Hi,
When I try to start Qbittorrent, the dark space in the tray shows for a second or two, then vanishes. SystemManager confirms that there’s no qbittorrent alive. My research vaguely suggests that the wrong icon may be the cause of my trouble. By the way, on another box with Manjaro KDE Qbittorrent works, but the icon, indeed, is not quite right.
I tried to change the system icon theme; no luck. Meanwhile, I can’t change the icon via Qbittorrent UI. What else can I try?
Can you try reinstalling qbittorrent. Also make sure you are up-to-date.
sudo pacman -Rs qbittorrent && sudo pacman -S qbittorrent
If this doesn’t work then launch it from terminal and share output.
Hi @Llama,
In order to recieve any assistance, more information is needed. To that end, please see [HowTo] Provide System Information and [HowTo] Increase your chances of solving your issue.
Also, please open a terminal, run qbittorrent and provide us with the output, using this as guide: [HowTo] Use preformatting in a forum post.
Reinstall did not help.
Console output:
ᐅ qbittorrent
The legacy data directory '/home/alexey/.local/share/data/qBittorrent' is used. It is recommended to move its content to '/home/alexey/.local/share/qBittorrent'
*************************************************************
Please file a bug report at http://bug.qbittorrent.org and provide the following information:
qBittorrent version: v4.4.0
Caught signal: SIGSEGV
Stack trace:
/usr/lib/libtorrent-rasterbar.so.2.0 : libtorrent::file_storage::file_path(libtorrent::aux::strong_typedef<int, libtorrent::aux::file_index_tag, void>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const+0x1b [0x7f3e82e43c3b]
qbittorrent : ()+0x11ec42 [0x560c8b75cc42]
qbittorrent : ()+0x116f11 [0x560c8b754f11]
qbittorrent : ()+0x117e5b [0x560c8b755e5b]
/usr/lib/libQt6Core.so.6 : QObject::event(QEvent*)+0x28b [0x7f3e82393ecb]
/usr/lib/libQt6Widgets.so.6 : QApplicationPrivate::notify_helper(QObject*, QEvent*)+0x8d [0x7f3e83b58ced]
/usr/lib/libQt6Core.so.6 : QCoreApplication::notifyInternal2(QObject*, QEvent*)+0x13a [0x7f3e8234d28a]
/usr/lib/libQt6Core.so.6 : QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*)+0x188 [0x7f3e8234d468]
/usr/lib/libQt6Core.so.6 : ()+0x338948 [0x7f3e8253f948]
/usr/lib/libglib-2.0.so.0 : g_main_context_dispatch()+0x193 [0x7f3e819ebf13]
/usr/lib/libglib-2.0.so.0 : ()+0xab0d9 [0x7f3e81a420d9]
/usr/lib/libglib-2.0.so.0 : g_main_context_iteration()+0x35 [0x7f3e819e9485]
/usr/lib/libQt6Core.so.6 : QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)+0x70 [0x7f3e8253d550]
/usr/lib/libQt6Core.so.6 : QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)+0x1e3 [0x7f3e82357993]
/usr/lib/libQt6Core.so.6 : QCoreApplication::exec()+0x96 [0x7f3e82350a06]
qbittorrent : ()+0xb938d [0x560c8b6f738d]
/usr/lib/libc.so.6 : __libc_start_main()+0xd5 [0x7f3e81cb6b25]
qbittorrent : ()+0xc0b3e [0x560c8b6feb3e]
[1] 16054 segmentation fault (core dumped) qbittorrent
Follow this 
Try removing it:
pamac remove qbittorrent
And reinstalling it, but forcing pamac to overwrite any config files:
pamac install --overwrite qbittorrent
Somehow,
$ pamac install --overwrite qbittorrent
won’t work. pamac is not my package manager of choice, so I’m mystified a bit. I see just the help output, as if the command line options were incorrect. I can’t see any obvious errors, though.
If you have successfully removed it, try without the --overwrite flag:
pamac install qbittorrent
Edit:
Also, as per the error:
cp /home/alexey/.local/share/data/qBittorrent /home/alexey/.local/share/qBittorrent
as @anon12891489, said. Test it, and if everything works, delete the old directory:
rm -r /home/alexey/.local/share/data/qBittorrent
The “recommended” warning is gone, indeed. Otherwise, it remains bleak:
ᐅ qbittorrent
*************************************************************
Please file a bug report at http://bug.qbittorrent.org and provide the following information:
qBittorrent version: v4.4.0
Caught signal: SIGSEGV
Stack trace:
qbittorrent : ()+0x29b450 [0x56318426f450]
/usr/lib/libQt6Core.so.6 : ()+0x19a7d0 [0x7f11f0d317d0]
qbittorrent : ()+0x11f72b [0x5631840f372b]
qbittorrent : ()+0x116f11 [0x5631840eaf11]
qbittorrent : ()+0x117e5b [0x5631840ebe5b]
qbittorrent : ()+0x118169 [0x5631840ec169]
qbittorrent : ()+0xc92d5 [0x56318409d2d5]
qbittorrent : ()+0xb938d [0x56318408d38d]
/usr/lib/libc.so.6 : __libc_start_main()+0xd5 [0x7f11f0646b25]
qbittorrent : ()+0xc0b3e [0x563184094b3e]
[1] 20895 segmentation fault (core dumped) qbittorrent
Latest version of qbittorrent is built against qt6. You can remove this version and install qbittorrent-qt5 from AUR for now.
Why not just use native ktorrent for KDE? 
Unfortunately, qbittorrent-qt5 crashes just the same.
UPD
qbittorrent-qt5 v4.4.1 did the trick at last.
I too had problems with the new qBittorrent because of existing torrents, as described in https://github.com/qbittorrent/qBittorrent/issues/16346#issuecomment-1037236542
It can besolved by removing the resume data and importing the torrents again.
mv $HOME/.local/share/qBittorrent/BT_backup $HOME/.local/share/qBittorrent/OLD.BT_backup
cp $HOME/.local/share/qBittorrent/OLD.BT_backup/*.torrent $HOME/Downloads
then start qBittorrent. No torrents are present. Now open each torrent file in $HOME/Downloads one by one and let qBittorrent discover and check the torrent content files in your seeding directory.
Thanks! This solution can turn out useful in the future.
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