If lowering the resolution or refresh rate solves it then most likely
you need a higher quality HDMI cable.
I say HDMI cable because those usually have the most quality problems,
whereas DisplayPort does not.
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Bugs, which
Same setup as #2
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2065250/comments/2
The failing monitor is 1080p old NEC MustySync EA231EMi
The main monitor is 4K, it has no issues
Lowering resolutions to 1600x900 on failing monitor or 1080p on 4k monitor
solves the issue
Lowering refresh
Balaji, please try reducing the screen resolution and/or refresh rate.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: flicker
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I am using a pc with dual monitor. My second monitor with a hdmi cable
was flickering with each mouse movement. I have changed its frequency
from 60Hz to 50Hz flickering gone. My firs monitor is 4K
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** Tags added: i915 multimonitor
** Package changed: xorg (Ubuntu) => linux (Ubuntu)
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https://bugs.launchpad.net/bugs/2065250
Title:
My external Diplay Flickers
To manage
** Package changed: ubuntu => xorg (Ubuntu)
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https://bugs.launchpad.net/bugs/2065250
Title:
My external Diplay Flickers
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** Information type changed from Private Security to Public
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https://bugs.launchpad.net/bugs/2065250
Title:
My external Diplay Flickers
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