I have 'always' used konq for file management and viewing. Currently with the SL7 el7 clone and Fedora 36. At least since the move to kde5, IIRC, on startup konq has not gone to the expected folder, but Bookmarks have worked and it has remained usable.
Since the massive F36 kde updates on 26 Feb this year I have had problems with occasional system freezes, covered here in other threads, but also in konq, which now starts, after a pause, in a duckduckgo screen about inodes. I've been getting more familiar with journalctl; here's an annotated log of konq startup, going to a bookmark, and quitting. Perhaps it will reveal something useful.
John P
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[john@HPFed ~]$ sudo SYSTEMD_COLORS=false journalctl -f
Mar 16 11:01:51 HPFed sudo[42990]: pam_unix(sudo:session): session opened for user root(uid=0) by john(uid=1000) Mar 16 11:02:15 HPFed sudo[42990]: pam_unix(sudo:session): session closed for user root Mar 16 11:02:15 HPFed audit[42990]: USER_END pid=42990 uid=1000 auid=1000 ses=3 subj=kernel msg='op=PAM:session_close grantors=pam_keyinit,pam_limits,pam_keyinit,pam_limits,pam_systemd,pam_unix acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/5 res=success' Mar 16 11:02:15 HPFed audit[42990]: CRED_DISP pid=42990 uid=1000 auid=1000 ses=3 subj=kernel msg='op=PAM:setcred grantors=pam_unix acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/5 res=success'
### Start response to keyboard command
Mar 16 11:02:30 HPFed audit[43015]: USER_ACCT pid=43015 uid=1000 auid=1000 ses=3 subj=kernel msg='op=PAM:accounting grantors=pam_unix,pam_localuser acct="john" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/5 res=success' Mar 16 11:02:30 HPFed audit[43015]: USER_CMD pid=43015 uid=1000 auid=1000 ses=3 subj=kernel msg='cwd="/home/john" cmd=6A6F75726E616C63746C202D66 exe="/usr/bin/sudo" terminal=pts/5 res=success' Mar 16 11:02:30 HPFed sudo[43015]: john : TTY=pts/5 ; PWD=/home/john ; USER=root ; ENV=SYSTEMD_COLORS=false ; COMMAND=/bin/journalctl -f Mar 16 11:02:30 HPFed audit[43015]: CRED_REFR pid=43015 uid=1000 auid=1000 ses=3 subj=kernel msg='op=PAM:setcred grantors=pam_env,pam_unix acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/5 res=success' Mar 16 11:02:30 HPFed sudo[43015]: pam_unix(sudo:session): session opened for user root(uid=0) by john(uid=1000) Mar 16 11:02:30 HPFed audit[43015]: USER_START pid=43015 uid=1000 auid=1000 ses=3 subj=kernel msg='op=PAM:session_open grantors=pam_keyinit,pam_limits,pam_keyinit,pam_limits,pam_systemd,pam_unix acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/5 res=success'
### Click on konq ikon in taskbar ### konq starts, pauses, and displays https://duckduckgo.com/?q=inode%2Fdirectory&t=kde&ia=web ### Select local folder from Bookmarks. Display is as expected
Mar 16 11:03:47 HPFed plasmashell[1642]: file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/Task.qml:286: Unable to assign [undefined] to QString Mar 16 11:03:47 HPFed systemd[1499]: Started app-kfmclient_dir-2cebe43f8e634c9e9acbefb9265f51ef.scope - Konqueror. Mar 16 11:03:47 HPFed plasmashell[1642]: file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/Task.qml:286: Unable to assign [undefined] to QString Mar 16 11:03:47 HPFed plasmashell[43060]: Launched ok, pid = 43062 Mar 16 11:03:54 HPFed konqueror[43062]: kf.service.services: KApplicationTrader: mimeType "x-scheme-handler/konq" not found Mar 16 11:04:12 HPFed konqueror[43062]: QFSFileEngine::open: No file name specified Mar 16 11:04:23 HPFed konqueror[43062]: QWidget::insertAction: Attempt to insert null action Mar 16 11:04:23 HPFed konqueror[43062]: QWidget::insertAction: Attempt to insert null action Mar 16 11:04:23 HPFed konqueror[43062]: QWidget::insertAction: Attempt to insert null action Mar 16 11:04:23 HPFed konqueror[43062]: kf.kio.core: Url QUrl("file:///var/RSG4/TScut_work") already represents a local file, cancelling job.
#### konq File -> Quit
Mar 16 11:05:16 HPFed konqueror[43062]: QDBusConnection: error: could not send signal to service "" path "//tmp/closeditems/_1.225" interface "org.kde.kconfig.notify" member "ConfigChanged": Invalid object path: //tmp/closeditems/_1.225 Mar 16 11:05:16 HPFed konqueror[43062]: QDBusConnection: error: could not send signal to service "" path "//home/john/.local/share/konqueror/closeditems_saved" interface "org.kde.kconfig.notify" member "ConfigChanged": Invalid object path: //home/john/.local/share/konqueror/closeditems_saved Mar 16 11:05:16 HPFed konqueror[43062]: QDBusConnection: error: could not send signal to service "" path "//home/john/.local/share/konqueror/closeditems_saved" interface "org.kde.kconfig.notify" member "ConfigChanged": Invalid object path: //home/john/.local/share/konqueror/closeditems_saved Mar 16 11:05:16 HPFed konqueror[43062]: QDBusConnection: error: could not send signal to service "" path "//tmp/closeditems/_1.225" interface "org.kde.kconfig.notify" member "ConfigChanged": Invalid object path: //tmp/closeditems/_1.225
^C [john@HPFed ~]$ }}}