** Description changed:

- * monitors.xml in Ubuntu 22.04, and 23.04 (GNOME) is starting with `<monitors 
version="2">`, while in Ubuntu MATE 22.04, and 23.04 it is starting with 
`<monitors version="1">`
- * The monitors.xml file name is defined here for MATE: 
https://github.com/mate-desktop/mate-desktop/blob/master/libmate-desktop/mate-rr-config.c#L44,
 and here for GNOME: 
https://gitlab.gnome.org/GNOME/mutter/-/issues/2919#note_1799008
+ * "$HOME/.config/monitors.xml" is not installed by default in Ubuntu during 
the installation at this writing, you have to generate it by running the GUI 
preferences `$ gnome-control-center display` for GNOME, and `$ 
mate-display-properties` for MATE.
+ * Both GNOME and MATE can be run on the same distro, which causes 
compatibility issues with monitors.xml: monitors.xml in Ubuntu 22.04, and 23.04 
(GNOME) is starting with `<monitors version="2">`, while in Ubuntu MATE 22.04, 
and 23.04 it is starting with `<monitors version="1">`
+ * The monitors.xml file name for MATE is defined at 
https://github.com/mate-desktop/mate-desktop/blob/master/libmate-desktop/mate-rr-config.c#L44,
 and for GNOME it is defined at 
https://gitlab.gnome.org/GNOME/mutter/-/issues/2919#note_1799008.
  
  #### Expected behaviour
  cinnamon is using a dedicated name, cinnamon-monitors.xml. This doesn't cause 
the file to be overwritten by the display preferences if other desktop 
environment are used on the same distro. If MATE and GNOME followed the same 
approach, the file name would be mate-monitors.xml, and gnome-monitors.xml, 
respectively.
  
  #### Actual behaviour
  monitors.xml in Ubuntu 23.04, and 22.04:
  
  ```
  <monitors version="2">
    <configuration>
      <logicalmonitor>
        <x>0</x>
        <y>0</y>
        <scale>1</scale>
        <primary>yes</primary>
        <monitor>
          <monitorspec>
            <connector>Virtual-1</connector>
            <vendor>unknown</vendor>
            <product>unknown</product>
            <serial>unknown</serial>
          </monitorspec>
          <mode>
            <width>1600</width>
            <height>900</height>
            <rate>60.000</rate>
          </mode>
        </monitor>
      </logicalmonitor>
    </configuration>
  </monitors>
  ```
  
  monitors.xml in Ubuntu 22.04 (with ubuntu-mate-desktop installed), or
  23.04 (with ubuntu-mate-desktop installed):
  
  ```
  <monitors version="2">
    <configuration>
      <migrated/>
      <logicalmonitor>
        <x>0</x>
        <y>0</y>
        <primary>yes</primary>
        <monitor>
          <monitorspec>
            <connector>Virtual-1</connector>
            <vendor>???</vendor>
            <product>0x0000</product>
            <serial>0x00000000</serial>
          </monitorspec>
          <mode>
            <width>1600</width>
            <height>900</height>
            <rate>60.000</rate>
          </mode>
        </monitor>
      </logicalmonitor>
    </configuration>
    <configuration>
      <logicalmonitor>
        <x>0</x>
        <y>0</y>
        <scale>1</scale>
        <primary>yes</primary>
        <monitor>
          <monitorspec>
            <connector>Virtual-1</connector>
            <vendor>unknown</vendor>
            <product>unknown</product>
            <serial>unknown</serial>
          </monitorspec>
          <mode>
            <width>1280</width>
            <height>800</height>
            <rate>59.810</rate>
          </mode>
        </monitor>
      </logicalmonitor>
    </configuration>
  </monitors>
  ```
  
  monitors.xml in Ubuntu MATE 22.04, Ubuntu MATE 23.04, ubuntu-mate-desktop 
from Ubuntu 22.04, or ubuntu-mate-desktop from Ubuntu 23.04:
  ```
  <monitors version="1">
    <configuration>
        <clone>no</clone>
        <output name="Virtual-1">
            <vendor>???</vendor>
            <product>0x0000</product>
            <serial>0x00000000</serial>
            <width>1600</width>
            <height>900</height>
            <rate>60</rate>
            <x>0</x>
            <y>0</y>
            <rotation>normal</rotation>
            <reflect_x>no</reflect_x>
            <reflect_y>no</reflect_y>
            <primary>yes</primary>
        </output>
        <output name="Virtual-2">
        </output>
        <output name="Virtual-3">
        </output>
        <output name="Virtual-4">
        </output>
    </configuration>
  </monitors>
  ```
  
  #### Steps to reproduce the behaviour
- Both GNOME and MATE can be installed on the same distro. Both DEs are 
installing "$HOME/.config/monitors.xml" via manually configured display GUI 
preferences:
- * GNOME via `$ gnome-control-center display`
- * MATE via `$ mate-display-properties`
- 
- Steps I used to reproduce the issue in Ubuntu 22.04 (as a virtual machine):
+ Steps I used to reproduce the issue in Ubuntu 22.04 with ubuntu-mate-desktop 
installed:
  * Log into GNOME
  * Ubuntu comes with GNOME, so install MATE in addition: `sudo apt-get install 
mate-desktop-environment-extras mate-desktop-environment`
- * Run `$ gnome-control-center display`, change the "Resolution" to 1600x900, 
click on the "Apply": This will 1) generate "$HOME/.config/monitors.xml", 2) 
[Screenshot_ubuntu-22.04-desktop-amd64.iso-clone_2023-07-24_23_43_56](/uploads/dc4ba73ddfae955fcafa948e3a164581/Screenshot_ubuntu-22.04-desktop-amd64.iso-clone_2023-07-24_23_43_56.png).
 Close the window.
+ * Log out, and log in to MATE.
+ * Run `$ mate-display-properties`, just click on the "Apply" button (you 
don't have to click on the "Keep this configuration" button that pop-ups in the 
dialoge-box), it will generate "$HOME/.config/monitors.xml"
+ * Log out from MATE. From the display manager, log into GNOME.
+ * As you can see, the screen resolution (1600x900 configured in MATE) not 
used by GNOME 
(https://github.com/mate-desktop/mate-control-center/assets/6416073/1b978bd7-22dd-4b42-a5b5-d32ec2d42f21),
 instead a fallback resolution is used.
+ * Run `$ gnome-control-center display`, change the "Resolution" to 1600x900, 
click on the "Apply": This will 1) move "$HOME/.config/monitors.xml" (that was 
generated by MATE) to "$HOME/.config/monitors-v1-backup.xml" 2) generate a new 
"$HOME/.config/monitors.xml" 3) Change the screen resolution directly 
(https://github.com/mate-desktop/mate-control-center/assets/6416073/6a841086-6936-4a21-9d43-ca1a605a9806).
 Close the window.
  * Log out from GNOME. From the display manager, log into MATE.
- * As you can see, the [screen resolution (1600x900 configured in GNOME) not 
used by 
MATE](https://github.com/mate-desktop/mate-control-center/assets/6416073/adffa08e-cf08-499d-8dc3-9e7800e4d7e9),
 instead a fallback resolution is used.
- * Run `$ mate-display-properties`, just click on the "Apply" button (you 
don't have to click on the "Keep this configuration" button that pop-ups in the 
dialoge-box), it will overwrite "$HOME/.config/monitors.xml"
- * Log out from MATE. From the display manager, log into GNOME.
- * As you can see, 
[Screenshot_ubuntu-22.04-desktop-amd64.iso-clone_2023-07-24_23_40_11](/uploads/013b2b1abf582caf7e6c4c70733ea5ac/Screenshot_ubuntu-22.04-desktop-amd64.iso-clone_2023-07-24_23_40_11.png),
 instead a fallback resolution is used.
+ * As you can see, the screen resolution (1600x900 configured in GNOME) not 
used by MATE 
(https://github.com/mate-desktop/mate-control-center/assets/6416073/adffa08e-cf08-499d-8dc3-9e7800e4d7e9),
 instead a fallback resolution is used.
+ 
+ MATE does not generate a backup file of monitors.xml if you run the
+ above steps and starting with MATE first.
+ 
+ # MATE general version
+ 1.26.0
+ 
+ # Package version
+ 1.26.0
+ 
+ # Linux Distribution
+ Ubuntu MATE 22.04, Ubuntu 22.04
  
  ## Links to bug reports
  [Feature request] mate-display-properties: Please upgrade monitors.xml from 
<monitors version="1"> to <monitors version="2"> - 
https://bugs.launchpad.net/ubuntu/+bug/2028818
  GNOME https://gitlab.gnome.org/GNOME/mutter/-/issues/2919
  MATE https://github.com/mate-desktop/mate-control-center/issues/712
  
  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: gnome-control-center 1:41.7-0ubuntu0.22.04.6
  ProcVersionSignature: Ubuntu 5.19.0-43.44~22.04.1-generic 5.19.17
  Uname: Linux 5.19.0-43-generic x86_64
  ApportVersion: 2.20.11-0ubuntu82.5
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Jul 24 01:24:22 2023
  InstallationDate: Installed on 2023-04-17 (97 days ago)
  InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 
(20220419)
  SourcePackage: gnome-control-center
  UpgradeStatus: No upgrade log present (probably fresh install)

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to mutter in Ubuntu.
https://bugs.launchpad.net/bugs/2028469

Title:
  Use less generic name for monitors.xml to avoid clashing with other
  desktops

Status in Mutter:
  New
Status in mutter package in Ubuntu:
  Opinion

Bug description:
  * "$HOME/.config/monitors.xml" is not installed by default in Ubuntu during 
the installation at this writing, you have to generate it by running the GUI 
preferences `$ gnome-control-center display` for GNOME, and `$ 
mate-display-properties` for MATE.
  * Both GNOME and MATE can be run on the same distro, which causes 
compatibility issues with monitors.xml: monitors.xml in Ubuntu 22.04, and 23.04 
(GNOME) is starting with `<monitors version="2">`, while in Ubuntu MATE 22.04, 
and 23.04 it is starting with `<monitors version="1">`
  * The monitors.xml file name for MATE is defined at 
https://github.com/mate-desktop/mate-desktop/blob/master/libmate-desktop/mate-rr-config.c#L44,
 and for GNOME it is defined at 
https://gitlab.gnome.org/GNOME/mutter/-/issues/2919#note_1799008.

  #### Expected behaviour
  cinnamon is using a dedicated name, cinnamon-monitors.xml. This doesn't cause 
the file to be overwritten by the display preferences if other desktop 
environment are used on the same distro. If MATE and GNOME followed the same 
approach, the file name would be mate-monitors.xml, and gnome-monitors.xml, 
respectively.

  #### Actual behaviour
  monitors.xml in Ubuntu 23.04, and 22.04:

  ```
  <monitors version="2">
    <configuration>
      <logicalmonitor>
        <x>0</x>
        <y>0</y>
        <scale>1</scale>
        <primary>yes</primary>
        <monitor>
          <monitorspec>
            <connector>Virtual-1</connector>
            <vendor>unknown</vendor>
            <product>unknown</product>
            <serial>unknown</serial>
          </monitorspec>
          <mode>
            <width>1600</width>
            <height>900</height>
            <rate>60.000</rate>
          </mode>
        </monitor>
      </logicalmonitor>
    </configuration>
  </monitors>
  ```

  monitors.xml in Ubuntu 22.04 (with ubuntu-mate-desktop installed), or
  23.04 (with ubuntu-mate-desktop installed):

  ```
  <monitors version="2">
    <configuration>
      <migrated/>
      <logicalmonitor>
        <x>0</x>
        <y>0</y>
        <primary>yes</primary>
        <monitor>
          <monitorspec>
            <connector>Virtual-1</connector>
            <vendor>???</vendor>
            <product>0x0000</product>
            <serial>0x00000000</serial>
          </monitorspec>
          <mode>
            <width>1600</width>
            <height>900</height>
            <rate>60.000</rate>
          </mode>
        </monitor>
      </logicalmonitor>
    </configuration>
    <configuration>
      <logicalmonitor>
        <x>0</x>
        <y>0</y>
        <scale>1</scale>
        <primary>yes</primary>
        <monitor>
          <monitorspec>
            <connector>Virtual-1</connector>
            <vendor>unknown</vendor>
            <product>unknown</product>
            <serial>unknown</serial>
          </monitorspec>
          <mode>
            <width>1280</width>
            <height>800</height>
            <rate>59.810</rate>
          </mode>
        </monitor>
      </logicalmonitor>
    </configuration>
  </monitors>
  ```

  monitors.xml in Ubuntu MATE 22.04, Ubuntu MATE 23.04, ubuntu-mate-desktop 
from Ubuntu 22.04, or ubuntu-mate-desktop from Ubuntu 23.04:
  ```
  <monitors version="1">
    <configuration>
        <clone>no</clone>
        <output name="Virtual-1">
            <vendor>???</vendor>
            <product>0x0000</product>
            <serial>0x00000000</serial>
            <width>1600</width>
            <height>900</height>
            <rate>60</rate>
            <x>0</x>
            <y>0</y>
            <rotation>normal</rotation>
            <reflect_x>no</reflect_x>
            <reflect_y>no</reflect_y>
            <primary>yes</primary>
        </output>
        <output name="Virtual-2">
        </output>
        <output name="Virtual-3">
        </output>
        <output name="Virtual-4">
        </output>
    </configuration>
  </monitors>
  ```

  #### Steps to reproduce the behaviour
  Steps I used to reproduce the issue in Ubuntu 22.04 with ubuntu-mate-desktop 
installed:
  * Log into GNOME
  * Ubuntu comes with GNOME, so install MATE in addition: `sudo apt-get install 
mate-desktop-environment-extras mate-desktop-environment`
  * Log out, and log in to MATE.
  * Run `$ mate-display-properties`, just click on the "Apply" button (you 
don't have to click on the "Keep this configuration" button that pop-ups in the 
dialoge-box), it will generate "$HOME/.config/monitors.xml"
  * Log out from MATE. From the display manager, log into GNOME.
  * As you can see, the screen resolution (1600x900 configured in MATE) not 
used by GNOME 
(https://github.com/mate-desktop/mate-control-center/assets/6416073/1b978bd7-22dd-4b42-a5b5-d32ec2d42f21),
 instead a fallback resolution is used.
  * Run `$ gnome-control-center display`, change the "Resolution" to 1600x900, 
click on the "Apply": This will 1) move "$HOME/.config/monitors.xml" (that was 
generated by MATE) to "$HOME/.config/monitors-v1-backup.xml" 2) generate a new 
"$HOME/.config/monitors.xml" 3) Change the screen resolution directly 
(https://github.com/mate-desktop/mate-control-center/assets/6416073/6a841086-6936-4a21-9d43-ca1a605a9806).
 Close the window.
  * Log out from GNOME. From the display manager, log into MATE.
  * As you can see, the screen resolution (1600x900 configured in GNOME) not 
used by MATE 
(https://github.com/mate-desktop/mate-control-center/assets/6416073/adffa08e-cf08-499d-8dc3-9e7800e4d7e9),
 instead a fallback resolution is used.

  MATE does not generate a backup file of monitors.xml if you run the
  above steps and starting with MATE first.

  # MATE general version
  1.26.0

  # Package version
  1.26.0

  # Linux Distribution
  Ubuntu MATE 22.04, Ubuntu 22.04

  ## Links to bug reports
  [Feature request] mate-display-properties: Please upgrade monitors.xml from 
<monitors version="1"> to <monitors version="2"> - 
https://bugs.launchpad.net/ubuntu/+bug/2028818
  GNOME https://gitlab.gnome.org/GNOME/mutter/-/issues/2919
  MATE https://github.com/mate-desktop/mate-control-center/issues/712

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: gnome-control-center 1:41.7-0ubuntu0.22.04.6
  ProcVersionSignature: Ubuntu 5.19.0-43.44~22.04.1-generic 5.19.17
  Uname: Linux 5.19.0-43-generic x86_64
  ApportVersion: 2.20.11-0ubuntu82.5
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Jul 24 01:24:22 2023
  InstallationDate: Installed on 2023-04-17 (97 days ago)
  InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 
(20220419)
  SourcePackage: gnome-control-center
  UpgradeStatus: No upgrade log present (probably fresh install)

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