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Viewsonic VG2030wm not detected on DVI

Hello,

I got a MacBook Pro 13' and purchased at the same time a Mini DisplayPort to DVI Adapter to use with my ViewSonic VG2030wm. To my surprise, when I connected the monitor absolutely nothing happened, it goes completely undetected. The monitor works perfectly fine with a PC using an Nvidia 8600 through the DVI connector. I tried with both a single and dual link cable. I seem to be not the only one with this problem since I've found a few posts around but with no answers.

Later I exchanged the DVI adapter for a VGA one and the monitor worked fine but I would like to be able to use the DVI quality. I've asked twice at the Apple store and nobody has heard of such a problem. The monitor specs say it has a DVI-D (with HDCP) port.

Any ideas?

Thanks!

Hector

MacBook Pro 13'', Mac OS X (10.5), none

Posted on Aug 18, 2009 4:09 PM

Reply
17 replies

Sep 14, 2009 6:44 AM in response to canek88

I'm having the same symptoms with a Viewsonic VX2233wm. I can run the monitor from my PowerBook G4 with its min-DVI to DVI adapter. The cable is single-link DVI-D. When plugged into the Macbook Pro, I get nothing. When I press the button on the monitor to change inputs to DVI, the MacBook Pro's screen goes blue as if the laptop is trying to initialise the screen, then gives up and goes back to my desktop. The Viewsonic monitor reports no signal.

Same thing happens if I'm running the 9400 or the 9600 GPU. I've reset the PRAM and the SCM and seen no change.

Oct 5, 2009 3:38 PM in response to Nic Jones

I have the same problem with a 13" MBP + DVI adapter + Viewsonic vx2235wm (which is slightly older than the current generation viewsonic panels). It just will not detect the monitor at all.

The MBP will display fine on a Lenovo L2240p Wide which is also a 1680x1050 resolution monitor.

I'll try the VGA interface of the Viewsonic, but it's not an ideal solution.

Nov 2, 2009 10:15 AM in response to canek88

I had/have the same problem with a MacMini (with an Intel GMA 950), VG2030wm monitor and DVI cable. It worked fine with a VGA cable (but I had to use SwitchResX to pick the native 1680x1050 resolution).

I partially solved the problem (in Mac OS X 10.6) by unplugging both the MacMini and VG2030wm from the wall for 1-2 minutes (to reset the VG2030wm's settings?), and then resetting the MacMini's PRAM (by pressing and holding Command + Option + P + R while booting).

Unfortunately, I still have problems (black screen or native resolution not detected) when I restart o wake up the MacMini. The workaround I have found is to turn off the monitor (with the button on the front panel), wait a few seconds, and then turn it on again (and repeat) until the Mac Mini's picks up the monitor at 1680x1050 resolution.

I think there should be a way to force (instead of detecting) the EDID display information of the VG2030wm in Mac OS X by editing the /Library/Preferences/SystemConfiguration/com.apple.Boot.plist, but I don't know how to do it (or if it's possible at all).

Hope it helps a little.

Regards,

Nov 10, 2009 7:43 PM in response to canek88

Apparently the NVIDIA video cards that are in the 2009 MBP (GeForce 9400M & GeForce 9600M GT) and/or the Mini-DisplayPort to DVI adaptor don't work with (some? all?) Viewsonic monitors. After considerable searching of the Apple Support forums, I have found many people with the same symptoms, but no answers.

Between Apple, NVIDIA, and ViewSonic, you'd think someone would have figured this out by now. My Viewsonic monitor is only about 3 years old, but I've been told that there is no fix and I'll have to buy a new monitor.

Any help?

Nov 12, 2009 3:10 AM in response to canek88

This appears to be mostly fixed for me with the update to 10.6.2. There's still some issue with the monitor not switching to DVI when there's also a valid VGA signal being fed into it (it looks like switching to the DVI input causes the Mac to start its "I've got a new monitor" sequence, but this takes too long and the Viewsonic monitor gives up and switches back to the VGA input) but if the Mac is the only thing connected to the monitor it will now work.

Jan 6, 2010 9:50 PM in response to canek88

Looks like I shouldn't have been crowing about it - it's now stopped working again. I've changed nothing. One day it was basically working, the next it's not.

This has been bloody frustrating. Along with a dead HD (replaced), loose hinge (does not warrant replacement), screws falling out (Apple only sels the screws to technicians in huge volume so they're hard to get) the aluminium pitting (not covered by warranty) and the once a day or so it hangs and needs restarting, this MacBook Pro has been an absolute lemon. I've been buying and using Apple computers since the Apple IIe and I've never had one as problematic as this.

Jan 12, 2010 7:25 AM in response to canek88

I have just discovered exactly the same problem between my brand new macbook pro and my 3 year old VG2030wm : the screen used to work fine with my old macbook pro , with a normal DVI cable, but now it only works in VGA, via a mini-DVI to VGA adapter. And I have all the controls because at home I have a VG2032wm, which works just fine in DVI with the same cables. It is just the mini-DVI / VG2030wm combination that does not work. At the end of the day, I'll live with the VGA, but if anyone has a solution, I'd love to hear of it.
Thanks
Etienne

Viewsonic VG2030wm not detected on DVI

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