>> /usr/libexec/xdg-desktop-portal[7391]: A backend call failed: Inhibiting
>> other than idle not supported
>
>Please provide more information:
>What desktop are you using?
Mate
>Does this happen immediately after restarting your computer without
>running any other apps?
I seldom restart this box. The first such message is logged on 2026-07-28
11:45, which is far away from any dpkg installation or update, and I see
nothing apparent in the logs before that time. At that time I was regularly
working on this box, and I don't remember noticing anything strange.
>Is there anything interesting in the output of systemd-inhibit ?
I did not know about systemd-inhibit. I do not see anything suspicious, but
again I do not know how it usually behaves
WHO UID USER PID COMM WHAT
WHY MODE
NetworkManager 0 root 1744 NetworkManager sleep
NetworkManager needs to turn off networks delay
Realtime Kit 0 root 1539 rtkit-daemon sleep
Demote realtime scheduling and stop canary. delay
UPower 0 root 563180 upowerd sleep
Pause device polling delay
pot 1000 pot 7558 mate-power-mana
handle-power-key:handle-suspend-key:handle-lid-switch Mate power manager
handles these events block
teams-for-linux 1000 pot 3434946 teams-for-linux sleep
Application cleanup before suspend delay
xscreensaver 1000 pot 7561 xscreensaver-sy sleep
lock screen on suspend delay
6 inhibitors listed.
>Is there anything related in your systemd journal (maybe run sudo journalctl
>-b )
No, boot was far away.
Looking at the logs, something made me suspicious and I restarted
telegram-desktop, which stopped the behaviour that I had reported.
Here are the lines in syslog that relate to telegram-dsktop after restart:
dbus-daemon[6168]: [session uid=1000 pid=6168 pidfd=5] Activating service
name='org.telegram.desktop' requested by ':1.35' (uid=1000 pid=7501
comm="mate-panel" label="unconfined")
dbus-daemon[6168]: [session uid=1000 pid=6168 pidfd=5] Successfully activated
service 'org.telegram.desktop'
org.telegram.desktop[4025135]: error: empty dic file
org.telegram.desktop[4025135]: Hash Manager Error : 2
org.telegram.desktop[4025135]: QPainter::begin: Paint device returned engine ==
0, type: 2
org.telegram.desktop[4025135]: QWidget::render: Cannot render with an inactive
painter
org.telegram.desktop[4025135]: QRhiGles2: Failed to make context current.
Expect bad things to happen.
dbus-daemon[6168]: [session uid=1000 pid=6168 pidfd=5] Activating service
name='org.freedesktop.Notifications' requested by ':1.701' (uid=1000
pid=4025135 comm="/usr/bin/telegram-desktop" label="unconfined")
