qt5ct setup

Jeebizz · 03-21-2022, 08:10 AM

So how do you get the qt5ct utility to work? I issued the command:

Code:

set QT_QPA_PLATFORMTHEME=qt5ct

However in the qt5config window I just get "this application is not setup configured correctly." Did I have to set that command as root, or is it something completely different?

shelldweller · 03-21-2022, 08:24 AM

Quote:

Originally Posted by Jeebizz

So how do you get the qt5ct utility to work? I issued the command:

Code:

set QT_QPA_PLATFORMTHEME=qt5ct

However in the qt5config window I just get "this application is not setup configured correctly." Did I have to set that command as root, or is it something completely different?

I add that line to /etc/environment, like this:

Code:

bash-5.1$ cat /etc/environment
# /etc/environment
# This file is parsed by pam_env module.
# This file may contain environment variable settings that should be used
# system-wide. Please note that it is not a script file and should only
# contain assignment expressions, one per line.
# The environment variables in this file will be loaded before those in other
# files such as: /etc/profile, /etc/profile.d/*, ~/.profile, etc.
#
# Syntax: simple "KEY=VAL" pairs on separate lines
#
QT_QPA_PLATFORMTHEME=qt5ct

That does the trick for me.

Daedra · 03-21-2022, 08:29 AM

I put it in my .xinitrc file.

Code:

export  QT_QPA_PLATFORMTHEME=qt5ct

USUARIONUEVO · 03-21-2022, 08:32 AM

Me use

/etc/profile.d

qt5ct.sh

Quote:

export QT_QPA_PLATFORMTHEME=qt5ct

Jeebizz · 03-21-2022, 08:34 AM

I put it in my environment like so:

Code:

# /etc/environment
# This file is parsed by pam_env module.
# This file may contain environment variable settings that should be used
# system-wide. Please note that it is not a script file and should only
# contain assignment expressions, one per line.
# The environment variables in this file will be loaded before those in other
# files such as: /etc/profile, /etc/profile.d/*, ~/.profile, etc.
#
# Syntax: simple "KEY=VAL" pairs on separate lines
#
QT_QPA_PLATFORMTHEME=qt5ct

I even restarted my KDE session, and qt5settings still says it is not configured properly.

Jeebizz · 03-21-2022, 09:35 AM

I now went in and added that line to /etc/profile.d/qt5.sh , and it still complains:

Click image for larger version

Name: Screenshot_2022-03-21_09-30-19.png
Views: 36
Size: 31.7 KB
ID: 38644

Daedra · 03-21-2022, 10:05 AM

One thing that is probably not related, but qt5ct-1.1 is a bit dated. The newest version is 1.5. Just grab the source and change the version line in the slackbuild. No other changes are needed. And make sure you put export in front of the line.

Code:

export QT_QPA_PLATFORMTHEME=qt5ct

Jeebizz · 03-21-2022, 10:32 AM

Quote:

Originally Posted by Daedra

One thing that is probably not related, but qt5ct-1.1 is a bit dated. The newest version is 1.5. Just grab the source and change the version line in the slackbuild. No other changes are needed. And make sure you put export in front of the line.

Code:

export QT_QPA_PLATFORMTHEME=qt5ct

Ok I forgot export, but I grabbed 1.1 , compiled it , installed (upgraded), verified my /etc/environment

Code:

                                                        
# /etc/environment
# This file is parsed by pam_env module.
# This file may contain environment variable settings that should be used
# system-wide. Please note that it is not a script file and should only
# contain assignment expressions, one per line.
# The environment variables in this file will be loaded before those in other
# files such as: /etc/profile, /etc/profile.d/*, ~/.profile, etc.
#
# Syntax: simple "KEY=VAL" pairs on separate lines
#
export QT_QPA_PLATFORMTHEME=qt5ct

And I even have the same in /etc/profile.d/qt5.sh

Code:

#!/bin/sh
# Environment variables for the Qt package.
#
# It's best to use the generic directory to avoid
# compiling in a version-containing path:
if [ -d /usr/lib64/qt5 ]; then
  QT5DIR=/usr/lib64/qt5
else
  # Find the newest Qt directory and set $QT5DIR to that:
  for qtd in /usr/lib64/qt5-* ; do
    if [ -d $qtd ]; then
      QT5DIR=$qtd
    fi
  done
fi
PATH="$PATH:$QT5DIR/bin"
export QT5DIR
export QT_QPA_PLATFORMTHEME=qt5ct
# Unfortunately Chromium and derived projects (including QtWebEngine) seem
# to be suffering some bitrot when it comes to 32-bit support, so we are
# forced to disable the seccomp filter sandbox on 32-bit or else all of these
# applications crash. If anyone has a patch that gets these things running on
# 32-bit without this workaround, please let volkerdi or alienBOB know, or
# post your solution on LQ. Thanks. :-)
if file /bin/cat | grep -wq 32-bit ; then
  export QTWEBENGINE_CHROMIUM_FLAGS="--disable-seccomp-filter-sandbox"
fi

Still not working after restarting KDE again.

elcore · 03-22-2022, 01:45 AM

I've got the same thing as Daedra in my ~/.xsession which is used by XDM/xinit to start X.
Works fine, qt5-5.15.3_20220312_33a3f16f-x86_64 & qt5ct-1.5-x86_64

Note you must recompile qt5ct every time when qt is upgraded.
Also note, some programs like virtualbox ship static qt which you cannot theme with qt5ct.

Make sure there isn't something else that sets QT_QPA_PLATFORMTHEME on your system.
Maybe there's some export like that in 'startkde' now, but I don't use kde so..
Does it work in xfce, or with a simple wm? Without starting a plasma session I mean.

Jeebizz · 03-22-2022, 07:19 AM

Quote:

Originally Posted by elcore

I've got the same thing as Daedra in my ~/.xsession which is used by XDM/xinit to start X.
Works fine, qt5-5.15.3_20220312_33a3f16f-x86_64 & qt5ct-1.5-x86_64

Note you must recompile qt5ct every time when qt is upgraded.
Also note, some programs like virtualbox ship static qt which you cannot theme with qt5ct.

Make sure there isn't something else that sets QT_QPA_PLATFORMTHEME on your system.
Maybe there's some export like that in 'startkde' now, but I don't use kde so..
Does it work in xfce, or with a simple wm? Without starting a plasma session I mean.

I haven't tried it in xfce, but so now from what I am understanding I need to go and remove the export command in /etc/environment and /etc/profile.d/qt5.sh ...and just put it in my .xsession... Ok I will try that. I also never upgraded qt5 so recompiling anything is moot.

Jeebizz · 03-22-2022, 07:23 AM

So I removed the export and only placed it in my .xsession .....still nothing, the QT5 config utility still complains....

Jeebizz · 03-22-2022, 07:29 AM

Quote:

Originally Posted by elcore

Does it work in xfce, or with a simple wm? Without starting a plasma session I mean.

Nope, under xfce4 it still complains it is not properly configured.

Click image for larger version

Name: Screenshot_2022-03-22_07-27-42.png
Views: 20
Size: 35.7 KB
ID: 38645

elcore · 03-22-2022, 10:37 AM

Mine (v1.5) just works, style:fusion dialogs:default palette:custom font:roboto
If compiled against the specific qt5 version you have installed then it should just work. Note that v1.1 may be older than qt5 in slackware 15.
And BTW .xsession is only executed in some setups not all, almost certain here that kde disregards that.
Anyway, easy enough to check with "env" where it lists all variables, if QT_QPA_PLATFORMTHEME is listed.
What does it say if you run "qt5ct" from the terminal?

Jeebizz · 03-22-2022, 10:44 AM

Quote:

Originally Posted by elcore

Mine (v1.5) just works, style:fusion dialogs:default palette:custom font:roboto
If compiled against the specific qt5 version you have installed then it should just work. Note that v1.1 may be older than qt5 in slackware 15.
And BTW .xsession is only executed in some setups not all, almost certain here that kde disregards that.
Anyway, easy enough to check with "env" where it lists all variables, if QT_QPA_PLATFORMTHEME is listed.
What does it say if you run "qt5ct" from the terminal?

I am just running the stock qt5 included in Slackware 15. I honestly do not know, since clearly it isn't 'just working' for me and I am at the verge of saying fsck this and giving up but here is the terminal output anyhow:

Code:

slackuser@slackmachine:~$ qt5ct
Configuration path: "/home/slackuser/.config/qt5ct"
Shared QSS paths: ("/home/slackuser/.local/share/qt5ct/qss", "/usr/local/share/qt5ct/qss", "/usr/share/qt5ct/qss")
Shared color scheme paths: ("/home/slackuser/.local/share/qt5ct/colors", "/usr/local/share/qt5ct/colors", "/usr/share/qt5ct/colors")

elcore · 03-22-2022, 10:58 AM

If you want my advice, compile qt5ct-1.5 which Daedra already confirmed working,
Other than that, I don't know, only time I've had a problem with it was when virtualbox set QT_QPA_PLATFORMTHEME=xcb by force.
So yeah, if you run virtualbox it's not going to work, you'll have to logout and reset the variable.