Il 27/01/2025 19:09, Dieter Faulbaum ha scritto:

Hello Fabio,

Fabio Fantoni <fantonifa...@tiscali.it> writes:

...
You have not finished the check for differences...
Sorry I don't understand what you mean.
I checked cinnamon and gnome (under X11 and wayland) and KDE plasma (under X11 and wayland).
What do you mean, that I can more for "check for differences"?
Should I check xfce (as an example) or more DEs?

... if different drivers are used, different screen settings, so it's likely to find the cause.
If drivers and screen setting are identical, so can be a regression in one component updated used by both gnome and cinnamon (in that case it would be useful to check the logs for the package list updated on the day the regression appeared).
The lists of 2025-01-25 (with ls -lrt /var/lib/dpkg/info/*.list | grep '2025-01-25'|grep -E 'cinnam|gnome|kde'): -rw-r--r-- 1 root root    4539 2025-01-25 10:55:25 /var/lib/dpkg/info/cinnamon.list -rw-r--r-- 1 root root   11759 2025-01-25 10:55:25 /var/lib/dpkg/info/cinnamon-settings-daemon.list -rw-r--r-- 1 root root    1149 2025-01-25 10:55:26 /var/lib/dpkg/info/cinnamon-session.list -rw-r--r-- 1 root root   14279 2025-01-25 10:55:26 /var/lib/dpkg/info/cinnamon-desktop-data.list -rw-r--r-- 1 root root   42576 2025-01-25 10:55:26 /var/lib/dpkg/info/cinnamon-common.list -rw-r--r-- 1 root root     567 2025-01-25 10:55:27 /var/lib/dpkg/info/gir1.2-cinnamondesktop-3.0:amd64.list -rw-r--r-- 1 root root     595 2025-01-25 10:55:27 /var/lib/dpkg/info/libcinnamon-desktop4t64:amd64.list -rw-r--r-- 1 root root   51417 2025-01-25 10:55:28 /var/lib/dpkg/info/cinnamon-l10n.list -rw-r--r-- 1 root root    1123 2025-01-25 10:55:28 /var/lib/dpkg/info/cinnamon-session-common.list -rw-r--r-- 1 root root   24028 2025-01-25 10:55:30 /var/lib/dpkg/info/gnome-themes-extra-data.list -rw-r--r-- 1 root root     521 2025-01-25 10:55:30 /var/lib/dpkg/info/gnome-themes-extra:amd64.list -rw-r--r-- 1 root root  224716 2025-01-25 10:55:38 /var/lib/dpkg/info/gnome-accessibility-themes.list -rw-r--r-- 1 root root    9204 2025-01-25 10:55:38 /var/lib/dpkg/info/gnome-characters.list -rw-r--r-- 1 root root    1603 2025-01-25 10:55:39 /var/lib/dpkg/info/gnome-video-effects.list -rw-r--r-- 1 root root     349 2025-01-25 10:55:41 /var/lib/dpkg/info/libgnome-autoar-0-0:amd64.list -rw-r--r-- 1 root root    2687 2025-01-25 10:55:43 /var/lib/dpkg/info/qml6-module-org-kde-newstuff.list the one from 2025-01-26 (with ls -lrt /var/lib/dpkg/info/*.list | grep '2025-01-26'|grep -E 'cinnam|gnome|kde') gives an empty list

These are only DE strict packages but full stack for DE and graphic part is huge.

If you don't have enough experience I think is difficult to debug or bisect with some mails.

One simple thing to check was screen settings, I already saw can be different on installation with multiple DE.

Another thing I saw using gdm as login manager is that force start of some gnome components and can override cinnamon settings even if never logged in gnome session since boot but only cinnamon, to exclude it I think is good to use lightdm as login manager instead.

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