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Constant screen flashes, constantly have to change display settings.
I have a Roku Ultra LT 4801RW (purchased 11/2024) on a 2019 LG TV in my RV. I’m constantly having to switch the display settings from 720 to 1080 to Automatic due to continuous screen flashing.
Just now I turned the TV & Roku on & the screen was flashing so bad I couldn’t hardly maneuver through the menus to change the display setting AGAIN. The setting was on “Automatic 1080” and I changed it to 720p & the flashing stopped.
Why is this flashing constantly happening where I have to change the display settings back & forth?

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Re: Constant screen flashes, constantly have to change display settings.
Hey @dosbirn,
Thank you for posting here in the Roku Community!
If you have the Auto Refresh Rate enabled, try disabling it (this should stop the screen from flashing).
Settings/System/Advanced System Settings/Auto-Adjust Display Refresh Rate/ [Off ]
We hope this helps. Please let us know if there's anything else we can do to assist you.
Cheers,
The Roku Community Team
Roku Community Moderator
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Re: Constant screen flashes, constantly have to change display settings.
Thank you for the fast response. However, my “Auto-adjust display refresh rate” is already set to OFF.
My screen appears to be flashing again but much less frequently than it was yesterday (when I made this post).
I will turn the refresh rate ON, exit & wait a bit & then turn it OFF again & see if that makes a difference.
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Re: Constant screen flashes, constantly have to change display settings.
Actually, turning it ON seems to have stopped the flashing. I’ll leave it ON & see if this fixes it. Thanks!
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Re: Constant screen flashes, constantly have to change display settings.
I am having the same issue with my Roku express. Did u fix nd a solution?

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Re: Constant screen flashes, constantly have to change display settings.
Hi @dosbirn,
Thanks for keeping us posted!
Just wanted to drop you a line to say that if you are still having trouble or feel like your issue has not been fixed, please let us know.
And don't forget, you can always get help at support.roku.com when you need it.
Thanks,
Roku Community Team
Roku Community Moderator

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Re: Constant screen flashes, constantly have to change display settings.
Hi @Joylene6,
Greetings from the Roku Community!
Please try the troubleshooting steps above and see if that will work.
Keep us posted on what you find out.
Cheers,
Roku Community Team
Roku Community Moderator
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Re: Constant screen flashes, constantly have to change display settings.
Turning “Auto-adjust display refresh rate” on & off again didn’t fix it. I still alternate between 720 & 1080 when it starts flashing. I try to leave it on 1080 after switching it.
I have a feeling it has something to do with my LG TV resetting something because I have Rokus on a Vizio LED, Samsung LED & Panasonic plasma TVs & they never do this. It always seems to happen right after I turn on the LG TV or a few minutes after. I looked through the LG set up but couldn’t find anything related to resolution or display refresh.
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Re: Constant screen flashes, constantly have to change display settings.
No, nothing has worked. See my latest reply. Do you have an LG TV? It might be my problem.
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Re: Constant screen flashes, constantly have to change display settings.
I am having the same issue with my Roku express. Did u find a solution?