Digital BW, The Print

I've been bouncing around the web getting no good answers on this so I though I'd ask it here, with all the PS users, some probably sporting dual monitor setups with Macs. My second monitor began getting hard to wake up, and would flash, or start dim, etc. before waking up in the AM. Now, I can't seem to get it to come on at all, though it will flash a bit when switching "mirroring" on and off...
It's been suggested my graphics card can't power both well, sounds reasonable but I'm not sure why it would drive both at first, then slowly fail. I can't recall how I tested this, but it doesn't seem to be the monitor itself.
Anyone know anything about this? There seems to be similar questions all over the web, and no expert replies.
Thanks, Tyler

John, we're on our way over with your meds

If that second monitor happens to be an Apple LCD it could be the voltage adapter, known as the brick. That is exactly what happened to mine. They were known to be defective on many models. Replacing it solved the issue.

The other thing is something could be wrong on the main board of a Mac. I had this happen also, replaced the graphics card and it was still going on with the G5, only the mac would keep going to sleep for no reason, but only when it was first turned on in the am. It is still doing that randomly and with other monitors also so it's most likely on the mother board of the mac. 

j

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "tboleyyh" <tyler@...> wrote:

>
> I've been bouncing around the web getting no good answers on this so I though I'd ask it here, with all the PS users, some probably sporting dual monitor setups with Macs. My second monitor began getting hard to wake up, and would flash, or start dim, etc. before waking up in the AM. Now, I can't seem to get it to come on at all, though it will flash a bit when switching "mirroring" on and off...
> It's been suggested my graphics card can't power both well, sounds reasonable but I'm not sure why it would drive both at first, then slowly fail. I can't recall how I tested this, but it doesn't seem to be the monitor itself.
> Anyone know anything about this? There seems to be similar questions all over the web, and no expert replies.
> Thanks, Tyler
> 
> John, we're on our way over with your meds
>

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "tboleyyh" <tyler@...> wrote:

 My second monitor began getting hard to wake up, and would flash, or start dim, etc. before waking up in the AM. Now, I can't seem to get it to come on at all, though it will flash a bit when switching "mirroring" on and off...

I had that problem with a Vuescan VP930b.  Google search came up with blown capacitors.  Local VCR repair guy replaced four for twenty bucks after I took the power board out of the monitor and dropped it off.  His take was cheap chinese capacitors.  Makes sense, the capacitors are used to fire up the various power functions.  Blown capacitors will cause the screen to flicker until it catches.  The more capacitors that are blown make it harder and harder to start until it just won't go at all.  The first capacitors to go put further loading on those down the line until they are all blown.

Run a google search for your monitor model and capacitors and see what comes up.

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "robert49brake" <robert49brake@...> wrote:

 Vuescan VP930b.  

sorry, got scanners on the brain tonight, meant ViewSonic vp930b.

On Apr 11, 2010, at 9:11 PM, tboleyyh wrote:

> It's been suggested my graphics card can't power both well, sounds  
> reasonable but I'm not sure why it would drive both at first, then  
> slowly fail. I can't recall how I tested this, but it doesn't seem  
> to be the monitor itself.

Start by disconnecting both displays, hooking the problem display in  
to the OTHER port. See if it runs okay that way. If so, its probably  
not the display. Next hook what was the primary monitor to the  
secondary port, and see if the problem now occurs with THAT display,  
indicating that its the second port. At that point, if you don't have  
a second slot for a second card, get a new card with full dual port  
functionality. If you can support two cards, get a cheap second card,  
and continue to use the main card for the main display, and the second  
card for the second display. At least until the older card dies  
altogether, which may or may not be in the cards...

Cards are cheap these days, its slots that are precious. You can often  
use a PCI Express card in a slot that would not support a typical  
display card, and PCI Express are the one type of cards that  
consistantly seem to support two profiled and calibrated displays at  
once... even under Windows.

C. David Tobie
Global Product Technology Manager
Digital Imaging & Home Theater
CDTobie@...


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Datacolor
www.datacolor.com/Spyder3





[Non-text portions of this message have been removed]

just wanted to give a very belated thanks for this post, so that if anyone else has the problem it's here in the archive. After problems placing the order and delivery to correct address, I finally got the replacement caps and my monitor runs like new. A little past electronics assembly experience helps, but for $12 and 1/2 hour of work, problem solved.
Thanks for the advice.
Tyler

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "robert49brake" <robert49brake@...> wrote:

>
> 
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "tboleyyh" <tyler@> wrote:
> 
>  My second monitor began getting hard to wake up, and would flash, or start dim, etc. before waking up in the AM. Now, I can't seem to get it to come on at all, though it will flash a bit when switching "mirroring" on and off...
> 
> I had that problem with a Vuescan VP930b.  Google search came up with blown capacitors.  Local VCR repair guy replaced four for twenty bucks after I took the power board out of the monitor and dropped it off.  His take was cheap chinese capacitors.  Makes sense, the capacitors are used to fire up the various power functions.  Blown capacitors will cause the screen to flicker until it catches.  The more capacitors that are blown make it harder and harder to start until it just won't go at all.  The first capacitors to go put further loading on those down the line until they are all blown.
> 
> Run a google search for your monitor model and capacitors and see what comes up.
>