View Full Version : DVDO with a HTPC
thunderstorm77 11-01-07, 08:00 AM I'm new to video processors. I currently own a HTPC that is connected to my LCD (1366*768) via VGA. I have tried many compinations with HDMI, but the picture size never matches the size of the TV.
Many LCD's, including my own (Samsung LE-40M61B), will only accept certain inputs, such as 720p, 1080i and 1080p.
1. Why can't my TV scale the picture so that it will fit the size of the TV?
2. What is the difference between a PC-video signal and a video-signal from a DVD-player etc.?
3. To be able to use the HDMI connection from my HTPC, I have read that DVDO (VP30) can convert the scan rate of the PC-signal and output it to the LCD with the correct resolution. Has anyone tried this with any success, and what is the picture quality like?
Thanks for any help.
R Miyashiro 11-01-07, 08:19 AM If I understand what you asking the VGA resolution is 4:3 not 16:9. Some televisions allow you to stretch the image to fit the screen. I would buy a graphics card that has a DVI/HDMI out, since if it doesn't have it your card is probably to old to handle HD.
I'm not positive about the black and white levels differences between video and PC signals, and hopefully someone else can elaborate. Going through HDMI my DVDO only has Video and not PC selectable under the input level option.
If you have a decent video card (I believe anything over $100) it will output in all the standard video resolutions and scan rates. I see 1365x768 as a selectable option.
I've done HDMI from my HTPC at 480p in to a VP50 outputting 1080p. I let the VP50 apply the PReP feature to it so the VP50 did the deinterlacing. Looked pretty darn good.
thunderstorm77 11-01-07, 06:07 PM If I understand what you asking the VGA resolution is 4:3 not 16:9. Some televisions allow you to stretch the image to fit the screen. I would buy a graphics card that has a DVI/HDMI out, since if it doesn't have it your card is probably to old to handle HD.
I'm not positive about the black and white levels differences between video and PC signals, and hopefully someone else can elaborate. Going through HDMI my DVDO only has Video and not PC selectable under the input level option.
If you have a decent video card (I believe anything over $100) it will output in all the standard video resolutions and scan rates. I see 1365x768 as a selectable option.
The problem is not the graphics card (it's a 7600GT), but the TV not accepting other resolutions than standard, such as 720p, 1080i etc. over digital connection. It's a common problem for many TV's with a resolution of 1366*768.
oliverg 11-02-07, 11:30 AM Yes I use my Crystalio 2 with a HTPC and its fantastic
Staff11 11-05-07, 11:53 PM I just purchased the DVDO VP50 Pro. Play the supplied demo disc on my HTPC and projected using Infocus IN82. To my suprised the picture quality with or without DVDO remain the same. No quality improvement at all.The rope in the rope scene still appears to be jagged, the flag screen is still jagged and the horizontal moving text that run across the scene still appears jagged and blurry.
Did I do something wrong? Please help.
Larry J 11-06-07, 12:34 AM I just purchased the DVDO VP50 Pro. Play the supplied demo disc on my HTPC and projected using Infocus IN82. To my suprised the picture quality with or without DVDO remain the same. No quality improvement at all.The rope in the rope scene still appears to be jagged, the flag screen is still jagged and the horizontal moving text that run across the scene still appears jagged and blurry.
Did I do something wrong? Please help.
I'm having all kinds of problems getting my HTPC to work right with this VP50pro. I posted in the regular thread asking if anyone has tried going on the Internet. I've hooked three different computers to this one I've got and at the beginning I was seeing the desktop an playing dvd's just fine. Then I tried going out on the Internet and the VP50pro went insane. So I reinstalled everything on the main pc and then it would take any resolution I tried.
I'll leave off the comments I made but I put the 1.00 firmware back on and now its back like it was. I can get the 1080P desktop and play HD or SD movies but cannot open IE or Firefox.
Its one of the most strange problems I've ever seen really, and I've seen a lot of weird problems. Its kind of tricky with IE, right now it will show the first page most times but will lose sync when going to another site. Firefox just goes makes it go out instantly. I am at a lost on why I had to reload the old firmware to get the desktop back working.
I'm trying to figure out if this thing is defective or just has a lot of bugs.
So, can you tell me what resolution you are putting out of your PC, and if you've tried going on the Internet ? I haven't called DVDO yet, did email but most times they won't answer those unless its a easy question.
I can run the pc remotely to download drivers or whatever but this just isn't right. I had a VP30 and 50 and never had a problem with a computer.
I already know the 480P format output doesn't work the way its shipped, so it wouldn't surprise me if mine isn't really defective. I just have to wonder what kind of beta testing they did to let such bugs still exist. How can you beta test a processor without trying a computer on it.
Thanks for any information you can give me about your setup.
oliverg 11-06-07, 12:40 AM What video card are you guys both using?
I just had an issue with the latest Nvidia Beta driver (with 8800GTXs) doing strange things (lots of resynch and loss of synch) when opening IE. Very strange - usually a simple desktop application like IE wont trigger a video driver issue of this nature but thats what it turned out to be.
Cheers
Larry J 11-06-07, 12:44 AM What video card are you guys both using?
I just had an issue with the latest Nvidia Beta driver (with 8800GTXs) doing strange things (lots of resynch and loss of synch) when opening IE. Very strange - usually a simple desktop application like IE wont trigger a video driver issue of this nature but thats what it turned out to be.
Cheers
I just asked about the IE problem, so did you find out a way to make it stop? So far I haven't been able to get the thing to act stable enough to use the internet. I'm using a Nvidia 8600gts but I've tried other computers that had a different card and it did the same thing.
oliverg 11-06-07, 01:39 AM In my case I solved it by rolling back to the WHQL certified driver - but if you are having the same problem with other sources/video cards then my money would be on a defective VP. Sorry :(
Good luck
Larry J 11-06-07, 10:58 AM In my case I solved it by rolling back to the WHQL certified driver - but if you are having the same problem with other sources/video cards then my money would be on a defective VP. Sorry :(
Good luck
Well it could be mine is bad or slightly more sensitive than yours. Could be that you're on PAL has something to do with it also. But the fact is just like you said, its strange that IE would cause that. The first thing I did was go back to a older driver, but that didn't fix it. The only reason I can even see a IE page is because of resetting the advanced internet options, which is weird also.
So, they don't have things right with the Pro verses the VP50 with timings or something. Shouldn't have to changes drivers to just see a standard computer resolution. Also it works straight to the Projector anyway.
I'll try a few more things, I really don't know what to do with it right this minute.
Staff11 11-06-07, 12:30 PM I'm having all kinds of problems getting my HTPC to work right with this VP50pro. I posted in the regular thread asking if anyone has tried going on the Internet. I've hooked three different computers to this one I've got and at the beginning I was seeing the desktop an playing dvd's just fine. Then I tried going out on the Internet and the VP50pro went insane. So I reinstalled everything on the main pc and then it would take any resolution I tried.
I'll leave off the comments I made but I put the 1.00 firmware back on and now its back like it was. I can get the 1080P desktop and play HD or SD movies but cannot open IE or Firefox.
Its one of the most strange problems I've ever seen really, and I've seen a lot of weird problems. Its kind of tricky with IE, right now it will show the first page most times but will lose sync when going to another site. Firefox just goes makes it go out instantly. I am at a lost on why I had to reload the old firmware to get the desktop back working.
I'm trying to figure out if this thing is defective or just has a lot of bugs.
So, can you tell me what resolution you are putting out of your PC, and if you've tried going on the Internet ? I haven't called DVDO yet, did email but most times they won't answer those unless its a easy question.
I can run the pc remotely to download drivers or whatever but this just isn't right. I had a VP30 and 50 and never had a problem with a computer.
I already know the 480P format output doesn't work the way its shipped, so it wouldn't surprise me if mine isn't really defective. I just have to wonder what kind of beta testing they did to let such bugs still exist. How can you beta test a processor without trying a computer on it.
Thanks for any information you can give me about your setup.
Iam using Nvidia 8600 GT graphics card
My current output is 1080p60 but I have tried other resolutions output as well but still no picture improvement or whatsoever.
Also the Contrast, Brightness and the rest in the Picture Control function does not work at all.
Larry J 11-06-07, 12:49 PM Iam using Nvidia 8600 GT graphics card
My current output is 1080p60 but I have tried other resolutions output as well but still no picture improvement or whatsoever.
Also the Contrast, Brightness and the rest in the Picture Control function does not work at all.
Well, I'm not sure what your problem is regarding the picture controls not working. I will say that the brightness control doesn't seem to change nearly as fast verses what the VP50 did. I can move it quite a bit without it doing much, but it does work. You need the video/pc input and output settings right.
Far as I can tell everything is mostly working on mine except when opening a web browser.
So, are you hooked up to the internet on your HTPC, and if so have you tried opening IE or Firefox and used the internet ? I got one more PC I'm going to try on it because its has nothing Nvidia on it, but that still won't let me use what I want even if it works right.
I either got a bad one or they got issues with computers, something I've never had with DVDO before. I guess it could be a 1.3 thing.
Anyway, if you don't have a problem with a web browser then I'd like to know.
Thanks
I just purchased the DVDO VP50 Pro. Play the supplied demo disc on my HTPC and projected using Infocus IN82. To my suprised the picture quality with or without DVDO remain the same. No quality improvement at all.The rope in the rope scene still appears to be jagged, the flag screen is still jagged and the horizontal moving text that run across the scene still appears jagged and blurry.
Did I do something wrong? Please help.
Apologies if this is stating the obvious.... PC video cards only put out a progressive signal. With Prep turned on I do see a noticeable difference on PQ: when it is off there is not much improvement. I have an ASUS 7600GS (Nvdia) together with the NVida decoder
thunderstorm77 11-07-07, 02:14 AM Apologies if this is stating the obvious.... PC video cards only put out a progressive signal. With Prep turned on I do see a noticeable difference on PQ: when it is off there is not much improvement. I have an ASUS 7600GS (Nvdia) together with the NVida decoder
Staff11 - Have you tried this? I want to make sure the VP30 makes a great improvement in PQ from my HTPC before I purchase one.
oliverg 11-07-07, 03:03 AM I don't know about the 30 - I know the 50 improves even the best source unless the source already integrates a good VP chipset (eg Gennum Reon) (even a well calibrated HTPC)
Best thing to do is audition one before you buy.
thunderstorm77 11-07-07, 03:16 AM Apologies if this is stating the obvious.... PC video cards only put out a progressive signal. With Prep turned on I do see a noticeable difference on PQ: when it is off there is not much improvement. I have an ASUS 7600GS (Nvdia) together with the NVida decoder
I don't know about the 30 - I know the 50 improves even the best source unless the source already integrates a good VP chipset (eg Gennum Reon) (even a well calibrated HTPC)
Best thing to do is audition one before you buy.
I won't have the opportunity to try one out, 'cause I live in Norway and will purchase one while I'm in the US next week. Is there a great difference between the VP30 and VP50?
EDIT: I see it's pretty much the same, only better 480i/576i deinterlacing and ability to process 1080p signals. I won't need these features with a HTPC, which I use for all my sources.
I won't have the opportunity to try one out, 'cause I live in Norway and will purchase one while I'm in the US next week. Is there a great difference between the VP30 and VP50?
Yes, the VP30 have passthrough and would be better for computer use. If your display takes native resolution trough hdmi/dvi. you can get very good pictures from a computer. We have tried running through both VP30 and VP50. The best so far for the VP50 is to run 1080i from the computer. It will not look to good in a browser or other text-based programs (except for 1920x1080 panels). But movies and graphics is ok. Good GPU's have massive amounts of processing power and will do a very good job, if it can access the LCD or plasma panel directly.
To sum it up. If your display can't accept it's native resolution through hdmi/dvi. I'm sorry to say, it's useless. Especially with 1366x768 panels.
If you live nearby Oslo we have both VP30's and 50's running on 1366x768 panels in the area, for you to take a look at.
thunderstorm77 11-07-07, 04:12 AM Yes, the VP30 have passthrough and would be better for computer use. If your display takes native resolution trough hdmi/dvi. you can get very good pictures from a computer. We have tried running through both VP30 and VP50. The best so far for the VP50 is to run 1080i from the computer. It will not look to good in a browser or other text-based programs (except for 1920x1080 panels). But movies and graphics is ok. Good GPU's have massive amounts of processing power and will do a very good job, if it can access the LCD or plasma panel directly.
To sum it up. If your display can't accept it's native resolution through hdmi/dvi. I'm sorry to say, it's useless. Especially with 1366x768 panels.
If you live nearby Oslo we have both VP30's and 50's running on 1366x768 panels in the area, for you to take a look at.
Thanks for your reply. My TV is 1366*768, so I guess any DVDO product will be useless. I tought the DVDO would do a better job because the TV does not support the native resolution over HDMI/DVI. (My TV is Samsung LE40-M61B)
Staff11 11-08-07, 01:02 AM Staff11 - Have you tried this? I want to make sure the VP30 makes a great improvement in PQ from my HTPC before I purchase one.
I have tried with the PRep on and off. With the PRep on and the deinterlacing at AUTO, the horizontal scrolling text is unreadable. To fix it I have to set the deinterlacing to "Forced film bias" or to "forced 3:2". With that setting Iam back to the same as Iam running straight from pc to my projector.
As for my Brightness and Contrast control is really non-functional. I have tried Max out and min out the bar and still did not see any changes.
Staff11 11-08-07, 01:11 AM Staff11 - Have you tried this? I want to make sure the VP30 makes a great improvement in PQ from my HTPC before I purchase one.
I used to own the VP30 for about a year before upgrading to VP50 Pro. Everthing works fine on VP30. You can actually see and differentiate the picture quality when you plug in the VP30.
And of course the Brightness and Contrast works fine in my old VP30.
Iam really regretting upgrading to the VP50pro, and up to now still have not have a slightest clue of how to correct my VP50pro problems.
thunderstorm77 11-08-07, 02:05 AM I used to own the VP30 for about a year before upgrading to VP50 Pro. Everthing works fine on VP30. You can actually see and differentiate the picture quality when you plug in the VP30.
And of course the Brightness and Contrast works fine in my old VP30.
Iam really regretting upgrading to the VP50pro, and up to now still have not have a slightest clue of how to correct my VP50pro problems.
I am confused. Would you recommend the VP30 - is it worth the money? I currently use a VGA connection to my LCD-display, which is pretty good, but could definitely be sharper. I would love to be able to set up like this:
HTPC DVI -> VP30 HDMI -> LCD display HDMI
thunderstorm77 11-09-07, 02:06 AM I am confused. Would you recommend the VP30 - is it worth the money? I currently use a VGA connection to my LCD-display, which is pretty good, but could definitely be sharper. I would love to be able to set up like this:
HTPC DVI -> VP30 HDMI -> LCD display HDMI
Any thoughts?
Any thoughts?
I would believe that since your display doesn't accept native res. the best would be to output 720p from a VP or PC. Then any deinterlacing is handeled by the VP/PC and the display only doing some scaling.
I would seriously consider another display. You either have to get a display that has res. of 1280x720 or 1920x1080 and/or a display that accept native res on hdmi/dvi. Only problem with 1920x1080 is that it tends to get very small, if you don't sit close to your display.
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