View Full Version : HD70, new 30 foot HDMI cable, not taking 1080p signal
Nethervue 04-05-09, 07:53 AM Hey guys. I've had my HD70 hooked up to my PS3 for a year or so. I used to run it with a 12 foot monoprice cable, PS3 was set to 1080p and it worked great. I just decided to change the room up a bit and am now using a 30 foot monoprice cable that I picked up from a friend of mine (not sure the model # of monoprice cable), Since going to the longer cable, if the PS3 is set to 1080p, I get "No Signal". If I set it to 720p, I get a pic.
So, since this is a native 720 projector, I'm guessing I'm not losing anything by not sending it a 1080p 24 signal...correct? That said, is there something wrong with the cable and would I be getting the best pic quality? I guess I'm saying if it can't pump out the 1080p, can I be positive that its even sending out the 720 fully? I have all the wires run and tucked away, really do not want to change it out...unless I am missing something by it not being run at 1080p 24 signal.
reconlabtech 04-05-09, 08:33 AM You need the heaviest gauge HDMI cable Monoprice sells or a certified cable from Monoprice or BlueJeanCables.com
Nethervue 04-05-09, 09:17 AM For 1080p...ok. But, with an HD70, does it matter? I'd rather not tear everything out to replace the cable if its not going to make a difference with an HD70. It does display 720p. Am I losing anything by not sending a 1080p 24 on a 720p projector?
jarrod1937 04-05-09, 10:21 AM For 1080p...ok. But, with an HD70, does it matter? I'd rather not tear everything out to replace the cable if its not going to make a difference with an HD70. It does display 720p. Am I losing anything by not sending a 1080p 24 on a 720p projector?
Nope, you're missing nothing. In fact sending your native 720p display 1080p will probably degrade the image, if there is any difference.
eightninesuited 04-05-09, 10:22 AM Probably not. And it is the thickness of the cable. I'm running a 35ft monoprice 22AWG and it sends 1080p fine into my HD70. Though I send it 720p.
Nethervue 04-05-09, 12:25 PM Thats great news for me! Thanks guys!
reconlabtech 04-05-09, 12:38 PM Actually, sending 720p to the 720p PJ only looks better than sending 1080i/p IF the scaler in your equipment is better than the scaler chipset in the HD70. You have to look at both results and decide which you like better.
If it's easier to just send 720p because you don't want to replace the cable, then don't worry about it.
jarrod1937 04-05-09, 01:02 PM Actually, sending 720p to the 720p PJ only looks better than sending 1080i/p IF the scaler in your equipment is better than the scaler chipset in the HD70. You have to look at both results and decide which you like better.
If it's easier to just send 720p because you don't want to replace the cable, then don't worry about it.
Thats wrong.
If the source (like a video game) is "rendered" at 720p, then no matter the scaler 720p will look better than 1080p. Same goes with bluray, the main codec used for bluray video encodes a lower spatial resolution version of the 1080p max video in sub-bitstreams, in which case it is best to have the bluray player itself set to output 720p because it can derive the 720p video by working directly with the codec. Hence that again, the source output will be 720p native, and so it should be outputted as 720p.
Any time the source is 720p you want to output 720p. Even if you're scaling a non-720p source (like a dvd) you still want to avoid having your device send 1080p if your display is 720p, otherwise you'll be upscaling the video to 1080p, then have it sent to the projector which will be forced to scale it to 720p, so you might as well send the projector its native res and avoid any unneeded scaling. I think what you're referring to is having a lower non-720p source and sending it upscaled to 720p if the dvd player is better at upscaling, or send the video at 480p and allow the projector to do the upscaling if it is better... but you never want to set your dvd player to upscale the video to 1080p and send it to your 720p native display, because it will result in a degraded image from unneeded upscaling and downscaling.
reconlabtech 04-05-09, 01:31 PM 1080i renders better on my HD70 than if I set my Dish network receiver to 720p or if I set my HD-A2 to 720p. So, I always send 1080i/p to my HD70.
So, in this case, I'm not wrong.
You can choose to believe what you want.
The greater number of REAL pixels in the 1080i/p signal allows the HD70 to pick a better image when scaling.
jarrod1937 04-05-09, 01:43 PM 1080i renders better on my HD70 than if I set my Dish network receiver to 720p or if I set my HD-A2 to 720p. So, I always send 1080i/p to my HD70.
So, in this case, I'm not wrong.
You can choose to believe what you want.
The greater number of REAL pixels in the 1080i/p signal allows the HD70 to pick a better image when scaling.
You're wrong, but i am not here to argue which you "feel" is better. If you like it that way, then good for you. Though, you're not wrong if the source material is 1080p/i, in which case the scaler will matter... but the entire discussion thus far have been about 720p native material. If the channel you're viewing is sending 1080i, then it will come down to which does things better, the projector or the dish receiver. However, if the channel is being sent in 720p, then sending it to your hd70 as 1080i will result in a worse image.
"The greater number of REAL pixels in the 1080i/p signal allows the HD70 to pick a better image when scaling."
Exactly, but isn't no scaling better than doing any scaling? Answer is yes, so if you have a 720p native material DON'T scale it at all and you will get the best picture. And as i stated above, you should never scale a lower than 720p image to 1080p, as that too will result in a worse image.
The only time a scaler would matter when sending 1080p to a 720p display is only if the material is 1080p/i, any other situation and you're degrading the image.
reconlabtech 04-05-09, 03:23 PM Hey guys. I've had my HD70 hooked up to my PS3 for a year or so. I used to run it with a 12 foot monoprice cable, PS3 was set to 1080p and it worked great. ...
Since going to the longer cable, if the PS3 is set to 1080p, I get "No Signal"...
So, since this is a native 720 projector, I'm guessing I'm not losing anything by not sending it a 1080p 24 signal...correct? ....
You're wrong, ...
but the entire discussion thus far have been about 720p native material. If the channel you're viewing is sending 1080i, then it will come down to which does things better, the projector or the dish receiver...
The only time a scaler would matter when sending 1080p to a 720p display is only if the material is 1080p/i, any other situation and you're degrading the image.
Hmmm...
Reading the OP, he said he had his PS3 hooked up and set to 1080p with a 12 foot cable but when he changed to 30 feet, the longer cable couldn't support 1080p.
Looks like you need to go back and read a little closer.
Why would anyone take a native 720p signal and push it up to 1080 just to rescale back to 720?
You blew it on this thread jarrod. I'd hold your "You're wrong" designations back until you understand the thread better. Don't worry, it happens...
jarrod1937 04-05-09, 03:44 PM Hmmm...
Reading the OP, he said he had his PS3 hooked up and set to 1080p with a 12 foot cable but when he changed to 30 feet, the longer cable couldn't support 1080p.
Looks like you need to go back and read a little closer.
Why would anyone take a native 720p signal and push it up to 1080 just to rescale back to 720?
You blew it on this thread jarrod. I'd hold your "You're wrong" designations back until you understand the thread better. Don't worry, it happens...
Hmmm... perhaps you have taken this thread a bit personally? And you're still wrong, he stated that he was using 1080p, but he also stated he is using an hd70, a 720p native display. Just because he stated he was using a 1080p signal does not make it correct, and which is why he asked:
"So, since this is a native 720 projector, I'm guessing I'm not losing anything by not sending it a 1080p 24 signal...correct?"
And, indeed he is correct. As his source will be a 720p native source (read my part of game renders and bluray codecs).
reconlabtech 04-05-09, 03:54 PM You claimed this was about 720p native material NOT display.
You said, "You're wrong" not "that's wrong".
Strike two dude.
jarrod1937 04-05-09, 04:02 PM You claimed this was about 720p native material NOT display.
You said, "You're wrong" not "that's wrong".
Strike two dude.
I think you're grasping at straws at this point.
This entire discussion is based on 720p source material with a 720p display (the hd70 mentioned several times in this thread). So, what is your point? I'm actually not even sure if your reply here makes any sense.
jarrod1937 04-05-09, 04:14 PM I think you're confusing the issue (intentionally or not). Your original claim was:
"Actually, sending 720p to the 720p PJ only looks better than sending 1080i/p IF the scaler in your equipment is better than the scaler chipset in the HD70."
But, if the material can be derived to be 720p, then your should set your source (the ps3) to be 720p, so when it is sent to the projector, the projector receivers 720p. Why would you set your source to output 1080p if its only going to have to be downscaled when it gets to the projector? That makes no sense and will result in a worse image. However, one situation where scalers and whether or not have your source output 1080p would be if the material was statically 1080p, in which case the best downscaler.
But, as i've pointed out, this is not the case with as blurays work with the codec to derive a 720p resolution video from the video data (no scaling going on here), and games will only be rendered at 720p, meaning his source material will become 720p, and so his source should output 720p to avoid any needless scaling. If he outputted 1080p to his hd70, a native 720p, he will be getting a worse image, as scaling will then occur. And downscaled 1080p does look worse than a native 720p source, as downscaling is still an estimation process and details will be lost.
Even worse would be if his ps3 was set to 1080p, and he was playing a dvd that is 480p. The result would be the 480p upscaled to 1080p, then sent to the projector, then downscaled to 720p... again, why would you do this? In this case it does not matter "IF the scaler in your equipment is better than the scaler chipset in the HD70" as you'll be doubly scaling it, and no matter the scaler will be a worse image than it if was just scaled straight to 720p.
My argument is that with a 720p display you should minimize the ammount of scaling,and in general feeding a 720p display a 1080p/i signal will result in a degraded image. Which is quite the contrary to your original statement that contradicted mine, as he will, not be missing anything, and infact will be getting a less degraded image by having it set to 720p, as in general with his use no scaling will then be done, as opposed to having his ps3 set to 1080p and having the projector being forced to downscale the 1080p signal.
reconlabtech 04-05-09, 04:18 PM Here's the point:
MANY PS3 players play at 1080p.
He was doing this also.
If you have 1080p source, it may be beneficial to send that over to the PJ and let the PJ scale it.
You wondered if I took your post personal.
If you told anyone, YOU'RE WRONG - that IS personal.
If you can't understand that then I'm not sure any of your posts would be of any value.
Comprende?
But since you own this thread, you may have the last post. By all means...
jarrod1937 04-05-09, 04:29 PM MANY PS3 players play at 1080p.
If you're still arguing this, then i think the problem is that you don't understand my point with the bluray codecs and game rendering.
He was doing this also.
If you have 1080p source, it may be beneficial to send that over to the PJ and let the PJ scale it.
Yes, and so i've said:
"if the source material is 1080p/i, in which case the scaler will matter"
"However, one situation where scalers and whether or not have your source output 1080p would be if the material was statically 1080p, in which case the best downscaler."
You wondered if I took your post personal.
If you told anyone, YOU'RE WRONG - that IS personal.
If you can't understand that then I'm not sure any of your posts would be of any value.
Being told you're wrong should not be taken so personally, if it is true, it is a simple fact. I apologize if you took it personally, but if it is true, what response would you expect? I've been told i'm wrong many times, and it was true. I didn't take it personally, but learned.
reconlabtech 04-05-09, 08:18 PM Being told you're wrong should not be taken so personally, if it is true, it is a simple fact. I apologize if you took it personally, but if it is true, what response would you expect? I've been told i'm wrong many times, and it was true. I didn't take it personally, but learned.
There is a difference between:
YOU'RE WRONG...
and
I don't agree with THAT and here's why...
When using a medium that makes inflection, intonation, and intent impossible to discern, your words carry all of those qualities with them in the way they are used.
Arrogance assumes that one can use any language and expect that the true meaning should be obvious regardless of wording and anyone who perceives otherwise should just get over it.
I read the OP say he wanted 1080p - the PS3 outputs 1080p. 2 million pixels contain much more true image content than 920,000 pixels. My comments were directed at anyone who needs to decide what is better for any 1080 content, scale on the source or scale at the PJ. I said everyone should observe both and decide for themselves. I'm not wrong. Your science is not wrong either, but your insistence that I should not infer from YOU'RE WRONG that nothing personal was intended. Whether you realize it or not, that is the result of your wording.
I apologize if... but what should you expect? Yeah, ok.
From you, I already know.
jarrod1937 04-05-09, 09:39 PM Point taken, i'll choose my wording a bit more carefully from this point on.
I have a HD70 and a PS3, the projector prefers you to feed it 720p.
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