[ ABANDONED ] Can't get KDE/Plasma OpenGL desktop effects run

seth · 2021-07-29 21:25:35

Can you use the config GUI to update those values (ie. try to disable the effects, then re-enable them and monitor the file updates)
The config GUI and kwin might simply disagree on the default value…

cameo · 2021-07-29 21:50:41

Yes, configuring the blur effect via System Settings GUI works now.

But ... blurring is totally eating up my Arch CPU; even after reboot, and in contrary to Manjaro!

seth · 2021-07-29 21:52:49

Check the settings - gaussian blurring is very expensive and does't scale (ie. a bigger kernel makes everything slower), but I assume KDE also has dual-kawase blurring.

cameo · 2021-07-29 21:59:47

Erm... where would I find that one exactly?
I just changed the blur settings from stronger to lighter, but that didn't make a difference on the costs.

PS: You just achieved 22,222 comments! ^^

Last edited by cameo (2021-07-29 22:06:08)

seth · 2021-07-30 06:01:32

https://phabricator.kde.org/R108:0179f7 … 02869a099b suggests that dual-kawase is actually the only implementation.
Different transparency settings (and by inference blur-requirements) might have an impact.

cameo · 2021-09-04 12:25:25

Back to the root prompt! Sorry for the delay guys, due to issues IRL I wasn't able to follow this one closely.

My first aim has been to switch over to KDE5/Plasma, the second to keep on with tiling (while still having eye candy such as compositing and stuff available). And at some distant post-Xorg day when Plasma/Wayland has become an old grown couple, a flawless Plasma/Sway setup might be a snap without any necessity for X11, even on mobiles.

Yet I had some fun with kröhnkite in X, which is a great kwin script for that purpose for sure. – My favourite tool for tiling is still rock-solid XMonad though (replacing Kwin and its compositor), with its many features I am fond of. So I'm heading for this one working inside Plasma now, consulting numerous wikis (e.g. Arch's, XMonad's), howtos, and configs dealing with that challenges; much of it seeming pretty outdated.

So I am abandoning this thread, because it's relying on Kwin's compositor.
Compositing comes later (I prefer picom), right now I'm stuck into basics with XMonad/KDE5 (i.e. kde4Config), a selection:

* Although "avoidStruts" and "manageDocks" are in use (and worked well with XFCE), the plasma system tray is not being detected and gets covered by window clients. xprop says, its class is just "plasmashell" – not very helpful.

* How do I start KDEs system settings from command line, and where are its logs?

* In KDE system settings, Desktop behavior | Virtual desktops can't be invoked, because there's an 'error retrieving information about the compositor'. – Sure, currently I don't have any compositor loaded (kwin, picom, xcompmgr), but I also have disabled compositing either. And what do virtual desktops have to do with compositing anyway?

I am new to the KDE world and am thankful for hints and keywords. If there isn't a quick fix available here I'm going to open new threads.

Last edited by cameo (2021-09-04 13:27:00)

seth · 2021-09-04 12:46:59

The window is also likely _NET_WM_WINDOW_TYPE_DOCK ?

pacman -Ql systemsettings

Since that config dialog is fro kwin, it'll more likely complaining about its absence, it's not related to compositing but you'll have to configure workspaces in xmonad.

cameo · 2021-09-04 13:19:11

seth wrote:

pacman -Ql systemsettings

Alright, there's "/usr/bin/systemsettings5".

seth wrote:

The window is also likely _NET_WM_WINDOW_TYPE_DOCK ?

Yes, it is:

$ xprop | grep -i dock
_NET_WM_WINDOW_TYPE(ATOM) = _NET_WM_WINDOW_TYPE_DOCK, _KDE_NET_WM_WINDOW_TYPE_OVERRIDE, _NET_WM_WINDOW_TYPE_NORMAL

OK then, how to proceed?

Edit: I wonder why the system tray named "plasmashell" still exists at all as I followed the instructions to disable the plasma shell.

seth wrote:

Since that config dialog is fro kwin, it'll more likely complaining about its absence ...

Sounds logical; this error occurs both if composting is enabled or disabled in KDE. So this dialog is only responsible for kwin (and not any other compositor) – which is not available because of the replacement why Xmonad.

seth wrote:

it's not related to compositing but you'll have to configure workspaces in xmonad.

Sure, they are, and all used to work well in standalone XMonad or running inside XFCE.

What bothers me though, it is advised to set the desktop number to "1" in KDE, but I can't do this because of the error not letting me into that dialog. I might retry changing back to kwin, reset to "1", and restart with XMonad later.

Last edited by cameo (2021-09-04 14:53:48)

seth · 2021-09-04 14:07:51

OK then, how to proceed?

idk, you seem to have been interested in detecting the window in question and class + type together should allow you to do so.
I've 0 experience w xmonad.

cameo · 2021-09-04 14:59:45

That's fair enough – thanks a bunch, man! :thumbsup:

Well then, I managed to reset to a single KDE workspace, despite that sustaining compositor error message in the mentioned config dialog.

Still no dice for the covered system tray; maybe it can only be prevented from auto-starting in favor of an alternative.
I will contact the Xmonad staff later.

seth · 2021-09-04 18:37:57

https://wiki.archlinux.org/title/Xmonad … onky,_etc)

Arch Linux

#51 2021-07-29 21:25:35

Re: [ ABANDONED ] Can't get KDE/Plasma OpenGL desktop effects run

#52 2021-07-29 21:50:41

Re: [ ABANDONED ] Can't get KDE/Plasma OpenGL desktop effects run

#53 2021-07-29 21:52:49

Re: [ ABANDONED ] Can't get KDE/Plasma OpenGL desktop effects run

#54 2021-07-29 21:59:47

Re: [ ABANDONED ] Can't get KDE/Plasma OpenGL desktop effects run

#55 2021-07-30 06:01:32

Re: [ ABANDONED ] Can't get KDE/Plasma OpenGL desktop effects run

#56 2021-09-04 12:25:25

Re: [ ABANDONED ] Can't get KDE/Plasma OpenGL desktop effects run

#57 2021-09-04 12:46:59

Re: [ ABANDONED ] Can't get KDE/Plasma OpenGL desktop effects run

#58 2021-09-04 13:19:11

Re: [ ABANDONED ] Can't get KDE/Plasma OpenGL desktop effects run

#59 2021-09-04 14:07:51

Re: [ ABANDONED ] Can't get KDE/Plasma OpenGL desktop effects run

#60 2021-09-04 14:59:45

Re: [ ABANDONED ] Can't get KDE/Plasma OpenGL desktop effects run

#61 2021-09-04 18:37:57

Re: [ ABANDONED ] Can't get KDE/Plasma OpenGL desktop effects run

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