Optoma P1 4k Laser UST @ CES - Page 66 - AVS Forum | Home Theater Discussions And Reviews
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post #1951 of 1975 Old 01-06-2020, 06:41 PM
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The lack of firmware updates for input lag and other issues (like not remember which display mode was used after switching from HDR) is quite concerning. Any news?

My Home Theater
Screen: Viewsonic BCP 120
Projector: Optoma P1
Receiver: Yamaha RX-673
Speakers: DefTech 8060-ST, KEF T101 Surrounds, SVS PB1000
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post #1952 of 1975 Old 01-07-2020, 11:30 AM
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Quote:
Originally Posted by tambur123 View Post
Has anyone managed to get HDR working at 10 bit 4:2:0 trough apple tv 4k? Weirdest thing is the fact that it works only when I reset the video settings from apple tv. All Netflix titles look washed out when HDR is enabled, like the color space is wrong. I have no problem with an older Sony UBD player or ps4.
I have this problem too. Apple TV looks washed out, including netflix. Picture looks better when viewing non HDR content. Not sure what is wrong.

It's hard to love Martin Logans and 2.35:1 CIH at the same time...
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post #1953 of 1975 Old 01-07-2020, 12:15 PM
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Good news, I got a reply from Optoma support concerning the 8 bit & 4.2.2 issue for Apple TV 4k (Case #00363067 ).

Quote:
I've escalated your question to our product manager. He will respond to your post on AVSfourm. To reduce the color banding, on the Apple TV switch it to 10 bit 4.2.2, also lower the brilliant color setting in the projector. He was also asking if you tested using the HDMI cable that came with the projector. Right now he is during further testing regarding the 8 bit & 4.2.2 he will reach out on AVSfourm.
I replied:

Quote:
It is not possible to force the color depth on the Apple TV 4k, only the Chroma, SDR/HDR and the refresh rate. When forcing the Chroma to 4.2.2 and [email protected] for all content, the results is still HDR 8 bits & 4.2.2 when displayed by the projector and the color banding is still there. Moreover, many users who want to view their content as intended by the film makers will configure their Apple TV with Match Content (Range & Frame Rate). In this mode, refresh rate and SDR/HDR is automatically configured to match the content and we still get 8 bits & 4.2.2 from the projector.

The test has been done with the Apple TV 4K directly connected to the projector with the cable provided with the projector. Also, the tests were done today with Monoprice Certified Premium HDMI Cable - Black - 6 Feet (3 Pack) [email protected] HDR 18Gbps 28AWG YUV 4:4:4 connected to a Denon AVR-X3600H with the same results.
Hopefully, we will get acknowledgement of the issue and a fix!
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post #1954 of 1975 Old 01-09-2020, 04:16 PM
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Not mine. Just giving peeps some ideas...

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post #1955 of 1975 Old 01-10-2020, 06:48 AM
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Quote:
Originally Posted by Kev1000000 View Post
The lack of firmware updates for input lag and other issues (like not remember which display mode was used after switching from HDR) is quite concerning. Any news?
As per the response I've received from Optoma rep, they have no ETA for a fix. Personally I don't know if they are aware of all the issues or if they can be fixed via firmware updates.
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post #1956 of 1975 Old 01-10-2020, 12:58 PM
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I got an acknowledgement from Optoma support yesterday about the validation of issue concerning the output of only 8 bits & 4.2.2 when using the the Apple TV 4k and that there will be a firmware fix for that (case #00363067). Their product manager is doing additional tests and should post here at one point to clarify for everybody.
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post #1957 of 1975 Old 01-12-2020, 02:11 PM
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Quote:
Originally Posted by g3m View Post
I got an acknowledgement from Optoma support yesterday about the validation of issue concerning the output of only 8 bits & 4.2.2 when using the the Apple TV 4k and that there will be a firmware fix for that (case #00363067). Their product manager is doing additional tests and should post here at one point to clarify for everybody.
Is it possible Nvidia Shield as a similar problem? Settings on the shield are UHD 23.98hz (or 60hz), 4:2:2 Rec.2020 HDR but no HDR content actually shows as HDR. Optoma will see this as Rec.709 SDR
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post #1958 of 1975 Old 01-14-2020, 08:10 PM
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post #1959 of 1975 Old 01-14-2020, 09:45 PM
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Originally Posted by gollygosh View Post
Such a frugal review, no measurements, no test patterns, no calibration notes, just a 5/5 score. I’m not even sure this qualifies as a review.
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post #1960 of 1975 Old 01-16-2020, 03:53 AM
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Quote:
Originally Posted by eedwards86 View Post
Is it possible Nvidia Shield as a similar problem? Settings on the shield are UHD 23.98hz (or 60hz), 4:2:2 Rec.2020 HDR but no HDR content actually shows as HDR. Optoma will see this as Rec.709 SDR
Color Depth

3840 x 2160 @30Hz YUV 4:4:4 (8bit, 10bit, 12bit), YUV 4:2:2
(8bit, 10bit, 12bit), YUV 4:2:0 (8bit, 10bit, 12bit)

3840 x 2160 @60Hz YUV 4:4:4 (8bit), YUV 4:2:2 (8bit), YUV
4:2:0 (8bit, 10bit, 12bit)

This are the supported fornat from Optoma P1, if you set on 60Hz 4:2:2 can be only 8bit, so no HDR, must be an option to allow downsampling at 4:2:0
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post #1961 of 1975 Old 01-16-2020, 03:56 AM
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Hey Guys, so, i had the Optoma P1 since october, in general i'm happy about, but with my XBOX ONE X i don't find a correct configuration with the games that are in HDR.
The image seem like washed and don't satisfy me.

Some one of you have an Xbox One X, which video settings do you use?

Thanks
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post #1962 of 1975 Old 01-16-2020, 07:40 AM
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Can anyone recommend a good screen or material i can buy to make my own? Looking for the best possible image and 120". Thanks.
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post #1963 of 1975 Old 01-16-2020, 12:33 PM
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I would go with a regular gray screen with low gain.
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post #1964 of 1975 Old 01-16-2020, 05:20 PM
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Quote:
Originally Posted by g3m View Post
Hi, I'm new to the forum! Sorry in advance, since this is my first post, I can't display images directly in the post, please see the attached images below.


I did some testing and it seems the Apple TV 4K, when configured with Match Content (Range & Frame Rate), will output 12 bits & 4.2.2 & HDR10 when playing [email protected] HDR content for the Optoma Cinemax P1. However, the projector doesn't seem to accept this output and will "convert it" to HDR 8 bits & 4.2.2 according to the Input Source Information Menu. This results in color banding that can be noticeable depending on the scene.

I'm not sure how the projector is displaying 8 bits color depth since HDR10 is, to my understanding, 10 bits. According to the projector datasheet, it should be able to accept 12 bits & 4:4:4 or 4:2:2 when playing [email protected] Surely, it should be the able to handle HDR content @24Hz and give a better result since color banding is a lot less noticeable on SDR content. For example, almost no color banding was perceived on Blade Runner 2049 'Ruins of Las Vegas' Scene (SDR version) on Netflix.

The testing was done using S1:EP1 of Altered Carbon (HDR title) on Netflix using the projector on a white wall (sorry for the quality, I do not have a screen yet). The Apple TV output was measured using a Denon AVR-X3600H which can display HDMI signal information from the source.

At 34:59, you can notice color banding in the sky.

The test was also done after resetting the Apple TV to default video settings. This removes any Match Content settings and defaults to an HDR output for all content, which is not "acceptable" but was done for the sake of testing purposes. In this case, the Apple TV is sending 10 bits & 4.2.0 and the same is displayed by the projector. However, the color banding is still visible, I see almost no difference.

Finally, I forced SDR on all content by changing the Apple TV video format setting. This resulted in 8 bits & 4.4.4. The color banding was greatly reduced to my eye. However, HDR was lost.

The test was also done using the Apple TV directly connected to the projector (without an AVR) and the projector still displayed color banding with HDR 8 bits & 4.2.2 when using Match Content settings.

I did some limited testing on Prime Videos HDR content with the same results.

HDMI cables are Amazon Basics High-Speed 4K HDMI Cable (3 foots). I'm waiting for certified high-speed Monoprice HDMI cables to do another batch of test, but I do not have high hopes it will change the results.

Was anyone successful at outputting better color depth and chroma on HDR content while using the Match Content settings on their Apple TV 4k? I will probably open a ticket with Optoma support to see if this is a bug.

Thank you!
Hello - sorry for the delay in response.

Apple TV 4K 4:2:2 falling to 8-bit is under investigation. We will provide an update in the near future. In the meantime - please use 4:2:0.

NOTE: Natively the projector is 10-bit 4:2:0 and will accept 4:2:2 and 4:4:4.

1. I spent a lot of time with Altered Carbon via Netflix on Apple TV 4K in 4:2:2 (currently 8-bit) and 4:2:0.

In 4:2:2 (8-bit) -- No noticeable color banding in the Sky. Color banding is more pronounced and well, looks like a band. What I believe you are referring to is the slight contouring on the far left side (clouds) -- this is the result of the white level brightness bump from HDR tone mapping AND the projector running in 8-bit mode. HDR 4:2:2 shows the effect while SDR is nearly free of the effect. Once the 4:2:2 issue has been resolved -- this should no longer be an issue. 4:2:0 is sharp and clean - no visible artifacts or banding.

In addition, your overall image quality will improve once you acquire a screen. :-)

I assume you are using the Apple TV 4K for Amazon Prime Video as well?

Yes -- bandwidth between SDR and HDR is very different -- there will always be a difference between the two in output (regardless of whether the 8-bit issue exists or not).

If there is anything else -- please let me know.
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post #1965 of 1975 Old 01-16-2020, 05:32 PM
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Quote:
Originally Posted by Christian Spiga View Post
Hey Guys, so, i had the Optoma P1 since october, in general i'm happy about, but with my XBOX ONE X i don't find a correct configuration with the games that are in HDR.
The image seem like washed and don't satisfy me.

Some one of you have an Xbox One X, which video settings do you use?

Thanks
Hello -- I use an Xbox One X with P1.

What games? If the game supports HDR, are you using the HDR tuning setting in the game? Just about every HDR game pushes you to tune the HDR image before gameplay.

In terms of Xbox settings -- 10-bit and the default color gamut is good (marked as recommended).

Under TV and Display Settings, select 4K TV Details -- take a pic and post for me. :-)
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post #1966 of 1975 Old 01-16-2020, 05:35 PM
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Quote:
Originally Posted by eedwards86 View Post
Is it possible Nvidia Shield as a similar problem? Settings on the shield are UHD 23.98hz (or 60hz), 4:2:2 Rec.2020 HDR but no HDR content actually shows as HDR. Optoma will see this as Rec.709 SDR
Hello -- in 8-bit or 10-bit HDR should work. The 4:2:2 issue we identified thus far is Apple TV 4K. I will check Shield.

What content or service are you using on Shield?
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Quote:
Originally Posted by OPTOMA PM DUDE View Post
Hello -- I use an Xbox One X with P1.

What games? If the game supports HDR, are you using the HDR tuning setting in the game? Just about every HDR game pushes you to tune the HDR image before gameplay.

In terms of Xbox settings -- 10-bit and the default color gamut is good (marked as recommended).

Under TV and Display Settings, select 4K TV Details -- take a pic and post for me. :-)
I don’t have an XBOX ONE X but I’m willing to buy one if it works ok for UBD movies. In HDR, does the projector show, under input signal, BT.2020 as the selected color space?
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post #1968 of 1975 Old Yesterday, 05:42 AM
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Anyone with insider info about the input lag being fixed for game mode anytime soon?
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post #1969 of 1975 Old Yesterday, 06:33 AM
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No matter what I stream via my Amazon 4K TV Stick, it's always 8 bit BT.709!
In the settings of the stick I enabled 12 bit and set the color to Y'CbCr. I've tried different HDR content like THE WITCHER and THE IRISH MAN but it remains 8 bit!
Is there a specific movie or series that I can try that has to should show up as 10 (or 12) bit BT.2020?


My setup is ONKYO TR-NX696 which handles all my HDMI inputs.


I now tried AVENGERS ENDGAME 4K HDR with my UHD Player. It's strange what it shows.
As you can see in the first picture the Infotab of the Optoma shows SDR content, but the Onkyo shows that it has HDR input, but when I open the Inputtab of the Optoma (second picture) it shows that it has HDR content.


Not sure if the problem is Optoma or my setup?


PS: Sorry that the pictures are upside down. On my computer they are orientated the right way, and if I turn them and upload again the are still upside down.
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Last edited by copperfield74; Yesterday at 06:59 AM.
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post #1970 of 1975 Old Yesterday, 07:28 AM
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Quote:
Originally Posted by Fedder View Post
Anyone with insider info about the input lag being fixed for game mode anytime soon?
Yes, any info at all would be appreciated @OPTOMA PM DUDE
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post #1971 of 1975 Old Yesterday, 08:18 AM
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Quote:
Originally Posted by copperfield74 View Post
No matter what I stream via my Amazon 4K TV Stick, it's always 8 bit BT.709!
In the settings of the stick I enabled 12 bit and set the color to Y'CbCr. I've tried different HDR content like THE WITCHER and THE IRISH MAN but it remains 8 bit!
Is there a specific movie or series that I can try that has to should show up as 10 (or 12) bit BT.2020?


My setup is ONKYO TR-NX696 which handles all my HDMI inputs.


I now tried AVENGERS ENDGAME 4K HDR with my UHD Player. It's strange what it shows.
As you can see in the first picture the Infotab of the Optoma shows SDR content, but the Onkyo shows that it has HDR input, but when I open the Inputtab of the Optoma (second picture) it shows that it has HDR content.


Not sure if the problem is Optoma or my setup?


PS: Sorry that the pictures are upside down. On my computer they are orientated the right way, and if I turn them and upload again the are still upside down.
I have the same behavior with my Nvidia Shield. That indicator that shows when it starts playing in your second picture, is always correct. The info tab isn't. The info tab also will give different SDR HDR info depending on if you're displaying 24hz or 60hz material. It would be nice to know if we're displaying bt2020 color space on our screens or not.
Another observation, Puremotion and 2160p 24hz playback has audio sync problems. Puremotion and 2160p 60hz works fine.
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post #1972 of 1975 Old Yesterday, 09:19 PM
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Do you guys recommend this screen

https://www.carlofet.com/shop/projector-screen-material?screen_material=Ambient+Light+Rejecting+% 28ALR%29&aspect_ratio=16%3A9&finished_edge=Raw+Mat erial&seam=Seamless&packaging=Rolled+on+a+Tube&siz e=135"+%2867x118%29

Or

https://www.amazon.com/STR-169120-Si...=alr+sc&sr=8-4

Or any others below $300.
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post #1973 of 1975 Old Yesterday, 09:37 PM
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Quote:
Originally Posted by g4s View Post
Quote:
Originally Posted by copperfield74 View Post
No matter what I stream via my Amazon 4K TV Stick, it's always 8 bit BT.709!
In the settings of the stick I enabled 12 bit and set the color to Y'CbCr. I've tried different HDR content like THE WITCHER and THE IRISH MAN but it remains 8 bit!
Is there a specific movie or series that I can try that has to should show up as 10 (or 12) bit BT.2020?


My setup is ONKYO TR-NX696 which handles all my HDMI inputs.


I now tried AVENGERS ENDGAME 4K HDR with my UHD Player. It's strange what it shows.
As you can see in the first picture the Infotab of the Optoma shows SDR content, but the Onkyo shows that it has HDR input, but when I open the Inputtab of the Optoma (second picture) it shows that it has HDR content.


Not sure if the problem is Optoma or my setup?


PS: Sorry that the pictures are upside down. On my computer they are orientated the right way, and if I turn them and upload again the are still upside down.
I have the same behavior with my Nvidia Shield. That indicator that shows when it starts playing in your second picture, is always correct. The info tab isn't. The info tab also will give different SDR HDR info depending on if you're displaying 24hz or 60hz material. It would be nice to know if we're displaying bt2020 color space on our screens or not.
Another observation, Puremotion and 2160p 24hz playback has audio sync problems. Puremotion and 2160p 60hz works fine.

Sooo after all these faults, are you guys still happy with the projector? I havent opened mine due to a %15 restocking fee if I open it. I want to so bad, but so many complaints. I was just about to open it tonight then I came here. I have until Feb 2nd. What should I do?
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post #1974 of 1975 Old Yesterday, 10:30 PM
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Quote:
Originally Posted by legnaz View Post
Sooo after all these faults, are you guys still happy with the projector? I havent opened mine due to a %15 restocking fee if I open it. I want to so bad, but so many complaints. I was just about to open it tonight then I came here. I have until Feb 2nd. What should I do?
Definitely! If I’d knew all this before placing my preorder I’ll still do it. The image that this thing displays it’s a sight to behold.
There are only 2 complaints that I’m aware of: HDR not working properly and higher input lag than 50ms advertised.

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post #1975 of 1975 Old Today, 01:25 AM
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Quote:
Originally Posted by legnaz View Post
Sooo after all these faults, are you guys still happy with the projector? I havent opened mine due to a %15 restocking fee if I open it. I want to so bad, but so many complaints. I was just about to open it tonight then I came here. I have until Feb 2nd. What should I do?
Definately but get a good screen. Have a bright white room with huge windows in all directions and a 120" ALR, great image when dark, perfectly ok with all the lights on but crap and really washed out during both indirect and direct sunlight. Personally I'm considering a 100" limited fresnel now but much more expensive.

Also, to avoid green image flicker in spite of good cables (drove me crazy and was about to reutrn my unit) immediately change the video settings yourself or use the settings posted by Christian Spiga in post #1799 . Haven't investigated this but for me it seems the CINEMA mode is causing the green flicker and once you change to user settings the flicker is gone. Will have my unit calibrated once it has hundredish hour on it. Enjoy!
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