Changed DE - Can no longer launch File Manager

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Akovia
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Changed DE - Can no longer launch File Manager

Post by Akovia »

Hi,
Just switched from XFCE to KDE-Plasma. After switching I've updated the mime db to reflect dolphin as the file manager, and it does seem to try to open it, but fails with these errors. (The dolphin icon bounces then stops)

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 ** start condition wait
qt5ct: using qt5ct plugin
kf.windowsystem: Could not find any platform plugin
/usr/bin/dolphin: symbol lookup error: /usr/lib/libQt5WaylandClient.so.5: undefined symbol: _ZTI27QPlatformServiceColorPicker, version Qt_5_PRIVATE_AP
I removed and and did a fresh build/install through the aur. I also tried reinstalling qt5ct because I was getting an error without it.

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Arch Linux
KDE Plasma Version: 5.26.5
KDE Frameworks Version: 5.101.0
Qt Version: 5.15.8
Kernel Version: 6.1.6-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-9700K CPU @ 3.60GHz
Memory: 62.7 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 2070 SUPER/PCIe/SSE2
Thanks!
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xnview
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Re: Changed DE - Can no longer launch File Manager

Post by xnview »

i've tried on Kubuntu and no problem with KDE plsama

Could you try to start xnview in a terminal and set QT_DEBUG_PLUGINS
Pierre.
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Akovia
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Re: Changed DE - Can no longer launch File Manager

Post by Akovia »

Sorry I haven't had time to do this earlier.

Could you please be more specific on what you need me to do? The only reference I could find was here, and following their instruction to set the variable to a "non-zero" value did nothing.

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$ QT_DEBUG_PLUGINS=1
$ echo $QT_DEBUG_PLUGINS
1
The error is the same as before, if it's even related..

Code: Select all

/usr/bin/dolphin: symbol lookup error: /usr/lib/libQt5WaylandClient.so.5: undefined symbol: _ZTI27QPlatformServiceColorPicker, version Qt_5_PRIVATE_AP
Thanks
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xnview
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Re: Changed DE - Can no longer launch File Manager

Post by xnview »

do you use the .deb or tgz?
Pierre.
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Akovia
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Re: Changed DE - Can no longer launch File Manager

Post by Akovia »

Neither, I used the Arch aur package.

https://aur.archlinux.org/packages/xnviewmp
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xnview
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Re: Changed DE - Can no longer launch File Manager

Post by xnview »

Akovia wrote: Sat Jan 21, 2023 9:17 pm Neither, I used the Arch aur package.

https://aur.archlinux.org/packages/xnviewmp
Latest version us Qt 5.15.12 and not QT 5.15.8
Pierre.
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Akovia
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Re: Changed DE - Can no longer launch File Manager

Post by Akovia »

xnview wrote: Sun Jan 22, 2023 10:14 am Latest version us Qt 5.15.12 and not QT 5.15.8
That's odd. Arch is a rolling release and is considered bleeding edge. I can't imagine many releases have a more current version than Arch.

According to their software page for qt, there are only 2 packages at the .12 level.
https://archlinux.org/groups/x86_64/qt/

So I suppose I used the debugging variable properly then? If so, I guess I'll have to wait until Arch releases 5.15.12 to troubleshoot further?
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xnview
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Re: Changed DE - Can no longer launch File Manager

Post by xnview »

Akovia wrote: Sun Jan 22, 2023 5:14 pm So I suppose I used the debugging variable properly then? If so, I guess I'll have to wait until Arch releases 5.15.12 to troubleshoot further?
or you can use tgz package
Pierre.
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Akovia
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Re: Changed DE - Can no longer launch File Manager

Post by Akovia »

While troubleshooting this other issue, I downloaded the latest tgz for troubleshooting and tried it for this issue as well.
Version 1.4.2 64bits (Jan 26 2023)
Libformat version 7.136
There is no difference at all. Neither will launch my file manager.

Code: Select all

/usr/bin/dolphin: symbol lookup error: /usr/lib/libQt5WaylandClient.so.5: undefined symbol: _ZTI27QPlatformServiceColorPicker, version Qt_5_PRIVATE_API
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Re: Changed DE - Can no longer launch File Manager

Post by xnview »

Akovia wrote: Sun Feb 05, 2023 4:10 pm do you start it by ./xnview.sh?
Pierre.
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Akovia
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Re: Changed DE - Can no longer launch File Manager

Post by Akovia »

Yes
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Re: Changed DE - Can no longer launch File Manager

Post by xnview »

i've just installed Arch Linux + Plasma, and i have no problem with XnView MP
How do you have versions of plasma, kde, ...?
Pierre.
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Akovia
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Re: Changed DE - Can no longer launch File Manager

Post by Akovia »

I am fully up to date, so it would be the same version as you. If everything is working for you, then it must be my system.

I moved from XFCE to KDE, so there is probably some issue from changing DEs and not installing fresh from scratch.

Thank you very much for installing my system to test it out! It's obvious now that it's not your software, and is something in my system. If you can think of any way I can troubleshoot this further, I'll give it a shot, otherwise, thanks again for looking into this.

Cheers!
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Re: Changed DE - Can no longer launch File Manager

Post by xnview »

try to set QT_QPA_PLATFORM
Pierre.