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**tenplus1** · May 07, 2025, 11:20 PM

A fresh install or 25.10 worked fine on my main desktop, my only issue was that Adaptive Sync was enabled by default and caused the screen to flicker black during the boot into the Try or Install screen, this should be OFF by default to let the user enable it if needed.

**NoWorries** · May 20, 2025, 01:06 AM

While Questing Quokka has a few months to go before its release, there are for me two applications which totally fail. The first is Kdenlive:

Code:

:~$ kdenlive
kdenlive: error while loading shared libraries: libopentimelineio.so: cannot open shared object file: No such file or directory

The second is Kazam which can be launched but after finishing and saving the recorded video, no image or sound is recorded. The startup for Kazam is only shown below.

Code:

~$ kazam
WARNING Kazam - Failed to correctly detect operating system.

** (kazam:11995): WARNING **: 16:14:28.859: Binding '<Super><Ctrl>R' failed!

** (kazam:11995): WARNING **: 16:14:28.859: Binding '<Super><Ctrl>F' failed!

** (kazam:11995): WARNING **: 16:14:28.859: Binding '<Super><Ctrl>P' failed!

** (kazam:11995): WARNING **: 16:14:28.859: Binding '<Super><Ctrl>W' failed!

** (kazam:11995): WARNING **: 16:14:28.859: Binding '<Super><Ctrl>Q' failed!

(kazam:11995): libayatana-appindicator-WARNING **: 16:14:28.864: libayatana-appindicator is deprecated. Please use libayatana-appindicator-glib in newly written code.
/usr/lib/python3/dist-packages/kazam/app.py:145: Warning: value "((GtkIconSize) 32)" of type 'GtkIconSize' is invalid or out of range for property 'icon-size' of type 'GtkIconSize'
self.builder.add_from_file(os.path.join(prefs.data dir, "ui", "kazam.ui"))

(kazam:11995): Gtk-WARNING **: 16:14:28.900: Can't set a parent on widget which has a parent

(kazam:11995): Gtk-WARNING **: 16:14:28.902: Can't set a parent on widget which has a parent

I decided to not show all the setting up and saving of the video recording as all the damage is done by not starting correctly.

**NoWorries** · May 23, 2025, 07:48 PM

I am now very pleased to report that both kdenlive and kazam both work very well on X11

. On Wayland, only kdenlive works, ie I can launch it and it plays a previously edited video. However on Waylnd, the kazam saved file has a black video screen while the audio now plays

. So progress has been made, and from the current rate of progress I hope it is not long before kazam works on Wayland. In the mean time, I know that X11 provides a solution to video recording and editing.

**acheron** · Jun 22, 2025, 02:17 AM

FYI, the X11 plasma session is no longer installed by default in Questing 25.10. If you wish to have an X11 session available in SDDM then make sure the package plasma-session-x11 is installed.

**tenplus1** · Jun 22, 2025, 11:28 AM

Since removing x11 login session, on boot into desktop I've been getting 100% cpu usage from fusermount3 for 20-30 seconds then it stops. Any ideas what's changed ?

**claydoh** · Jun 22, 2025, 08:11 PM

Originally posted by tenplus1 View Post

Since removing x11 login session, on boot into desktop I've been getting 100% cpu usage from fusermount3 for 20-30 seconds then it stops. Any ideas what's changed ?

So you yourself removed the existing x11 login session? (its removal from the ISO as a defualt package should not affect current installs, nor remove the relevant package)
Does this happen when you switch back to an x11 session? It is not likley related to the display protocol, but you never know.
being fusermount, it may be related to things you have mounting or starting up at login (restoring something from the previous desktop session)? A Flatpak/snap, or some extra service (rclone or docker or something similar, perhaps. Rclone sparks a memory, but that would be quite a while ago.)
The usual pre-beta caveats and disclaimers

**tenplus1** · Jun 22, 2025, 09:08 PM

claydoh - The system update removed the x11 login session itself, and everything worked fine on wayland session beforehand, was just curious why fusermount3 decided to hog one of the cpu cores for some time after login. I will try disabling snap and flatpak to see if that makes a difference.

**claydoh** · Jun 22, 2025, 10:06 PM

Might be worth rolling back to a previous state (if possible) and see the full list of changes.

If you are not using any snaps (firefox, for example) then it probably isn't from that.

I am not seeing it here, but I haven't actually looked for it. And I have not updated that laptop since Friday or thereabouts anyway.

**claydoh** · Jun 23, 2025, 12:02 AM

I can't reproduce it, fusermount isn't running at login here.

On my main KDE neon system, it IS at login, and post-login, as I have one flatpak app (ktailctl) loading at login, and it is what provides the KDE file picker in Gnome/GTK apps (or vice-versa) , mostly in snap and flatpak apps, but also in 'normal' apps as well.

fwiw, the x11 is not removed when updating, only if you do cleanup via autoremove and allow it. Unless discover does this? (I don't think so -- I use it for regular updates daily) None of the small updates I saw today seem related to xdg or fuse, but the layers can go deep.

**NoWorries** · Jun 24, 2025, 09:43 PM

Originally posted by acheron View Post

FYI, the X11 plasma session is no longer installed by default in Questing 25.10. If you wish to have an X11 session available in SDDM then make sure the package plasma-session-x11 is installed.

With plasma-session-x11 installed on wayland, kdenlive worked perfectly however kazam recording gave a black screen with sound. On my X11 desktop, kazam gave video and sound in the saved recording

.

I just hope the solution to kazam recording on the wayland desktop is simple.

**claydoh** · Jun 24, 2025, 11:35 PM

Originally posted by NoWorries View Post

I just hope the solution to kazam recording on the wayland desktop is simple.

use x11 until the kazam supports wayland, which will need to happen at some point, but not in the current code, let alone the truly ancient release ubuntu pulls from Debian

https://github.com/henrywoo/kazam/issues/64
https://github.com/henrywoo/kazam/issues/51
https://github.com/henrywoo/kazam/issues/14 but this is almost a year old.

these smaller projects may take longer to catch up, plus Kazam, being a package found in the unsupported/community-supported Universe pocket of the Ubuntu archive, also means it is Debian-old, aka 1.4.5, which is from 2014

**rec9140** · Jun 28, 2025, 10:19 PM

Originally posted by acheron View Post

FYI, the X11 plasma session is no longer installed by default in Questing 25.10. If you wish to have an X11 session available in SDDM then make sure the package plasma-session-x11 is installed.

Well looks like we've reached the fork in the road.. and the decision on which fork is being made for me...yet again, another major decision about my OS made for me... sighhhh.

Based on this:
"Kubuntu’s Rik Mills further explains: “It is highly improbable that we can support the X11 session in 26.04 LTS, so Like Ubuntu desktop it is probably better to rip off this sticking plaster in 25.10 and concentrate on Wayland” (sic)."

Looks like I will be forced to update to 25.10, a non ESR, and once again, fix stupidity that I should not have to fix.. see systemd, pulsed, snapd, sddm, etc.. and now x11. sighhhhhhhh. More crap shoved down my throat that I don't want. Wheres the choice here people?!?!?! Not seeing choice here! Yeah I am hot under the collar.

Another task added to MY LIST with out need or consent.

Well looks like 25.10 will be it for me! Thanks for all the fish!

PS: You can save yourself the time and aggravation on extolling the virtues of waycrap over X11, I ain't interested in the least. This is a hard red line for me. I am done.

I return you to regular programming now... bzttataahtha...~~~###NO CARRIER

**tenplus1** · Jun 28, 2025, 11:23 PM

I'm starting to think that maybe the X11 session should be included or at least an option during install provided at least until the new LTS to give users some leeway until full wayland.

**claydoh** · Jun 28, 2025, 11:30 PM

Um, bye felicia?
Or is installing a single package all that hard?
These headlines are severe clickbait overreactions. x11 should still be in 26.04, at least right now, and I suspect it will be beyond that.
It just won't be installed by default \Excpet for those respins that may still need it (xfce, mate, and others)

Originally posted by rec9140 View Post

Wheres the choice here people?!

You have the choice. But you may have to do the work yourself (install a package), or build your own, or migrate to where other like-minded folks have gone?
As long as Debian builds x11, it very likley will be found in Ubuntu. Even if at some point Ubuntu stop actually building it themselves, it will be in Universe, along with all the community-supported packages and ones imported from Debian directly.

I suspect you will still be able to use x11 in a non-Gnome ubuntu for some time to come. (Plasma will support it until whenever Plasma 7 comes along)
After that , Arch ( via some crusty AUR mess down the road, I imagine) and Debian should fit the bill.

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Friendly evaluate Kubuntu 25.10 Questing Quokka

Friendly evaluate Kubuntu 25.10 Questing Quokka

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