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While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1906823
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
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the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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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:
Incomplete
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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