KDE Plasma Version: 5.18.5
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1906823
Title:
Artifacts on the screen during reading of /dev/random
Status in linux package in Ubuntu:
Confirmed
Bug description:
Hi:
I have a weird problem where on my screen appear random white
horizontal stripes. I could describe them as a noise but it is very
noticeable when I read /dev/random file.
Steps to reproduce:
1. Enable kde composer with vsycn enabled (any method will do).
2. Open some app which has black background.
3. Execute the following: dd if=/dev/random of=/dev/null bs=4096
count=1000000 oflag=sync
Results:
Random white horizontal stripes on the screen appear. Life time of every
stripe is less 1s.
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