At times qterminal hangs for a while.

[shirishag75]

For reasons unknown at times, qterminal hangs for a while. It is almost as the focus on qterminal has been lost.

The only option is to click on the tabs for a while (fiddle around) and then the focus returns to the terminal and you can use it as you were using before.

Package: qterminal
Version: 0.14.0really0.9.1~156-ga968cc4-1
Severity: normal

-- System Information:
Debian Release: buster/sid
APT prefers testing-debug
APT policy: (500, 'testing-debug'), (500, 'testing'), (100, 'unstable-debug'), (100, 'experimental-debug'), (100, 'experimental'), (100, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.18.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_IN, LC_CTYPE=en_IN (charmap=UTF-8), LANGUAGE=en_IN:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages qterminal depends on:
ii libc6 2.27-6
ii libqt5core5a 5.11.1+dfsg-9
ii libqt5dbus5 5.11.1+dfsg-9
ii libqt5gui5 5.11.1+dfsg-9
ii libqt5widgets5 5.11.1+dfsg-9
ii libqt5x11extras5 5.11.1-2
ii libqtermwidget5-0 0.14.0really0.9.1~71-g871d069-1
ii libstdc++6 8.2.0-7
ii libx11-6 2:1.6.7-1

Versions of packages qterminal recommends:
ii qterminal-l10n 0.14.0really0.9.1~156-ga968cc4-1

qterminal suggests no packages.

-- no debconf information

[shirishag75]

just right now it happened again, this was after I had closed after the confirmation box of closing all the tabs and shutting off/down qterminal but still it/the image hung around, after a minute or so the image disappared. Maybe some sort of garbage collection issue or something else, have no clue .

[tsujan]

Unlike a crash, a hang is something that should be reproducible for it to be fixed. I'm afraid, unless you describe a way of reproducing it, nothing could be done.

I use qterminal -- and only qterminal -- on a regular basis. As a developer, I have to compile programs a lot and I do it only with qterminal -- for example, minutes ago, I was using qterminal and minutes later, I'll use it again -- but I've never encountered a hang.

but still it/the image hung around, after a minute or so the image disappeared.

Which image?

[shirishag75]

image of the terminal.

[tsujan]

Then it's totally unrelated to qterminal or LXQt. I guess something is wrong with the WM and/or compositor you use or, perhaps, the compositor -- if any -- isn't configured correctly.

I close this but feel free to add comments.

[tsujan]

The first thing I would check if I were you is whether 2 compositors are active. There are many other possibilities too.

[shirishag75]

how do I check that ? According to Stephen Kitt in a similar question asked said there can only be one compoistor active at any one time, although I have asked the same at https://unix.stackexchange.com/questions/479222/is-there-a-way-to-know-if-more-than-one-compositor-is-running-in-a-session

[tsujan]

how do I check that ?

You could check LXQt Session Settings. If your Window Manager has a compositor (like kwin does), no other compositor (like Compton) should have been enabled there.

Please note that what I said was just one guess among many. Since you said you saw the "hung image" of qterminal, a problem with compositing came to my mind but, of course, I can't be sure.