Channel Issues & Questions

Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
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onepcwhiz
Level 7

Roku Ultra 4K Videos on Youtube

I noticed a problem starting last night.

Youtube videos on the official Youtube Roku channel that have a 4K on them only show a green screen on my 1080P TV (Element Electronics).

Is this something than can be fixed?

I'm really not ready to buy a 4K TV just for this issue.

Thanks in advance.
Roku Ultra 4660
Roku XDS (2100)
0 Kudos
7 Replies
atc98092
Level 13

Re: Roku Ultra 4K Videos on Youtube

Just tried my Ultra (model 4640) with 4K HDR videos from YouTube and had no issue. The TV is a Panasonic ST30 1080 plasma, so pretty much the same scenario as yours. I have seen a green screen in the past, and it was a bad HDMI cable. 
Dan
Nvidia Shield, Roku Stick (3600), Ultra (4640), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.
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onepcwhiz
Level 7

Re: Roku Ultra 4K Videos on Youtube

Thanks for the reply.
I just tried the same video with my PS3 and it displayed fine.

So I switched my Roku to the HDMI cable going to my PS3 and it shows a green screen.
That tells me it's not the TV or the cable.

FYI.. my Roku Ultra is a 4660X2 (SN YJ001U286197).

Oh, and I changed from Auto-detect to 1080p in the Roku config screen.  Made no difference.

The actual video I'm trying to play is 
https://www.youtube.com/watch?v=6aqACTCfNyw&

Thanks again.
Roku Ultra 4660
Roku XDS (2100)
0 Kudos
WhereYou
Level 7

Re: Roku Ultra 4K Videos on Youtube

Set the resolution of the signal source to 1080P.
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onepcwhiz
Level 7

Re: Roku Ultra 4K Videos on Youtube

There's no setting that I've seen for the "source" resolution.

Only the display type on the config settings screen of the Roku.

Thanks
Roku Ultra 4660
Roku XDS (2100)
0 Kudos
atc98092
Level 13

Re: Roku Ultra 4K Videos on Youtube

Correct, there's no adjust possible for source content resolution. 
Dan
Nvidia Shield, Roku Stick (3600), Ultra (4640), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.
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onepcwhiz
Level 7

Re: Roku Ultra 4K Videos on Youtube

Okay now videos on Youtube marked 4K display fine.

I don't know why.

My only guess is a restart of the Roku I did a couple of days ago because it seemed to be acting sluggish might have fixed it (the sluggishness actually turned out to be a PC problem.  My PC running my Plex server was bogged down and wasn't able to stream videos and I thought it was the Roku).

I tried another 4K video today and it displayed fine.  I then went back to the other 4K videos that I had previously had display issues with and they played fine!.

A head scratcher for sure but at least it has a happy ending!  Smiley Happy

Thanks all!
Roku Ultra 4660
Roku XDS (2100)
0 Kudos
onepcwhiz
Level 7

Re: Roku Ultra 4K Videos on Youtube

Interesting...  It started doing the same thing again after several weeks of working fine.

Green screen on videos marked 4K in Youtube.

So I did an immediate restart of the Roku, and it's now working fine.

Displaying 4K videos normally.

Odd that the problem came back but at least it's consistent that a restart of the Roku fixes it.

To be continued.. ?

Later all.
Roku Ultra 4660
Roku XDS (2100)
0 Kudos