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  Help with a new VGA Cable! 
 
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Michael C Feb 21, 2010, 04:00pm EST Report Abuse
My VGA cable is not working correctly and I need a replacement, so I bought one off Newegg but when I hooked it up I found that it only supports up to 1600x1200. I'm sure there's a simple reason for this but regardless, I just wasted $20. I still need a new cable like the original one that will support 1920x1200(my native res). Can someone point out on newegg.ca, or ncix.com which cable would be good? And maybe someone knows why the cable I bought doesn't work right? This is the one I bought:

http://www.newegg.ca/Product/Product.aspx?Item=N82E16812186080


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Joshua Marius, LeThe Feb 21, 2010, 04:40pm EST Report Abuse
>> Re: Help with a new VGA Cable!

To my knowledge, VGA cables have no limit on resolution; what limits your resolution is the Monitor or the Video Card. DVI will give you a better picture of course.

Make sure you have all of your drivers installed and up to date.

Joshua Marius
http://www.letheonline.net
-----------------------------
Windows 7 Ultimate x64 SP1
Intel Core i5-2500K
ASUS P8Z68-V LX
Intel SSDSC2CW180A3 180 GB
RAID 1: Seagate ST3750528AS 750 GB
CORSAIR Vengeance 8 GB DDR3 1600
eVGA GeForce 8800 GTS
Michael C Feb 21, 2010, 04:58pm EST Report Abuse
>> Re: Help with a new VGA Cable!
Normally it would be that way, but not in this case. I have 2 cables here, nearly identical - and when the new on is plugged in it doesn't even pick up the monitor name or resolutions higher than 1600x1200. This monitor doesn't have any drivers, you just plug and go. Shouldn't have to do anything else.

TamTheBam Feb 21, 2010, 05:04pm EST Report Abuse
>> Re: Help with a new VGA Cable!

You should be able to customise your resolutions from CCC at desktop.
And what I mean is, create the resolution. Not highlight it, and select it.
The VGA has nothing at all to do with resolutions at all. Ever. It's just transmitting
signals from A to B. Nothing else.
I experienced a similar issue on a computer I was fixing a few weeks back. I couldn't
even get 16x12 connected to my LCD. So i created the resolution on Nvid Desktop.

....I'm back, but only as a part-timer... :)
Michael C Feb 21, 2010, 05:30pm EST Report Abuse
>> Re: Help with a new VGA Cable!
I'll try messing around with it again, but fear the worst.

john albrich Feb 21, 2010, 09:02pm EST Report Abuse
>> Re: Help with a new VGA Cable!

Manually manipulating the display control parameters as previously suggested is likely to produce a better and faster solution to your problem.

But, it's possible that the act of swapping out cables resulted in a simple PnP parameter reset which for various reasons changed how your system now responds to the display. This could result in any number of device driver "failures". Possible solutions include continuing to delete the display and forcing re-init until it is properly recognized. However, the issue could also be due to software/OS/driver updates you have installed since the device was first recognized and installed and worked "properly" and uncovered when the device parameters had to be reset for some reason. Changing the driver could change the way in which PnP responds to the display parametric data simply because the implmentation of the standard may have changed between driver versions.

You might also consider ensuring that every pin on the new cable's connector is in fact electrically connected to it's corresponding pin on the other end of the cable. Look for any evidence of connector pin/socket misalignment or even missing. Also, contrary to what some have said the function of the VGA signal pins has been dynamically re-assigned as technology improves and includes digital information of varying and changing types. (e.g. note pin 4,11,12, and 15 re-assignments as of E-DDC and DDC2 specifications). Due to confusion, it is possible a "VGA" cable is in fact not a "VGA" cable even if it is sold as such. Although it is highly unlikely, it is nonetheless also possible the cable manufacturer omitted some wires to save a few pennies per cable...manufacturers do that kind of thing all the time especially for no-name super cheap parts. Or, it could simply be a manufacturing error.

For more info on "VGA" v. other 15pin cables, and pin assignments see:
http://en.wikipedia.org/wiki/VGA_connector
http://en.wikipedia.org/wiki/Extended_display_identification_data


Also, contrary to what is commonly believed, the image quality of DVI v. VGA is never automatically in favor of DVI. Both "VGA" signals and DVI signals can be degraded from poor cable quality, cable length, mis-matched cable impedance, sub-standard hardware signal drivers and receivers, and more. This CAN easily result in inferior quality DVI images relative to VGA images on the same display with the same video card due to lost or corrupted data. "Digital" does not automatically mean "better"...all you have to do is look at some "digital" cable/satellite TV to notice that the images are in fact degraded, may contain artifacts, and can due to compression contain less rendered video information than an analog signal would provide.


edit to add:
By the way, we have already started seeing problems crop up because there exist multiple versions of standards for both HDMI and HDCP. Hardware and software vendors very seldom specify which version standard they are supporting and that can cause compatibility issues between devices and with media playback in full v. crippled content HD video and/or audio. It will likely cause even more consumer problems as time goes by and these standards continue to change.

Joshua Marius, LeThe Feb 21, 2010, 09:08pm EST Report Abuse
>> Re: Help with a new VGA Cable!

*sigh*

Joshua Marius
http://www.letheonline.net
-----------------------------
Windows 7 Ultimate x64 SP1
Intel Core i5-2500K
ASUS P8Z68-V LX
Intel SSDSC2CW180A3 180 GB
RAID 1: Seagate ST3750528AS 750 GB
CORSAIR Vengeance 8 GB DDR3 1600
eVGA GeForce 8800 GTS
Michael C Mar 01, 2010, 07:55pm EST Report Abuse
>> Re: Help with a new VGA Cable!
Well I've tried the cable again and it's still the same thing. Only detecting 1600x1200 as a max resolution. Apparently there is no setting in CCC to create a custom resolution either. I noticed that this has one less pin than the original cable, could that have something to do with it? Really at a loss, I guess the cable is justs**t.

kOrny Mar 01, 2010, 08:05pm EST Report Abuse
>> Re: Help with a new VGA Cable!
My monitor (and TV) can output 1920 x 1080 with a vga cable. Scaling was off, but easily corrected in CCC.

Michael C Mar 04, 2010, 03:07pm EST Report Abuse
>> Re: Help with a new VGA Cable!
I believe I've found that John was basically on the right track. My cable is only 14-pin and cannot display HD resolutions. You need a 15-pin cable for that apparently...so I bought a new 15-cable lol. What a waste of $20.

G. G. Mar 04, 2010, 05:23pm EST Report Abuse
>> Re: Help with a new VGA Cable!
So... does that new "15-pin" working?

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Michael C Mar 04, 2010, 05:31pm EST Report Abuse
>> Re: Help with a new VGA Cable!
G. G. said:
So... does that new "15-pin" working?

I got it from Newegg so I do not have it G.G, will let ya know when I get it.

Michael C Mar 10, 2010, 06:42pm EST Report Abuse
>> Re: Help with a new VGA Cable!
Got the new cable and am still having the exact same issue...WTF?

G. G. Mar 10, 2010, 08:24pm EST Report Abuse
>> Re: Help with a new VGA Cable!
once again Michael.... How are you connected from your 4870 to the monitor?

example: my card has two DVI + one S-video type... I connect from one of my DVI to my monitor's HDMI port (my monitor does not have DVI input). I use a DVI to HDMI cable. I use to use the DVI to HDMI gender changer connector but that setup had issues.... The cable changer cleared the problem.


oh... and your monitor, isnt it the 28" Hanns-G ?

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Michael C Mar 10, 2010, 08:28pm EST Report Abuse
>> Re: Help with a new VGA Cable!
I'm not using any DVI or HDMI cables or inputs. Just standard VGA to VGA. This cable has 15 pins when the last had 14. I use the original cable and it works perfect everytime. I just don't get it.

Meats_Of_Evil Mar 10, 2010, 08:45pm EST Report Abuse
>> Re: Help with a new VGA Cable!
You can return the Newegg cable if it didn't work, they have excellent customer support you know.

Have you tried re-installing the vid card drivers? It could work.

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Everything I write is Sarcasm.
G. G. Mar 10, 2010, 09:55pm EST Report Abuse
>> Re: Help with a new VGA Cable!
Michael,

you say that you are using VGA to VGA.... isnt your video card configured with 2 x DVI ??????? So if your are doing VGA to VGA cable... the video card side, you would need to use that DVI to VGA adapter/connector... isnt that true?


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G. G. Mar 11, 2010, 10:18pm EST Report Abuse
>> Re: Help with a new VGA Cable!
Michael,,

Ok... I took a look at your Hanns G monitor at newegg...

I was wondering why you were using VGA from your 4870 to the monitor... Now I notice that your monitor, like mine, only has one HDMI and one VGA as its input. You must be using the HDMI for something else and you want to use the VGA for your computer...

So.... since your cable has VGA on both ends.... you have to use a DVI to VGA converter connector at the video card end...

I am thinking that your problem may be with the DVI to VGA connector.....


Reason I say this ????? I had a problem using the supplied DVI to HDMI connector on my HD4870. My problem was after just over a month of operation, I started to get this weird flashing red horizontal line running across my monitor. very fast random up and down the screen. it would come and go.... after doing some searches... the supposedly fix was to replace the monitor.... well, before doing this... I decided to eliminate the connector by going out and buying a new cable where the cable had HDMI on one end and DVI on the other end. Good quality cable with the gold ends... Well guess what? My problem went magically went away and have not returned since.. (you watch, I just jinx myself)


I know this is not exactly the same problem as yours of not being able to reach your full resolution of 1920x1200.... but.... if you are using that gender bender connector.... this may be the problem... The way I see it, this is a sensitive area as it is not a continuous run... there is a break in the line.. not solid.... it is another connection in the path.. maybe the connector is introducing some sort of interference on the line that wont allow you to go to that res.


I would either change out the dvi to vga connector to another connector (maybe its doa) or get one of those DVI to VGA cable where the end to end wires are a solid run from A to B....


I dont know if this is the fix but worth trying...




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john albrich Mar 12, 2010, 04:59am EST Report Abuse
>> Re: Help with a new VGA Cable!
G. G. said:
Michael,
you say that you are using VGA to VGA.... isnt your video card configured with 2 x DVI ??????? So if your are doing VGA to VGA cable... the video card side, you would need to use that DVI to VGA adapter/connector... isnt that true?


Good catch, G.G. That's a real possibility*

Clearly the lesson is that confirming detailed connector info is one of the very first things that we should do in future similar problem threads.

It might be easier/faster for Michael to try his DVI2VGA adapter, cable, and his display in various combinations either using a friend's video card or on a friend's computer, and determine if the problem remains consistent. Ideally, he could find a friend with a video adapter that supports 1920x1200 and that has a built-in VGA connector as well to eliminate the DVI2VGA adapter completely in the cable tests.


* For future reference--re: VGA connector on his video card...
I had earlier assumed from the problem description he simply had a manufacturer's version of the XFX ATI Radeon HD4870 1GB video card that had a built-in VGA connector. In general even the "same" video card from the same manufacturer can have different connector configurations so on first glance, it's not unreasonable. See references 1 and 2 which are both XFX ATI Radeon HD4870 1GB cards. One includes an HDTV/s-vid connector and the other does not. (note: we are also assuming that "XFX" referred to the manufacturer XFXforce and was not just a general reference to CrossFireX)

However, I could not at this time find any versions of the 1GB version of an XFX ATI Radeon HD4870 on the internet that came with a built-in VGA connector, but they all had 2xDual-link DVI-I connectors. However, one XFX 1GB variant includes an "HDTV/s-video connector" in addition to the 2xDVI connectors (1), and another 1GB version had only the 2xDVI connectors (2)...but that was all the 1GB variants I found. I suppose it's possible I simply couldn't find an XFX 1GB version with the VGA connector (because it is now an "older" card) and until confirmed, it's still a possibility his video card has a VGA connector but the DVI2VGA adapter does seem more likely.

I did find a 2GB Sapphire HD4870 CrossfireX card that includes 1xVGA + 1xHDMI + 1xDVI connectors, which shows other manufacturers at least are providing a direct VGA connection on the HD4870 card.(3)


(1)XFX HD4870 (2xDVI + Svid/HDTV)
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150395
(2)XFX HD4870 (2xDVI only)
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150436
(3)Sapphire HD4870 (VGA+HDMI+DVI)
http://en.kioskea.net/guide/1223132-sapphire-radeon-hd-4870-va...-e-2-0-dvi

Michael C Mar 12, 2010, 09:41am EST Report Abuse
>> Re: Help with a new VGA Cable!
Of course I'm using the DVI-VGA adapter, how else would I plug it in? I mentioned the original cable works without issue and when I switch cables, the problem occurs. There's nothing wrong about the way I'm hooking it up. I have a DVI/HDMI cable but I don't use it because as G.G said, I use that port for my PS3.

Michael C Mar 12, 2010, 09:41am EST Report Abuse
>> Re: Help with a new VGA Cable!


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