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after a month of phone calls and struggling with tivo (yeah, terrible company imo) i finally got through to an engineer at tivo who told me that the hdcp handshake on a tivo lasts longer and some displays fall just under the hdcp handshake timeframe (100ms) so do not negotiate correctly. I ended up borrowing a $300 hdcp stripper from another install company and it fixed the problem, image defaulted to 2160p and with a bit of further color adjustment which was different than the 1080p settings to get it right, Im finding the picture to look really great. Optoma has agreed to look into the hdcp programming (they have been rather helpful) and see if theres a solution so that other users wont find the same issue.
 

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does any body know if the UHD52ALV suffers the same problem as the optoma uhd 40 meaning does half the screen go black now and then , only way to get full screen back is to restart the projector
thank you
update the keystone was the problem 0 setting everything works fine
 

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hello, i'm considering buying this vpr or UHD51 and i need some information.

Should the pixel shifting process be activated (as in benq w2700) or is it always activated?

Is pixel shifting noisy?

does pure motion also work during pixel shifting? (in the benq w2700 only pixel shifting works is disabled)

Is it possible to have a photo of the pixel matrix? also a screenshot of the menu where I can see the text

Thank you very much
 

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hello, i'm considering buying this vpr or UHD51 and i need some information.

Should the pixel shifting process be activated (as in benq w2700) or is it always activated?

Is pixel shifting noisy?

does pure motion also work during pixel shifting? (in the benq w2700 only pixel shifting works is disabled)

Is it possible to have a photo of the pixel matrix? also a screenshot of the menu where I can see the text

Thank you very much
4K is always on, unless disabled. Puremotion works with 4K content.

Pixel shifting should be silent, or nearly so.
 

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Ive owned projectors for 20 years, I install them as part of my business, Ive seen and done a lot of projection. 2 months with my uhd52alv projector update:

So far I find this to be a very good projector. It took a lot of dialing in to get it how I wanted it. Contrast and brightness in the -8 and -4 range seems to be about right. Brilliant color between 2 and as much as 5, ive settled on 4. I did have to fight getting it to play nice with my tivo which ended up requiring a xantech hdmi handshake solver, which I luckily had around. However upon connecting to a roku or apple tv everything worked just fine. Colors are rich and realistic while being bright enough to light up a screen in most lighting conditions (with obvious expected issues as room lighting got brighter). Hdr switches automatically and looks great. I found it better than the 3550 i tried and much better than how the uhd60 handles hdr.

Things that arent great: first, as expected, the blacks are pretty grey. It tricks your eyes pretty well because whites are so white. This will be the achilles for current generation dlp, but i preferred the projector size, fan noise, and motion handling to the epson offerings. The next con is the 3d handling. there is no way to select how 3d is going to be displayed so it will only work from sources like bluray that send edid info on the 3d content which so far i have been unable to get plex or a computer to accomplish. Next, the lens shift is very minimal. I have my screen lower and only 8' ceilings and would still need a 1" down tube on the mount to get the projector low enough. Im not looking for a ton of lens shift from a mid priced projector but a little bit more would be nice.

Summary: happy with the image overall, blacks are rather grey, 3d doesnt work at all for me (where it did on previous optoma projectors), and the lens shift is far to small. Its a really tough call between the tk850 and the optoma in this price/brightness class but I personally prefer the more natural colors on the optoma to the slightly over saturated colors on the benq, your opinion may vary.
 

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The next con is the 3d handling. there is no way to select how 3d is going to be displayed so it will only work from sources like bluray that send edid info on the 3d content which so far i have been unable to get plex or a computer to accomplish.

@Frost, did you contact Optoma about unable to play 3d from a computer?
 

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@Frost, did you contact Optoma about unable to play 3d from a computer?
Ive spent hours on the phone with Alfred from optoma discussing why the uhd52 couldnt properly handshake 4k material with a tivo (still unsure if its an optoma or a tivo problem, tivo is actually a pretty poor quality device but one way or another they dont work together). And discussing why optoma chose to change the 3d setting from user selectable to requiring an edid. There is no optoma solution at this time.
 

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Ive spent hours on the phone with Alfred from optoma discussing why the uhd52 couldnt properly handshake 4k material with a tivo (still unsure if its an optoma or a tivo problem, tivo is actually a pretty poor quality device but one way or another they dont work together). And discussing why optoma chose to change the 3d setting from user selectable to requiring an edid. There is no optoma solution at this time.
Is this really a problem or simply tech moving on. These new projectors work great for most bluray players. If recording is the issue, then all cable boxes record that I know of. Players have to be 4k compatible, like bluray players. If bluray players are up-scalable to 4k, they still won't show 4K videos, just 1080p movies upscaled to a 4k TV. Is your Tivo 4k capable or 4k scalable or simply 1080p. Don't blame Optoma, your Tivo is most likely outdated--and I have a lot of that sitting around...:eek:.
 

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Is this really a problem or simply tech moving on. These new projectors work great for most bluray players. If recording is the issue, then all cable boxes record that I know of. Players have to be 4k compatible, like bluray players. If bluray players are up-scalable to 4k, they still won't show 4K videos, just 1080p movies upscaled to a 4k TV. Is your Tivo 4k capable or 4k scalable or simply 1080p. Don't blame Optoma, your Tivo is most likely outdated--and I have a lot of that sitting around...:eek:.
my tivo is a 9 month old bolt, which has 4k and hdr. its not old tech. Its also the case that new tech sometimes doesnt play nice. I dont have cable, from my understanding tivo sends two hdcp handshakes, one for tv and one for streaming and that likely the projector isnt 'listening' for quite long enough. Other people have this issue with their tivo's too, but my other 4k tv's work just fine, so honestly I think its both the tivo and the optoma doing it wrong or at least different. The only reason Im not happy about it is that I wanted all of my tv to come from one source which in theory the tivo is great for, however, the app creators arent putting nearly the resources into tivo as they are apple and android boxes. Ive added a roku ultra and it seems to be working really well for what I want it to do.
 

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And discussing why optoma chose to change the 3d setting from user selectable to requiring an edid. There is no optoma solution at this time.
This is a bummer. I was going to get this pj connected to PC for playing all sorts of videos from NAS including 3d.
 

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Windows display resolution, 3840x2160 or 1920x1080?

A question I have to anyone who has connected a PC to 52alv for 4K movie. What is the display resolution I will need to set with Windows 10, 3840x2160? As the native resolution of the pj is still 1920x1080, will Windows desktop be displayed clearly when resolution is set to 3840x2160?
 

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A question I have to anyone who has connected a PC to 52alv for 4K movie. What is the display resolution I will need to set with Windows 10, 3840x2160? As the native resolution of the pj is still 1920x1080, will Windows desktop be displayed clearly when resolution is set to 3840x2160?
The 'native resolution' of the DMD is not 1920 x 1080 when XPR is active.

Use 3840x2160 @ 60hz or 30hz, if your PC supports it. On my UHD50, this provides much better sharpness
 

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This is a bummer. I was going to get this pj connected to PC for playing all sorts of videos from NAS including 3d.
a windows pc may work as it can send the 3d edid if you set it correctly, however plex will not so youre just opening the file with vlc etc which isnt very elegant.
 

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my tivo is a 9 month old bolt, which has 4k and hdr. its not old tech. Its also the case that new tech sometimes doesnt play nice. I dont have cable, from my understanding tivo sends two hdcp handshakes, one for tv and one for streaming and that likely the projector isnt 'listening' for quite long enough. Other people have this issue with their tivo's too, but my other 4k tv's work just fine, so honestly I think its both the tivo and the optoma doing it wrong or at least different. The only reason Im not happy about it is that I wanted all of my tv to come from one source which in theory the tivo is great for, however, the app creators arent putting nearly the resources into tivo as they are apple and android boxes. Ive added a roku ultra and it seems to be working really well for what I want it to do.
@Frost, I should have read your previous posts before I responded. You are obviously a well seasoned user. :rolleyes: I had a lot of issues with my 51ALV when first got it. I tried three different hdmi cables and finally found one that worked without glitching. These all were hdmi 2.0 cables handling 4k 60fps--some cables can only handle 4k 30fps. There is an EDID switch through the menu (see page 27 of your manual) to switch to 1.4 hdmi if colors don't look right, especially for 3D, since 3D is 1.4 compliant. 4k requires 2.0, though I believe, and it defaults to 2.0. Another issue is what you turn on first. I usually turn on the projector first, then the bluray player, but sometimes that doesn't work, especially for 3D. While it doesn't make intuitive sense, the cable that finally worked, was not the best cable I had, and if you go over 15 feet, you can have all kinds of issues. Have you tried different cables? Looks like you have a top of the line cable, but you never know. Cheers...and stay safe.
 

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@Frost, I should have read your previous posts before I responded. You are obviously a well seasoned user. :rolleyes: I had a lot of issues with my 51ALV when first got it. I tried three different hdmi cables and finally found one that worked without glitching. These all were hdmi 2.0 cables handling 4k 60fps--some cables can only handle 4k 30fps. There is an EDID switch through the menu (see page 27 of your manual) to switch to 1.4 hdmi if colors don't look right, especially for 3D, since 3D is 1.4 compliant. 4k requires 2.0, though I believe, and it defaults to 2.0. Another issue is what you turn on first. I usually turn on the projector first, then the bluray player, but sometimes that doesn't work, especially for 3D. While it doesn't make intuitive sense, the cable that finally worked, was not the best cable I had, and if you go over 15 feet, you can have all kinds of issues. Have you tried different cables? Looks like you have a top of the line cable, but you never know. Cheers...and stay safe.
Yeah, tivo is just known to deal with handshakes poorly and the 3d part, theres literally no way to select it myself, it has to come from the edid which plex doesnt send. I do a lot of huge scale projection as part of my business, so Im pretty versed in how to get this done, but when hdcp issues come up theres little one can do as a consumer. In the end, an expensive hdcp stripper and adding a roku ultra got this all working nicely. The picture looks great. I dream of inky black blacks and even brighter brights but thats just not the state of where we are at in technology yet. all in all, the picture is sharp, and bright with realistic colors.
 

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Yes, blacks are relative. I have brightness at 0 and contrast at 50 and different gamma for different movie types, mostly Cinema for movies and Graphics or Video for 3D. I use a Sony bluray for 3D, and it's the best 3D I've seen in all the years I've had projectors. And of course, my 51ALV has the dead-sea of pixels around the image--don't bother me though as they fall on a dark wall outside my screen.
 

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Yes, blacks are relative. I have brightness at 0 and contrast at 50 and different gamma for different movie types, mostly Cinema for movies and Graphics or Video for 3D. I use a Sony bluray for 3D, and it's the best 3D I've seen in all the years I've had projectors. And of course, my 51ALV has the dead-sea of pixels around the image--don't bother me though as they fall on a dark wall outside my screen.
they must have changed the brightness and contrast settings as mine are centered at 0 and i dont think even go up to 50. mine are -4 brightness -8 contrast in cinema mode. I used tools to set that.
 
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