varunb on 1/12/2008 at 11:09
The problem I am facing is that my 19 inch AOC monitor displays no signal when Vista boots. The screen keeps flickering & grainy & then everything becomes fine the moment the login screen appears. This only occurs if I connect my monitor to the rightmost DVI port. The leftmost DVI port has never given me this problem. I bought this monitor 2.5 months ago & have been facing this since the first day I bought this. I have read about the EDID fix but is it worth trying ? It looks risky too...
here's my PC config:
Intel Core 2 Duo E4600
GA-P35-S3G revision F3a
Segate 500GB HDD
Transcend 2GB 800MHz RAM single stick
Palit 9600GT 512MB graphic card with 180.60 drivers
AOC 19" LCD widescreen monitor
Windows Vista Home Premium SP1 32 bit
rachel on 1/12/2008 at 12:58
Could it just be that the "troublesome" DVI port is the secondary one?
Under XP with dual screen, the second screen sometimes doesn't activate until XP is at the login window... Maybe it's a similar thing here? (I'm thinking that because you say the other DVI port is doing fine.)
bikerdude on 1/12/2008 at 13:01
the obvious answer is to RMA the card as it should work with both DVI sockets - as In an gfx card card, when you plug the monitor into a socket before powering on the pc it should come up on that.
Also what drivers have you got installed..?
biker
varunb on 1/12/2008 at 13:27
Quote Posted by Bikerdude
Also what drivers have you got installed..?
180.60 drivers (Cuda enabled)
Another thing that I forgot to mention is that these symptoms do not show up always. When these show up & if I restart my PC once or twice after that, then everything is fine.
rachel on 1/12/2008 at 16:46
It sounds like the graphics card is bad. It's probably not the screen you should be worried about, as there are no issues when you plug it to the other DVI plug.
varunb on 1/12/2008 at 17:28
Ok but if the graphic card is faulty then why does the display gets normal on reaching the login screen ?
bikerdude on 1/12/2008 at 19:43
Quote Posted by varunb
Ok but if the graphic card is faulty then why does the display gets normal on reaching the login screen ?
Ok, can you make a video of what it is doing..? one idea is to use your mobile..does your mobile record video..? and can you connect your mobile to the computer.
biker
the_thiefster on 2/12/2008 at 03:40
Quote Posted by varunb
Ok but if the graphic card is faulty then why does the display gets normal on reaching the login screen ?
Trust me, VRAM issues are weird. I'd say go RMA your card too
varunb on 2/12/2008 at 04:00
Quote Posted by Bikerdude
Ok, can you make a video of what it is doing..? one idea is to use your mobile..does your mobile record video..? and can you connect your mobile to the computer.
Here it is:
<a href='http://www.mediafire.com/?tx2uzqem2hy'>http://www.mediafire.com/?tx2uzqem2hy</a>
Update: I m starting to think that my DVI-D cable is faulty. Take a look at these pics guys. One pin from the leftmost group of 9 pins in each connector is shorter than the others. Is this the cause of the problem ?:
Inline Image:
http://i36.tinypic.com/9sfnt2.jpgInline Image:
http://i35.tinypic.com/rll6e1.jpgbaeuchlein on 2/12/2008 at 10:43
Warning: I was wrong, the pin here is supposed to be like that.:tsktsk: See Bikerdude's post below for an explanation!
Here's my original advice, but you better forget about it...
I don't know whether this dislocated pin causes the problem you have, but there is definitely something wrong there. However, I think that the pin is not really shorter than the others, but it is dislocated and has "sunk" into the connector. If you use tweezers or pliers, you can pull the pin out carefully until it is "long" enough again. It should wedge itself in the connector again, then.
The pinout I found says that this pin delivers +5 V, while at least one other pin in the immediate vicinity is marked as "ground". Should these accidentally make contact, a short circuit would be created, and the video card or the display could even be damaged. The latter is not very likely, but still possible.
If you have a second cable available, swap them and see what happens. Anyway, the one you use needs a little bit of repairs, as stated above.
