The second patch included in gnome-42. KK use gnome-43 and LL use
gnome-44 as base, both of distribution had the second patch.

** Description changed:

  [Impact]
  gnome-control-center crashed when switching to mirror mode and monitors don't 
have matched resolution
  
  [Test case]
  1. Connected monitors to system which don't have same resolution.
  2. Switch to mirror mode through gnome-control-center
  3. gnome-control-center won't crash
  
  [Where problems could occur]
- It only modified the code related to mirror mode in Displays panel. And won't 
affect other part. The risk will be low.
+ It only modified the code related to mirror mode in Displays panel. For KK 
and LL check variable (best_mode) before using it. For Jammy, modified the way 
to find cloning mode and check the variable (best_mode) . The second patch 
already included in gnome-42. The risk will be low.
  
  [Other info]
  Two Merge Request are related
  1. Check best_mode exist before adding flag 
(https://gitlab.gnome.org/GNOME/gnome-control-center/-/merge_requests/1835)
  2. Use virtual clone modes when mirroring  
(https://gitlab.gnome.org/GNOME/gnome-control-center/-/merge_requests/1376)

** Changed in: gnome-control-center (Ubuntu)
       Status: Incomplete => Confirmed

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https://bugs.launchpad.net/bugs/2026228

Title:
  gnome-control-center crashed when switching to mirror mode and
  monitors don't have matched resolution

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