Problem with Qt Multimedia

SGaist

You are comparing apple to oranges. Both are completely different OSs with completely different multimedia backends.

I don't know what is going on with your Debian but you sure have something either misconfigured or buggy. However, it's not something Qt related. You should check with the Debian folks.

jsulm

@6EQUJ5 I would guess bad graphics driver.
You could check the output of dmesg command. In general you should ask this question in a Debian forum or mailing list and attach information about your system (especially graphics hardware).

6EQUJ5

@SGaist I will do that.

@jsulm The output of sudo dmesg is here: https://pastebin.com/VY243fPh

Also, I will ask for help on Debian mailing list/forum with the output.

SGaist

Compare it with the output of dmesg after you got kicked of your session.

6EQUJ5

@SGaist New output (after getting logged out): https://pastebin.com/yJK4tFeQ

Output of diff dmesgOutputBeforeLogout.txt dmesgOutputAfterLogout.txt: https://pastebin.com/5jGtEiUd (differences between two outputs)