All Things KDE5/Plasma for Slackware Users.

gegechris99 · 05-09-2020, 04:48 AM

For what it's worth, I run Slackware64 current with latest alienBOB KDE5.
I have a evdev configuration file:

Code:

$ cat /etc/X11/xorg.conf.d/90-keyboard-layout-evdev.conf 
Section "InputClass"
        Identifier "keyboard-all"
        MatchIsKeyboard "on"
        MatchDevicePath "/dev/input/event*"
        Driver "evdev"
        Option "XkbLayout" "fr"
        #Option "XkbVariant" ""
        Option "XkbOptions" "terminate:ctrl_alt_bksp"
EndSection

I can ssh on a machine and don't have the strange behavior reported by rkelsen.

enorbet · 05-09-2020, 12:51 PM

Thank you gegechris99. I have yet to look into evdev options for keyboards so I will start playing with this. For reference and even though I'm still discovering how these options perform, this is my current evdev-mouse config

Code:

#/etc/x11/xorg.conf- Section-Input-Mouse
Section "InputDevice"
    # generated from default
    Identifier     "Mouse0"
    Driver         "evdev"
    Option         "Protocol" "auto"
 ## Old Stuff---
   #Option         "Device" "/dev/input/mice"
   #Option         "Emulate3Buttons" "no"
   #Option         "ZAxisMapping" "4 5"
    Option      "Buttons"       "6"
    Option      "ButtonMapping"  "1 2 3 6 4 5" 
    Option      "AdaptiveDeceleration" "2"
    Option         "Name"   "SteelSeries SteelSeries Rival 310 eSports Mouse"
###NewStuff - evdev
    Option      "Device" "/dev/input/event9"
    Option      "euBits" "+1-2"
    Option      "keybits" "~272-287"
    Option      "relbits" "~0-2 ~6 ~8"
    Option      "Pass"    "3"
EndSection

cwizardone · 05-16-2020, 03:34 PM

Well, I just installed kde5, again.
I'm either bored or a masochist, haven't figured out which.

Anyway, this is the third time I've noticed it is not possible to setup virtual desktops.
When I go to "system settings" to "workspace behavior" and click on, "virtual desktops,"
the virtual desktop panel comes up for a couple of seconds and then crashes taking the
system settings panel with it. This generates the usual "Settngs Settngs closed unexpectedly"
please report this error, yada, yada, yada.

Has anyone else had the same problem?
Thx.

Alien Bob · 05-16-2020, 03:47 PM

Quote:

Originally Posted by cwizardone

Well, I just installed kde5, again.
I'm either bored or a masochist, haven't figured out which.

Anyway, this is the third time I've noticed it is not possible to setup virtual desktops.
When I go to "system settings" to "workspace behavior" and click on, "virtual desktops,"
the virtual desktop panel comes up for a couple of seconds and then crashes taking the
system settings panel with it. This generates the usual "Settngs Settngs closed unexpectedly"
please report this error, yada, yada, yada.

Has anyone else had the same problem?
Thx.

I guess, "read my blog" would be/give an answer, albeit not the one you want to hear.

cwizardone · 05-16-2020, 05:46 PM

Back to Xfce-4.12.

drgibbon · 05-16-2020, 10:30 PM

Quote:

Originally Posted by cwizardone

Anyway, this is the third time I've noticed it is not possible to setup virtual desktops.
When I go to "system settings" to "workspace behavior" and click on, "virtual desktops,"
the virtual desktop panel comes up for a couple of seconds and then crashes taking the
system settings panel with it. This generates the usual "Settngs Settngs closed unexpectedly"
please report this error, yada, yada, yada.

A temporary fix is here. In brief, start settings from the terminal with:

Code:

QT_QUICK_CONTROLS_STYLE=Base systemsettings5

This at least lets you get in and make the changes you need. Not the best, but FWIW, my experience with Plasma 5 has been good overall.

giomat · 05-23-2020, 11:22 AM

i guess this is the most appropriate place to ask for a krunner plugin issue.
Around the web some people claim that they are able to call gnuplot from krunner to make plots on the go, using a syntax like

Code:

=plot(sin(x)/x)

I tried it along with some variations of parenthesis, but without any luck, and judging from the various posts about the functionality
it seems to be a built in feature of krunner, not some random plugin off github.
In the plugins settings of krunner i don't see any "plot" or "gnuplot" entry, so i thought that maybe it's something that needs to be enabled at compile time.
Anyone here is able to use this functionality?

Alien Bob · 05-23-2020, 02:18 PM

Quote:

Originally Posted by giomat

call gnuplot from krunner to make plots on the go, using a syntax like

Code:

=plot(sin(x)/x)

I think it requires libqalculate for this.

giomat · 05-23-2020, 05:07 PM

libqalculate did not do the trick unfortunately, i'm wondering if perhaps the gnuplot that comes with slackware is the problem, since it lacks the qt gui component that i saw packaged in debian and others..

sombragris · 05-23-2020, 08:18 PM

Quote:

Originally Posted by giomat

libqalculate did not do the trick unfortunately, i'm wondering if perhaps the gnuplot that comes with slackware is the problem, since it lacks the qt gui component that i saw packaged in debian and others..

Looks like that's the case:

https://www.reddit.com/r/kde/comment...stall_gnuplot/

RadicalDreamer · 05-23-2020, 09:02 PM

I've recently ran into a new feature with kwallet5d on run level 4 while logging out of a user account a couple of times. The user account doesn't have kwallet enabled in system settings. I grow tired of waiting on a blank screen, kill X, and see something like the following:

Code:

kwalletd5: Checking for pam module
kwalletd5: Got pam-login param
kwalletd5: Waiting for hash on 15-
kwalletd5: waitingForEnvironment on: 19
kwalletd5: client connected
kwalletd5: client disconnected

I copied the kwallet5d code from:
https://github.com/sddm/sddm/issues/991

giomat · 05-24-2020, 05:26 AM

I managed to get the gnuplot working with krunner. it turns out, there actually is a compile-time dependency on libqalculate in the plasma-workspace package (relevant link).

The stock gnuplot coming with slackware is fine, even without the qt part built in, just installing libqalculate and recompiling plasma-workspace does the trick.

As you can see in the linked page, beside plotting simple functions, krunner with libqalculate can compute integrals and derivates (=diff(...), =integrate(...)), solve linear equations (=solve(...)) and perform complex unit conversion like 2.5kg*10m/s^2

It could make sense to include it in the main slackware tree as a dependency once plasma5 is merged, the added functionality is too good to be left on the user shoulders in my opinion

Alien Bob · 05-24-2020, 05:32 AM

Quote:

Originally Posted by giomat

I managed to get the gnuplot working with krunner. it turns out, there actually is a compile-time dependency on libqalculate in the plasma-workspace package (relevant link).

The stock gnuplot coming with slackware is fine, even without the qt part built in, just installing libqalculate and recompiling plasma-workspace does the trick.

As you can see in the linked page, beside plotting simple functions, krunner with libqalculate can compute integrals and derivates (=diff(...), =integrate(...)), solve linear equations (=solve(...)) and perform complex unit conversion like 2.5kg*10m/s^2

It could make sense to include it in the main slackware tree as a dependency once plasma5 is merged, the added functionality is too good to be left on the user shoulders in my opinion

For my May 2020 release of KDE5 I already added a libqalculate package and compiled plasma-workspace against it. It will take a day or so to find its way to the public mirrors.

giomat · 05-24-2020, 05:46 AM

Quote:

Originally Posted by Alien Bob

For my May 2020 release of KDE5 I already added a libqalculate package and compiled plasma-workspace against it. It will take a day or so to find its way to the public mirrors.

thanks alienbob, a much appreciated addition for our fellow scientists

gmgf · 05-24-2020, 06:27 AM

Quote:

Originally Posted by Alien Bob

For my May 2020 release of KDE5 I already added a libqalculate package and compiled plasma-workspace against it. It will take a day or so to find its way to the public mirrors.

I use 'libqalculate' and build 'plasma-workspace', with it, since longtime, 'qalculate-gtk' is one verry good scientists calculator, maybe it's good idea that included it in slackware.