High Def Forum - Your High Definition Community & High Definition Resource

Go Back   High Def Forum - Your High Definition Community & High Definition Resource >
Rules HDTV Forum Gallery LINK TO US! RSS - High Def Forum AddThis Feed Button AddThis Social Bookmark Button Groups

Computers/HTPCs A place to discuss your computer setups, PC requirements, ATI Wonder Card, etc.

HDMI video card

Reply
AddThis Social Bookmark Button
 
Thread Tools
Old 02-12-2008, 02:54 AM   #1  
How can anyone watch standard def?
Thread Starter
 

Join Date: Oct 2007
Posts: 15
Default HDMI video card

I would like to know if any of you have seen a difference between using a DVI-HDMI cable and a video card with HDMI output when connecting a PC to a HDTV. Can a video card with HDMI output give a crisper and clearer output image? I have this concern because when using a VGA cable to connect the PC to the HDTV it gave me a clearer picture with smaller pixels. Now when using DVI-HDMI cable with the resolution 1280x720 the image is not that crisp and the pixels look a little bigger than on VGA. Unfortunately I cannot user the VGA because my DHTV doesn't output wide signal through VGA. My native resolution for the HDTV is 1368x768.
Buying a video card with HDMI output and using a HDMI-HDMI cable could give a better looking image?
abrash is offline   Reply With Quote
Old 02-12-2008, 09:53 AM   #2  
How can anyone watch standard def?
Thread Starter
 

Join Date: Oct 2007
Posts: 15
Default

Didn't anybody noticed a difference between these two types of video connection?
abrash is offline   Reply With Quote
Old 02-12-2008, 10:06 AM   #3  
"Shitter was Full"
 
Bigloww's Avatar
 

Join Date: Apr 2006
Location: In a van, down by the river.
Posts: 8,321
Default

As far as video quality between DVI-D and HDMI goes..... No, there is no difference in PQ. They are identicle. That is as long as we are talking about the same video card as a comparason..
Bigloww is offline   Reply With Quote
Old 02-12-2008, 02:55 PM   #4  
How can anyone watch standard def?
Thread Starter
 

Join Date: Oct 2007
Posts: 15
Default

I also don't think that if instead of my 7900 GT video card, If I was using an Ati card with HDMI output there was a difference in the quality of the video signal. I was wondering if that a card with HDMI would output a video signal more appropriate to the standard resolution of 720p. I really don't know, maybe the fact that on VGA the image is more clearer is because it uses a different way of outputting the image. Maybe I want to much from a HDTV. I know it wasn't build to be used as a computer monitor so that's why it cannot display the signal from a PC as crisper as a LCD monitor. I just wanted to know if a video card with HDMI output could bring a better image quality than a normal one with a DVI to HDMI cable.
abrash is offline   Reply With Quote
Old 02-12-2008, 11:28 PM   #5  
High Definition is the definition of life.
 
Reveers's Avatar
 

Join Date: Feb 2008
Location: Way up North
Posts: 86
Red face

Hi. I have a 32" Samsung LCD HDTV with HDMI input plugged into my computers AGP Nvidia GeForce 7600 GS via DVI-HDMI cable. The desktop resolution is 1360x768 and it is absolutely flawless.

The inital setup was virtually perfect as well. Initially I installed the video card and newest drivers using a computer monitor to limit any sort of damage to my tv and after that was all done I shut off the computer, unplugged the monitor and hooked up the DVI-HDMI cable to the tv and turned it all on. As soon as windows booted I mucked around with the resolutions a bit till I found that this one was absolutely the best.

Nothing is distorted, text looks like it would look on a normal computer monitor, and despite being on an AGP video card, games run very well.

Short of installing a PCI-X mobo, buying a new HD video card with HDMI out on it and hooking it up to this TV, I do not believe the image can get any better. Even IF I were do the aforementioned I do not believe it would change the way it looks at all.
Reveers is offline   Reply With Quote
Old 02-12-2008, 11:40 PM   #6  
How can anyone watch standard def?
Thread Starter
 

Join Date: Oct 2007
Posts: 15
Default

Can you tell me Reveers what you did to set this resolution? When I try to add this 1360x768resolution in Nvidia control panel, at Manage custom resolution, after adding it and pressing the Test button, the error messge "Custom mode test failed" is displayed. Is there something else that I need to do to set this resolution?
I don't have another LCD and my HDTV is set as single display.
It is possible to achieve this resolution only in a Dual View option or it can be also set in a single display configuration?
Could be also a cable restriction?

Last edited by abrash; 02-12-2008 at 11:56 PM..
abrash is offline   Reply With Quote
Old 02-12-2008, 11:58 PM   #7  
High Definition is the definition of life.
 
Reveers's Avatar
 

Join Date: Feb 2008
Location: Way up North
Posts: 86
Default

Not without asking you what kind of TV you're using.
It all seemed to just work for me.

One of the sticky articles at the top of the forum mentioned a program called Moninfo. It has a few recommended resolution settings and should tell you what the native resolution for your TV should be when you run it. Perhaps the 1360x768 setting isn't right for your setup.

The other suggestion I would have would be to go into the NVIDIA control panel, under the Video & Television tab,
select "Change the signal or HD Format" and try a couple of the different options. In particular switch between the Non-HDTV format and the 720p HDTV setting and see what effect it has.

If none of that works try to run the display optimization wizard and post the results up here.
Reveers is offline   Reply With Quote
Old 02-13-2008, 01:12 AM   #8  
How can anyone watch standard def?
Thread Starter
 

Join Date: Oct 2007
Posts: 15
Default

I will try to use the program today. Unfortunately now I am at work .
Another interesting aspect is that when first installing the drivers the native resolution is seen as 1080i but this isn't displayed correctly with distorted image lines. The HDTV is Sharp Aquos LC32Ra1e.
abrash is offline   Reply With Quote
Old 02-13-2008, 11:55 AM   #9  
How can anyone watch standard def?
Thread Starter
 

Join Date: Oct 2007
Posts: 15
Default

I have tried using the Moninfo tool and it gave me this results:
Monitor
Windows description......... Plug and Play Monitor
Manufacturer description.... SHARP HDMI
Manufacturer................ Sharp
覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Plug and Play ID............ SHP0FEB
Serial number............... n/a
EDID data source............ I2C bus (real-time)
覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Manufacture date............ 2006
EDID revision............... 1.3
Display type and signal..... Digital
Sync input support.......... n/a
Screen size................. n/a
Power management............ Active off/sleep

Color characteristics
Display gamma............... 2.20
Red chromaticity............ Rx 0.633 - Ry 0.333
Green chromaticity.......... Gx 0.205 - Gy 0.702
Blue chromaticity........... Bx 0.150 - By 0.081
White point (default)....... Wx 0.292 - Wy 0.322

Timing characteristics
VESA GTF support............ Not supported
Horizontal scan range....... 15-46kHz
Vertical scan range......... 49-61Hz
Video bandwidth............. 80MHz
Extension blocks............ 1
Timing recommendation #1.... 1920x540 at 50Hz
Modeline................ "1920x540" 74.250 1920 2448 2492 2640 540 574 579 562 +hsync +vsync
Timing recommendation #2.... 1920x1080 at 25Hz
Modeline................ "1920x1080" 74.250 1920 2448 2492 2640 1080 1148 1158 1124 interlace +hsync +vsync
Timing recommendation #3.... 720x480 at 60Hz
Modeline................ "720x480" 27.000 720 736 798 858 480 489 495 525 -hsync -vsync
Timing recommendation #4.... 720x576 at 50Hz
Modeline................ "720x576" 27.000 720 732 796 864 576 581 586 625 -hsync -vsync
Timing recommendation #5.... 1920x540 at 60Hz
Modeline................ "1920x540" 74.250 1920 2008 2052 2200 540 542 547 562 +hsync +vsync
Timing recommendation #6.... 1920x1080 at 30Hz
Modeline................ "1920x1080" 74.250 1920 2008 2052 2200 1080 1084 1094 1124 interlace +hsync +vsync
Timing recommendation #7.... 1280x720 at 50Hz
Modeline................ "1280x720" 74.250 1280 1720 1760 1980 720 741 746 750 +hsync +vsync
Timing recommendation #8.... 1280x720 at 60Hz
Modeline................ "1280x720" 74.250 1280 1390 1430 1650 720 725 730 750 +hsync +vsync

Standard timings supported
720 x 480 at 60Hz - Sharp
720 x 576 at 50Hz - Sharp
1280 x 720 at 50Hz - Sharp
1280 x 720 at 60Hz - Sharp
1920 x 540 at 50Hz - Sharp
1920 x 540 at 60Hz - Sharp
1920 x 1080 at 25Hz - Sharp
1920 x 1080 at 30Hz - Sharp

Raw EDID base
00: 00 FF FF FF FF FF FF 00 4D 10 EB 0F 01 01 01 01
10: 00 10 01 03 80 00 00 78 2A 1B BE A2 55 34 B3 26
20: 14 4A 52 00 00 00 01 01 01 01 01 01 01 01 01 01
30: 01 01 01 01 01 01 01 1D 80 D0 72 1C 16 20 10 2C
40: 25 80 00 00 00 00 00 9E 8C 0A D0 8A 20 E0 2D 10
50: 10 3E 96 00 00 00 00 00 00 18 00 00 00 FC 00 53
60: 48 41 52 50 20 48 44 4D 49 0A 20 20 00 00 00 FD
70: 00 31 3D 0F 2E 08 00 0A 20 20 20 20 20 20 01 7D

Raw EDID extension (CEA-861)
00: 02 03 21 71 4D 94 05 13 04 11 12 02 03 15 16 06
10: 07 01 23 09 07 07 83 01 00 00 66 03 0C 00 20 00
20: 80 8C 0A D0 90 20 40 31 20 0C 40 55 00 00 00 00
30: 00 00 18 01 1D 80 18 71 1C 16 20 58 2C 25 00 00
40: 00 00 00 00 9E 01 1D 00 BC 52 D0 1E 20 B8 28 55
50: 40 00 00 00 00 00 1E 01 1D 00 72 51 D0 1E 20 6E
60: 28 55 00 00 00 00 00 00 1E 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 53

EIA/CEA-861 Information
Revision number............. 3
DTV underscan............... Not supported
Basic audio................. Supported
YCbCr 4:4:4................. Supported
YCbCr 4:2:2................. Supported
Native formats supported.... 1
DTV formats supported....... 13

CE standard timings supported
1920 x 1080i at 50Hz (16:9) - HDTV (Native)
1920 x 1080i at 59.94/60Hz (16:9) - HDTV
1280 x 720p at 50Hz (16:9) - HDTV
1280 x 720p at 59.94/60Hz (16:9) - HDTV
720 x 576p at 50Hz (4:3) - EDTV
720 x 576p at 50Hz (16:9) - EDTV
720 x 480p at 59.94/60Hz (4:3) - EDTV
720 x 480p at 59.94/60Hz (16:9) - EDTV
720 x 576i at 50Hz (4:3) - Doublescan
720 x 576i at 50Hz (16:9) - Doublescan
720 x 480i at 59.94/60Hz (4:3) - Doublescan
720 x 480i at 59.94/60Hz (16:9) - Doublescan
640 x 480p at 59.94/60Hz (4:3) - Default

Display adapter
Adapter description......... NVIDIA GeForce 7900 GS
Adapter device ID........... 0x029210DE
Display settings............ 1280x720, 16bpp

As you can see, there's no resolution 1368x768 in this results. The HDTV is not an FullHD one and it doesn't support 1080p. The strange thing is that 1920 x 1080i at 50Hz is recognized as the native resolution but unfortunately the display is corrupted when switching to this resolution, the image trembles and is blurred. Does anyone have a solution?
abrash is offline   Reply With Quote
Old 02-13-2008, 12:43 PM   #10  
How can anyone watch standard def?
Thread Starter
 

Join Date: Oct 2007
Posts: 15
Default

I have tried to go to Advanced options in the Manage resolutions option and here I selected Centered. Now I can test any resolution I want so I have added 1368x768 but the output was too big fo the display and blurred. I have also tried 1366x768 and 1360x768 but they also didn't worked. An interesting fact is that the box where I add the vertical resolution 768 is changed when I comeback from the test mode to my initial resolution. It is changed in 540. I attached a screen shot of what happens in the nvidia control panel.
Attached Images
File Type: jpg nvidia.jpg (53.0 KB, 16 views)
abrash is offline   Reply With Quote
Old 02-13-2008, 01:40 PM   #11  
High Definition is the definition of life.
 
Reveers's Avatar
 

Join Date: Feb 2008
Location: Way up North
Posts: 86
Default

Try the timing recommendations starting with Timing recommendation #1.... 1920x540 at 50Hz
Pay attention to the refresh rate being sure to keep it inside that 50/60Hz range.
As well, at the bottom of the Moninfo readout it says you're running the display at 16bpp. Can you up that to the 32bpp? That might help it a bit.
Also what connector are you using? Is it still the VGA cord? Try some of the recommended resolutions with the DVI-HDMI cable.
If anything your video card should be able to do what mine does but better.
Reveers is offline   Reply With Quote
Old 02-14-2008, 04:43 AM   #12  
How can anyone watch standard def?
Thread Starter
 

Join Date: Oct 2007
Posts: 15
Default

I have tried using 32bit but it doesn't make a difference. I have a DVI-HDMI cable connected to the HDTV. I don't use a VAGA cable because the output through a VGA cable is never wide. I think is something related to the HDTV because when connecting the Xbo360 with a Vga cable, and selecting a wide resolution it aslo doesn't output a wide image. Aside 720p none of the recomanded resolutions from Moninfo work. I really don't know what else can I do. I think that the HDTV doesn't know other resolutions.1080i is also distorted.
abrash is offline   Reply With Quote
Old 02-15-2008, 03:33 PM   #13  
How can anyone watch standard def?
Thread Starter
 

Join Date: Oct 2007
Posts: 15
Default

Unfortunately it didn't worked on the VGA connection either.
I will stick to the DVI-HDMI cable for now but I want to ask if it could be a problem using the overscan option from my nvidia card. I ask this because after setting the overscan margins, when going back to the change resolution tab, a new resolution is shown. Ex. from 1280x720 after overscan it is changed in 1232x684. I heard that if you use not recomanded resolutions you could damage the HDTV. Does this overscan really change the resolution ar is it harmless?Should I use it or not?
abrash is offline   Reply With Quote
Old 02-15-2008, 05:04 PM   #14  
Administrator
 
rbinck's Avatar
 

Join Date: Apr 2004
Location: Katy, Texas
Posts: 16,968
Default

That 1232x684 resolution is not what is being sent to your HDTV. It is the reduced desktop size to compensate for overscan. 1280x720 is still being sent to your TV with a blank border to make the desktop fit on your TV. Not to worry.
rbinck is offline   Reply With Quote
Old 02-15-2008, 05:10 PM   #15  
How can anyone watch standard def?
Thread Starter
 

Join Date: Oct 2007
Posts: 15
Default

Thank you very much rbinck.
abrash is offline   Reply With Quote
Sponsored Links
Go Back   High Def Forum - Your High Definition Community & High Definition Resource >
AddThis Social Bookmark Button
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


to HDMI video card
Thread Thread Starter Forum Replies Last Post
HDMI Video Card Ixman Computers/HTPCs 7 10-17-2008 09:42 AM
Question on buying a video card notaloafer Flat-Panel TVs 19 05-04-2008 01:18 PM
Video Card/ TV resolution shortymet55 Computers/HTPCs 6 12-13-2007 07:34 AM
Comcast hdmi video and component sound? Kearnsy Cable Providers 8 12-28-2006 11:22 PM
Suggestions on Video Card? xselder Computers/HTPCs 12 08-02-2006 12:01 AM


All times are GMT -6. The time now is 09:56 PM.



Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Copyright ゥ2004 - 2018, MH Sub I, LLC dba Internet Brands