*** This bug is a duplicate of bug 1826125 ***
https://bugs.launchpad.net/bugs/1826125
I have some doubt that this is a duplicate of bug 1826125, though I see
how they are similar. I'm experiencing the same issue described in this
bug, and the visual effect is quite different than the photos and videos
attached to the other bug. In the other one, the issue appears to
involve different parts of the display flickering around, or different
parts of the screen getting "out of sync" so it looks like there are
horizontal bands. The problem in the other bug is also described as
quite frequent/constant.
I'm not experiencing any of that, but I am experiencing what Daniel C
describes in this bug: my entire screen flashes quite brightly for a
split second, then calms back down. The effect is uniform across the
screen, there's no banding or shifting that I can see. It only happens
once every few minutes, not constantly as described in the other bug.
The flashing is most noticeable when the "Night Light" effect is active
in the evening, though I believe I've also seen it happen during the
day.
One other important distinction: like Daniel C, I have an XPS 9380 with
the non-touch 1080p display, and I wiped Dell's pre-installed 18.04 and
installed 19.04 instead. The other bug has several references in the
comments to it affecting the XPS 9380 with the "4k" display. So I
believe the flashing described in this bug is a different problem with a
different panel.
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https://bugs.launchpad.net/bugs/1827790
Title:
Dell XPS 13 9380 - Screen flashes
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