I just tested Ubuntu 22.04 and I can confirm it fixes the issue.
First, used 22.04 with the current mutter version available in jammy-
updates:
user1@U-20CG3JVH1ALS3:~$ sudo apt-cache policy mutter-common libmutter-10-0
gir1.2-mutter-10
[sudo] password for user1:
mutter-common:
Installed: 42.9-0ubuntu1
Candidate: 42.9-0ubuntu1
Version table:
*** 42.9-0ubuntu1 500
500 http://sa-east-1.ec2.archive.ubuntu.com/ubuntu jammy-updates/main
amd64 Packages
100 /var/lib/dpkg/status
42.0-3ubuntu2 500
500 http://sa-east-1.ec2.archive.ubuntu.com/ubuntu jammy/main amd64
Packages
libmutter-10-0:
Installed: 42.9-0ubuntu1
Candidate: 42.9-0ubuntu1
Version table:
*** 42.9-0ubuntu1 500
500 http://sa-east-1.ec2.archive.ubuntu.com/ubuntu jammy-updates/main
amd64 Packages
100 /var/lib/dpkg/status
42.0-3ubuntu2 500
500 http://sa-east-1.ec2.archive.ubuntu.com/ubuntu jammy/main amd64
Packages
gir1.2-mutter-10:
Installed: 42.9-0ubuntu1
Candidate: 42.9-0ubuntu1
Version table:
*** 42.9-0ubuntu1 500
500 http://sa-east-1.ec2.archive.ubuntu.com/ubuntu jammy-updates/main
amd64 Packages
100 /var/lib/dpkg/status
42.0-3ubuntu2 500
500 http://sa-east-1.ec2.archive.ubuntu.com/ubuntu jammy/main amd64
Packages
And I do hit the error when trying to revert after changing the scale:
Jul 24 17:03:37 U-20CG3JVH1ALS3 gnome-shell[3048]: Failed to use linear monitor
configuration: Invalid mode 800x600 (-nan) for monitor 'unknown unknown'
Jul 24 17:03:37 U-20CG3JVH1ALS3 gnome-shell[3048]: Failed to use fallback
monitor configuration: Invalid mode 800x600 (-nan) for monitor 'unknown unknown'
Jul 24 17:03:37 U-20CG3JVH1ALS3 gnome-shell[3048]: Impossible to set scaling on
crtc 59 to 1.000000, error id 2
Jul 24 17:03:38 U-20CG3JVH1ALS3 gnome-shell[3048]: Xlib: extension "DPMS"
missing on display ":1".
Then, I upgraded to package from -proposed:
user1@U-20CG3JVH1ALS3:~$ sudo apt-cache policy mutter-common libmutter-10-0
gir1.2-mutter-10
[sudo] password for user1:
mutter-common:
Installed: 42.9-0ubuntu4
Candidate: 42.9-0ubuntu4
Version table:
*** 42.9-0ubuntu4 500
500 http://archive.ubuntu.com/ubuntu jammy-proposed/main amd64 Packages
100 /var/lib/dpkg/status
42.9-0ubuntu1 500
500 http://sa-east-1.ec2.archive.ubuntu.com/ubuntu jammy-updates/main
amd64 Packages
42.0-3ubuntu2 500
500 http://sa-east-1.ec2.archive.ubuntu.com/ubuntu jammy/main amd64
Packages
libmutter-10-0:
Installed: 42.9-0ubuntu4
Candidate: 42.9-0ubuntu4
Version table:
*** 42.9-0ubuntu4 500
500 http://archive.ubuntu.com/ubuntu jammy-proposed/main amd64 Packages
100 /var/lib/dpkg/status
42.9-0ubuntu1 500
500 http://sa-east-1.ec2.archive.ubuntu.com/ubuntu jammy-updates/main
amd64 Packages
42.0-3ubuntu2 500
500 http://sa-east-1.ec2.archive.ubuntu.com/ubuntu jammy/main amd64
Packages
gir1.2-mutter-10:
Installed: 42.9-0ubuntu4
Candidate: 42.9-0ubuntu4
Version table:
*** 42.9-0ubuntu4 500
500 http://archive.ubuntu.com/ubuntu jammy-proposed/main amd64 Packages
100 /var/lib/dpkg/status
42.9-0ubuntu1 500
500 http://sa-east-1.ec2.archive.ubuntu.com/ubuntu jammy-updates/main
amd64 Packages
42.0-3ubuntu2 500
500 http://sa-east-1.ec2.archive.ubuntu.com/ubuntu jammy/main amd64
Packages
And now the error is no longer logged and I can successfully revert:
Jul 24 17:07:49 U-20CG3JVH1ALS3 gnome-shell[3166]: Impossible to set scaling on
crtc 59 to 1.000000, error id 2
Jul 24 17:07:49 U-20CG3JVH1ALS3 gnome-shell[3166]: Impossible to set scaling on
crtc 59 to 1.000000, error id 2
Jul 24 17:07:49 U-20CG3JVH1ALS3 gnome-shell[3166]: Window manager warning:
Scalig CRTC 59 at 1.000000 failed
Jul 24 17:07:49 U-20CG3JVH1ALS3 gnome-shell[3166]: Impossible to set scaling on
crtc 61 to 1.000000, error id 2
Jul 24 17:07:49 U-20CG3JVH1ALS3 gnome-shell[3166]: Window manager warning:
Scalig CRTC 61 at 1.000000 failed
Jul 24 17:07:49 U-20CG3JVH1ALS3 gnome-shell[3166]: Impossible to set scaling on
crtc 63 to 1.000000, error id 2
Jul 24 17:07:49 U-20CG3JVH1ALS3 gnome-shell[3166]: Window manager warning:
Scalig CRTC 63 at 1.000000 failed
Jul 24 17:07:49 U-20CG3JVH1ALS3 gnome-shell[3166]: Impossible to set scaling on
crtc 65 to 1.000000, error id 2
Jul 24 17:07:49 U-20CG3JVH1ALS3 gnome-shell[3166]: Window manager warning:
Scalig CRTC 65 at 1.000000 failed
Scalig CRTC 65 at 1.000000 failed
(The errors above can be ignored for now as their are a known problem
with Xdcv, which is further explained in comment #16)
Marking as verification-done
** Tags removed: verification-needed verification-needed-jammy
** Tags added: verification-done verification-done-jammy
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https://bugs.launchpad.net/bugs/2020782
Title:
Xdcv: Changing display scale setting and reverting it fails
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