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Bug#1068020: Background process seemingly paused

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  Bug#1068020: Background process seemingly paused Terrance Hendrik <terrance.hendrik@gmail.com> - 2024-03-29 20:00 +0100

#82134 — Bug#1068020: Background process seemingly paused

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Package: linux-image-amd64
Version: 6.6.15-2

Debian testing/trixie, kernel 6.6.15-2 (2024-02-04)
xfce

Case 1:

Start a command that runs for a long time, say `ffmpeg`. switch to other
programs, i.e. web browser or other terminal windows, and keep using the
computer. After a while, ffmpeg cpu usage drops to 0%, switch back to
ffmpeg's terminal window, it will go back to running.

Case 2:

start ffmpeg, leave the computer untouched, then screensaver runs, then the
display turns off. No suspend, no hibernate, no shutdown. after a while,
wake up display, unlock session, ffmpeg is using 0% CPU. switch back to its
terminal window, it resumes.


I am not sure which package is causing this. This happened long before
6.6.15 kernels.

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