  
   1152x864      75.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32    56.25  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    72.81    59.94    59.93  
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 connected 1920x1200+3840+0 (normal left inverted right x axis y axis) 
518mm x 324mm
   1920x1200     59.95*+  59.88  
   1920x1080     60.00    59.94    50.00    23.98  
   1600x1200     60.00  
   1280x1024     75.02    60.02  
   1280x720      60.00    59.94    50.00  
   1152x864      75.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    59.94    59.93  
DP-5 disconnected (normal left inverted right x axis y axis)
USB-C-0 disconnected (normal left inverted right x axis y axis)

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https://bugs.launchpad.net/bugs/1875017

Title:
  primary display size is wrong when 2nd display is rotated

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