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VGA to HDMI possible?
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ipmark
Newbie
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6. August 2007 @ 06:32 |
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No, you're not listening. My computer can output 720P, or XGA or 20 other resolution combinations.
My TV will not accept resolutions from its vga port other than "standard" computer resolutions. IE VGA, SVGA, XVGA. It will not accept its own native resolution from the VGA port at all. At the closest resolution that it does accept, XGA, the tv compresses it slightly to fit on a 720p screen.
If I send a 720p signal through the VGA port (Which is not a standard computer monitor resolution), the picture is broken, skips all over the screen and is unusable.
That is the problem and why I need to convert it to hdmi or component, its only the vga port that has this restriction.
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taltamir
Suspended due to non-functional email address
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7. August 2007 @ 16:03 |
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AH!...
Actually thats EXACTLY what I saw with a sceptre 22inch mon I bought from costco... I returned it to the store immidiatly.
My parents Sony Wega also has problems accepting its correct resolution from a computer...
Sorry, your TV just sucks. :(
But now that I think about it... Try every single input mode, one of them MIGHT work... my parent's wega simply is no good with computers... but the sceptre DID work in VGA (despite being crap in DVI)
I do not have a superman complex; for I am God, not superman!
This message has been edited since posting. Last time this message was edited on 7. August 2007 @ 16:05
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ipmark
Newbie
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8. August 2007 @ 04:18 |
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Yea, I know my TV sucks :) in hindsight, I should have gone with something else... but I just finished paying it off and I don't have any plans to drop 2k for another one.
Anyway, you're right, I've been trying other resolutions and I have found others that work... but a lot of them have a habit of staying on, the flipping off for a second then staying on for a while.
And since its an RPTV I have more issues with getting the projection to focus just right. More tweaking.
Back to my original post, the VGA to HDMI thing didn't work at all. I don't know if it needs a very specific resolution fed to it, but a standard 720p feed just gives a black screen.
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ipmark
Newbie
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9. August 2007 @ 05:50 |
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Success!
The Startek box worked. I was almost ready to just accept the input from my TV's vga port with the slight blurriness, but it's night and day when I found the sweet spot with my HDMI settings and it all popped into focus. Its razor sharp now.
Anyway, don't listen to the PR that comes with the VGA to HDMI box... its not really all that plug n' play UNLESS your TV supports it. I had to use powerstrip to find a set of specific timings that worked. Of the 6 or so 1280x720 resolutions available, only one worked and didn't produce a black screen. IE when I say specific, a refresh rate of 59.99 didn't work, but 60.047 did work and above that it didn't work again.
Unfortunately, I still have some overscan, but its bearable. Its about 1/2 the height of the taskbar at the bottom and about the full height of the title bar/status bar thing at the top. Sides are about the same.
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durks
Newbie
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10. August 2007 @ 02:55 |
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Great news Ipmark,
so just to recap;
did you go from HDMI out to the startek to VGA?
as thats what i want to do, only not froma pc, but from a cable box.
phil
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ipmark
Newbie
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10. August 2007 @ 04:38 |
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Oops sorry, I should have been more specific. I'm going from VGA out to HDMI in. Not the other way around.
I think its more straightforward to go the other way around though, since computer monitors are a lot more forgiving of refresh rates and resolutions.
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ipmark
Newbie
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10. August 2007 @ 04:43 |
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Ugh, sorry I need to read more carefully. You're going from a cable box to a TV. I think you should be ok with the box since they're both using standard TV frequencies. Its more complicated going from computer to TV because the computer and TV use different frequencies, colorspaces etc etc.
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dampav
Newbie
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14. August 2007 @ 00:35 |
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I just bought myself a Sony KDL46W2000, which has a full 1080 and, which I was specifically looking for, a VGA input.
To my disbelief and 2500? worth of disappointment, the VGA input supports resolutions only up to 1360x768. Why is it impossible to support the full resolution is beyond my comprehension. My MM PC I have supports 1920x1080 at 60Hz. Adding or replacing the graphics card is not an option, that would mean replacing the whole box (Aopen xCube).
I am now researching alternative ways to get 1920x1080 from my PC. Support for VGA input was apparently sand in my eyes. Will a VGA to HDMI converter get me the full resolution? Anyone actually tried this before?
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ipmark
Newbie
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14. August 2007 @ 04:22 |
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You should be able to convert your output to whatever your tv's native resolution is for the hdmi port. For me, it was 720p. You'll definitely have to use powerstrip, but once you set it up its pretty easy.
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taltamir
Suspended due to non-functional email address
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14. August 2007 @ 16:22 |
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sony is a peice of shit. Get something better. You MIGHT Still be able to return it and get something better...
Both my parent's sony's (different models and sizes) have overscan issues and horrible problems with PC input... (one of them has a VGA but it doesn't help)
I do not have a superman complex; for I am God, not superman!
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dampav
Newbie
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15. August 2007 @ 22:48 |
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Originally posted by ipmark:
You should be able to convert your output to whatever your tv's native resolution is for the hdmi port. For me, it was 720p. You'll definitely have to use powerstrip, but once you set it up its pretty easy.
So, what you are saying, I WILL get 1080 over such a converter if I feed it a 1920x1080 resolution from my PC? I mean, pixel per pixel picture? Which converter was it again and where did you buy it?
Taltamir, would you recommend VGA2component over VGA2HDMI converter?
I mean, I know you guys can't give any quarantee, of course. It's just that I am grieved enough with having to buy additional component just to get what should be available within the box. Sony could have built this converter in in the first place. I would have paid 2600? just as well, instead of 2500?, what's the f** difference? But, it would only add to my grief if it turned out that whatever I am going to buy would not give me the results I expected. That's bucks outa window and I can't have it.
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dampav
Newbie
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15. August 2007 @ 23:40 |
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Originally posted by dampav:
So, what you are saying, I WILL get 1080 over such a converter if I feed it a 1920x1080 resolution from my PC?
I just got to Startech specs and they say max feed from PC is 1600x1200... :-( That rules it out.
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ipmark
Newbie
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16. August 2007 @ 04:22 |
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Yea, 1600x1200. A lot of the listings say that it will convert 1080p, but the startech site gives more info and says it doesn't do it from pc. Boo.
The other option is the Gefen VGA to DVI scalar (then just need a simple dvi to hdmi adapter, same signal). It'll do PC input up to 1920x1200 but I don't know if you'll get pixel to pixel mapping.
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dampav
Newbie
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16. August 2007 @ 11:29 |
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Originally posted by ipmark:
The other option is the Gefen VGA to DVI scalar (then just need a simple dvi to hdmi adapter, same signal). It'll do PC input up to 1920x1200 but I don't know if you'll get pixel to pixel mapping.
I found Gefen as well, yes. The specs are promising, however, when you look at the price tag... Come on, 260? for a converter? What does it do, make blockbuster flicks on the fly? Way too steep. At this price, I might consider a new MM PC after all.
In fact, looks like I'm stuck at 1360x768 until I actually get one. It's just, the one I have is not THAT old, it works great, is silent, small factor and all... Hard to part with something you like and trust, dammit.
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ipmark
Newbie
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16. August 2007 @ 11:51 |
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Yea, thats the prob I had too. You can get a video card that outputs DVI for <$100, just depends on what form factor.
I bought a refurb HP HTPC's so it only had one half-height PCI slot (not express). Even then I could find a video card for that... but aside from the DVI out it would be an inferior card to whats already onboard.
Try looking into video cards first... HDMI = DVI so you'd just need a cheap DVI to HDMI cable and you're set.
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dampav
Newbie
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20. August 2007 @ 00:16 |
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Originally posted by ipmark:
Try looking into video cards first... HDMI = DVI so you'd just need a cheap DVI to HDMI cable and you're set.
Well, done some more research & reading and I believe I can actually upgrade my box wit an AGP 4x card. Aopen rules. I also found a cheap GeForce 6200 with DVI output and passive cooling, which makes it perfect.
Unfortunately, I also found some unsettling reading about HDCP. Apparently, in order for the HDTV to show anything else but black screen, the HDMI signal has to comply to HDCP and carry a signature. Therefore, the appliance that generates the signal, be it HDMI or DVI, has also to comply with HDCP.
To until recently, no computer graphics card is HDCP capable. 2006 models certainly are not.
There is talk about DRM flags that are part of the media. A PC desktop is no DRM protected media, so I wonder, will HDTV let me see my 1920x1080 desktop over DVI/HDMI or not? Again, anyone done this before?
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ipmark
Newbie
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20. August 2007 @ 05:00 |
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Dunno the specifics, but I know for sure people use DVI to HDMI from their PCs to their tvs. You pretty much HAVE to use Powerstrip though (google it, its from entech taiwan or something).
DVI to HDMI is the most common method, if you're screwed like I was then you can use a conversion box.
Be warned though, theres a significant amount of tweaking involved in the process and you will most likely get SOME overscan no matter what you do.
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dampav
Newbie
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20. August 2007 @ 23:32 |
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Originally posted by ipmark:
Dunno the specifics, but I know for sure people use DVI to HDMI from their PCs to their tvs. You pretty much HAVE to use Powerstrip though (google it, its from entech taiwan or something).
DVI to HDMI is the most common method, if you're screwed like I was then you can use a conversion box.
Be warned though, theres a significant amount of tweaking involved in the process and you will most likely get SOME overscan no matter what you do.
I have been most lucky, as it seems.
First, my Aopen XC Cube (EZ18!! one of the first models) was able to take an "upgrade", that is, it has on-board VGA (dual-head Nvidia) but it also features an AGP 4x slot. Also, I was able to purchase a GeForce6200/128/TD with DVI out and passive cooling! Plug it in, it takes over, bingo. The updated ForceWare (Nvidia) was immediately aware that I connected a "Sony TV" to DVI and offered HDTV modes right away.
Second, I got picture the second I plugged the DVI to HDMI cable in. Granted, I had to poke around the settings of both the card and the tv (Sony KDL-46W2000) for an hour or so. At first, the picture was shown only partially, a strip all around the desktop was off-screen. It got me worried back there, I must say. I tried meddling with frequencies, sizing the visible desktop on the card, but none of that was satisfactory, pixels bleeding and such. Finaly, I found a setting on the tv set, Screen menu, Display Area. It has options "Normal", "-1", "-2" and sweet spot, "Full Pixel".
So, finally, no frequency tweaking, no Powerstrip. And no VGA. Although, this has to be said, the 1360x768 picture from the VGA input was beautiful as well, and great for watching ordinary DVDs.
As for HDCP, looks like much ado about nothing. By the time Blueray and the likes will get the chance to become commonplace, all this nonsense will get hacked, cracked, ripped and ignored. Just as DVD zones have been.
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sahbst
Newbie
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10. September 2007 @ 09:10 |
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Originally posted by VidJunkie:
Well, I don't think that the component cables themselves are the problem. I suspect that your DVD player only upconverts over the HDMI output, and that your projector does not have a digital (HDMI or DVI) input. If that is the case, then your options are limited. You could try to find an HDMI to Component (or SVGA) conversion box, but it is likely to be expensive since that is a digital to analog conversion.
I am in a same boat. (upconverting over HDMI only)
What i am thinking of doing is to use my video card(PC)(or perhaps get myself a better video card such as X1300 Radeon) to push 1080i/p over the vga cable to my projector(1080i only).
How do you think it will do the job?
And the quiality of the pictiure?
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dampav
Newbie
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12. September 2007 @ 05:09 |
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Originally posted by sahbst:
Originally posted by VidJunkie:
Well, I don't think that the component cables themselves are the problem. I suspect that your DVD player only upconverts over the HDMI output, and that your projector does not have a digital (HDMI or DVI) input. If that is the case, then your options are limited. You could try to find an HDMI to Component (or SVGA) conversion box, but it is likely to be expensive since that is a digital to analog conversion.
I am in a same boat. (upconverting over HDMI only)
What i am thinking of doing is to use my video card(PC)(or perhaps get myself a better video card such as X1300 Radeon) to push 1080i/p over the vga cable to my projector(1080i only).
How do you think it will do the job?
And the quiality of the pictiure?
As far as I was able to learn, a VGA cable won't do the job. If you have a HDMI input on you projector, and you have DVI output (x1300 do have it) on your PC, the most sensible solution is to use a DVI to HDMI cable. No conversion is necessary, therefore there should be no loss in the quality of the picture. Your projector might have some weird settings which distort the picture received, you have to find an option (at your projector) that will show full pixel-per-pixel image. (see my experience with Sony Bravia above)
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sahbst
Newbie
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12. September 2007 @ 07:07 |
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I have a Benq 620p.
It does not have a HDMI input but it does have a vga input.
I have a homemade component to vga cable which is used between in the HDTV cable box(component) and the projector(vga). This configuration gives me 1080i as the projector is capable to take in 1080i through vga.
If i were to use a DVI to VGA adapter, to use between the computer and the projector, my guess is that this setup would work.
What do you think?
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iris2008
Suspended permanently
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18. September 2007 @ 22:14 |
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Hi, I am Iris and happen to see the news about "VGA to HDMI possible?". Now I can tell you that is very easy, as we manufacture such item( HDMI Switch) and it sells well. we take pride of the high quality and moderate price. we can tell you loud that the quality is very steady. hehe, Please contact me: MSN: edited by ddp
This message has been edited since posting. Last time this message was edited on 19. September 2007 @ 08:42
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ddp
Moderator
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19. September 2007 @ 08:45 |
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iris, no advertising allowed on this site unless paid for & no email posting as per forum rules. post edited
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lenkeng
Suspended due to non-functional email address
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19. September 2007 @ 22:30 |
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vga to hdmi is possible thanks to our lkv350 vga to hdmi video converter
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mjf01234
Newbie
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22. October 2007 @ 11:02 |
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I'm trying to connect a pc to a 32" JVC HDTV. The pc has an NVidia 7300LE video card and i'm connecting it from the DVI on the card to a HDMI port on the TV. I want the resolution to be 1024 x 768 but whenever I set the resolution past 720 the signal gets converted to 1080i and the screen flickers. The only refresh rate available to choose from is 60hz. Can someone tell me how to get the resolution i want w/o the flicker.
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