Forum Discussion
A warm welcome here in the Roku Community, CRusso!
Our sincerest apologies for any inconvenience this may have caused you. No worries! We're here to be of assistance in finding the best resolution to the display issues you've been experiencing.
As of now, we do not have any further updates regarding the collection of device information needed for the report.
Furthermore, in order to provide you with a precise and effective resolution, we require further information from you regarding this matter. With this being said, kindly let us know the following:
- Can you please confirm on which channel have you seen the green/purple flashes?
- When did you start seeing this happening and what troubleshooting steps have you tried to try and resolve this?
- Would you be able to provide us with a photo for reference?
We'll be anticipating your response as we are more than eager to help you resolve this.
Best regards,
Carly
- CRusso2 years agoStreaming Star
Thanks for your quick response!
The quick green flash happens on Max and maybe Hulu. I cannot anticipate when it will occur so it's practically impossible to photograph. I can describe it, though. A horizontal band flashes across the bottom 10% of the screen. That band is made up of squares in kind of a checkerboard pattern.
This does not happen when using the TV's built-in browser.
It started when I swapped out the HDMI cable supplied by Roku with a supposed high-end cable a few months ago. The flashing started at that time so I put the original Roku cable back in place, which resolved the issue until last week.
I've not tried any other troubleshooting yet but look forward to your recommendations.
Thank you,
Carl- RokuJohnB2 years agoCommunity Moderator
Hi CRusso,
Thank you for keeping us posted here in the Roku Community!
We would be delighted to help you further with this problem you are experiencing. Please try the steps below.
- Press Home on your Roku remote.
- Scroll and select Settings.
- Select System.
- Select Power. If you do not see a Power submenu, skip to the next step.
- Select System Restart.
If the problem still persists, please keep us posted.
Best regards, John
- CRusso2 years agoStreaming Star
Well, the reset worked for a few weeks but now the green flashes are back, at least on Hulu and Max. A new reset does nothing. (This is not a Dolby Vision-only problem.)
- CRusso2 years agoStreaming Star
That seems to have done the trick. Thank you!