Second Monitor seen as "VGA Display"

Has anyone seen this before? I have a Mac Pro 1,1 with 2 nvidia 7300 GTs, and three Acer x193w displays connected using VGA to DVI adapters. Only one of the monitors is recognized as a "x193w" with the second and third seen as "VGA Displays". The primary monitor has the appropriate resolution listed (1440x900) but the second and third do not. All resolutions listed for the second and third displays cause them to be askew (a round circle appears oblong). I have tried booting OS X 10.5 with the same results. This is a new machine to me as well as being new to MAC so please forgive me if this has been discussed on this forum somewhere as I could not find it.

Yes, adapters are the same, cables are the same, and monitors are the same. We have tried switching adapters and cables with no change. It appears that of the two video cards only one of the four heads sees the monitors for what they are. It does not matter which of the three monitors is connected to that port.

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Using a second monitor as the primary display with MiniDisplayPort

I've got a new iMac, but the screen seems to be straining my eyes. I'm trying things like scaling the display, lowering brightness, changing desktop layout, etc, but if all else fails...I'd like to go back to my old external monitor.
So, my question is...if I connected this monitor to the MiniDisplayPort on the iMac, could I use it as a single primary display, or would I have to use it as mirrored or secondary?

Hi Brian,
Thanks for using Apple Support Communities. You can mirror the displays or make whichever display you want the primary in Extended Desktop mode. See this article for details:
How to use multiple displays with your Mac
http://support.apple.com/kb/HT5019
The white bar at the top of the left blue box represents the menu bar and determines which display is your primary display. To change your primary display, click the white bar and drag and drop it on the blue box representing the display you would prefer to be your primary display.
Cheers,
- Ari

Selectively turn off second monitor

I am running 24" iMac with a second monitor connected via VGA (no DVI on second monitor). When I do not want to use the second monitor, I have to unplug it from the iMac so the mac stops using it. Is there an easy software switch or, preferably, a keyboard switch (like a windows F key), that I can press to disengae/reengage the second monitor? I suspect there is something in the monitors control panel, but I don't want to dive down that far every time I want to use it/not use it.

I am experiencing the same problem with a Samsung Aquos 52" connected thorough a Onkyo receiver/amplifier. The connection is DVI to HDMI to Onkyo amplifier and HDMI-HDMI to the TV. The main 23" Cinema Display flashes during turning on an off of both of TV and the amplifier and even when the TV is off and the amplifier is on, unless you restart the computer, it would keep detecting a second display, the only solution so far was to unattach the second display DVI to HDMI cable from the computer. Otherwise, several freezes occur after several flashes of the cinema display and eventually either the dock o the whole screen would freeze...Anyone knows how to avoid this issue? Btw, my id card is NVIDIA GeForce 6600.

Enable/disable second monitor Mavericks - only software solution.

I am looking for a way to disable a second monitor (plugged into the Display Port of a 2011 Mac mini) without unplugging it. Does anyone know of a software solution?
When I am working I like that second monitor for desktop space, but other times (watching Netflix for example) the second monitor (in my case TV Sony Bravia) taxes the video card to much and degrades video playback performance. It would be great to have a software switch to ignore the second monitor. Right now, the only way I have found to do this is to unplug the display port cable from TV.
SwitchResX doesn’t recognize any of monitor or TV in Mavericks, so the app is useless. It would be fantastic if anyone know software solution (I really would like to have plugged second monitor all the time).
Thanx

I've been using SwitchResX for quite a while, sometimes buggy but very useful: http://www.madrau.com
best,

Cannot detect second monitor

Hi Everyone.
I am teaching on a Power Mac G5 10.5.7
Processor 2x2.66 2GB memory
I have a projector hooked up as the 2nd monitor. Sometimes when I come into teach the projector doesn't get a signal from the computer.
I've had our IT department out many times and sometimes we get it to work by switching around the two monitor cables into their slots in the back of the tower. Two weeks ago we swapped out actual monitor cards on the mother board.
But we are still having issues of the projector not getting a signal. I'd say it's 50/50. Some days it works... some days it doesn't. When the set up does work it's works great.
I've tried everything. I've tried starting the projector first then the computer and vice-versa. I've tried selecting detect displays from System Preferences.
The projector seems to be working. It's projecting an image onto our screen but it's simply the logo and there is an error saying "no signal."
Any help is greatly appreciated.
-Fraky

I tried plugging a second monitor with a *Mini Display Port to DVI adapter*... work 1 out of 100
Tried with a 23'' Cinema Display, With DVI Cintiq Display and 32'' LCD TV (1280x768), everytime with the same problem, the MBP screen blinks (blue) but the second monitor stay with the message "NO SIGNAL" and nothing happens, Macbook don't detect, no option to change resolution, tried plug/unplug (sometimes with the computer off), restarted (computer and monitor) several times, reseted PRAM more then once, changed from 9400 to 9600M and so on...
I'm going crazy!
Now I have two options:
1. in case of a *driver issue* (wait for Apple for an update solution)
2. in case of a *hardware issue* (use the Apple 1 yr warranty and stay a long time without my work machine, waiting repair, since it's a custom MBP)
I only have to be sure wich case is true.
Message was edited by: estudiodrops

Full screen playback on second monitor results in having to force quit Premier if a window opens on the second monitor.

Run into this problem a few times now. If I have full screen playback going to my second monitor, and then I try to do something like link media and the link media window opens on that second monitor I can't figure out a way to get to it. I end up having to force quit. Because the link media window causes all other application buttons to disable while it is open I have not been able to find a solution other than force quitting, reopen and disable full screen playback, open link media window and move it to the other monitor and then again enable full screen playback.
Has anyone run into this? Am I missing an easy solution?

You need to set up your Graphics Card Application first eg A and B Monitors , side by side etc.
In my case..a NVidea Display Application does this from the Control Panel
Then the second monitor will appear in display setting (Premiere).
My second monitor is entirely dedicated to full screen playback display.

How to connect my Cinema Display as a second monitor

I just purchased a new 27-inch iMac, and I explained to the Apple folks that I had a 17-inch cinema display (silver clad model) that I wanted to connect, for a dual monitor set up. They told me just to get the Mini DisplayPort to DVI Adapter, but I was surprised to realize that's not going to work.
Can anyone tell me how to do this, and what connector is actually needed? I have the big old white power brick that I bought to daisy chain my old 17 and 23 inch displays with my old configuration (Mac Pro).
Or can you not have a second monitor with an iMac?
Thanks in advance.

Hi Cathy,
What connector is on that Cinema? ADC, VGA, or DVI?
Video Card:
GeForce GTX 675MX
VRAM Type:
GDDR5
Details:
This model has a NVIDIA GeForce GTX 675MX graphics processor with 1 GB of dedicated GDDR5 memory. At the time of purchase, it can be custom configured with a NVIDIA GeForce GTX 680MX with 2 GB of dedicated GDDR5 memory for an extra US$150.
Standard VRAM:
1 GB
Maximum VRAM:
1 GB*
Built-in Display:
27" 16:9 Widescreen
Native Resolution:
2560x1440
Details:
This model has a 27" LED-backlit 16:9 widescreen TFT active matrix display with IPS technology and a native resolution of 2560x1440. Apple also reports that the "cover glass is fully laminated to the LCD and an anti-reflective coating is applied." Previous Aluminum iMac models have the LCD covered by glass. The company no longer reports viewing angle or contrast ratio, however. Site sponsor Mission Repair offers free diagnosis of iMac hardware problems and a 24-hour repair service for this iMac. Display replacement, keyboard replacement, a hard drive upgrade service, and more are provided.
2nd Display Support:
Dual/Mirroring*
2nd Max. Resolution:
2560x1600 (x2)
Details:
*This model can simultaneously support two external displays up to 2560x1600 via Thunderbolt.
http://www.everymac.com/systems/apple/imac/specs/imac-core-i7-3.4-27-inch-alumin um-late-2012-specs.html

Second monitor using VGA to HDMI or alternative?

Hi,
I recently purchased a HP ENVY TouchSmart 15-j038tx Notebook PC.
I have a Dell monitor, which only uses the VGA output.
I have a sony vaio VGA to HDMI adapter, and I tried this adapter with the monitor, it worked fine. I was able to use the monitor as second screen.
However, when I use the same adapter on the HP computer, the second monitor is black and do not get recognised.
Can someone please helpe me!!!!
Do I need to buy a new VGA to HDMI that's specifically built for HP computers?
Or
Do I need to download some drivers to make this work? I just updated the computer with the drivers as I purchased this only a few weeks ago.
or
Do I need to get a different adapter? like VGA to USB? Is there such a thing?
The Dell monitor is about 5 years old, but if it works on my Sony Vaio Pro 13 Laptop that just got released, I don't see why it won't work on the HP too.
Many Thanks

There is a possibility that all you need to do is go into the display properties of the HP and have it look for the adapter.
First the model number of the HP and then the Windows version that is installed, please.
{---------- Please click the "Thumbs Up" to say thanks for helping.
Please click "Accept As Solution" if my help has solved your problem. ----------}
This is a user supported forum. I am a volunteer and I do not work for HP.

I'm trying to set up a dual monitor for my new iMac. I'm using a second display I used with my old G5. My iMac recognizes the second monitor but the monitor won't turn on. Power button doesn't do anything on the monitor itself.

I'm trying to set up a dual monitor for my new iMac. I'm using a second display I used with my old G5. My iMac recognizes the second monitor but the monitor won't turn on. Power button doesn't do anything on the monitor itself.

If it won't turn on then the monitor is dead (power supply?, video circuits?). Not worth repairing.
If you have a new iMac then it has thunderbolt. So exactly what is that monitor you are trying to connect? For TB you can connect a mini-displayport monitor. Probably (not 100% sure with TB) can use dvi or vga too if you have the appropriate adapter.

Extending display with second monitor

I am trying to add a second monitor to expand my desktop area. I routinely do this with my G5 laptop by simply plugging in a second monitor, clicking on DISPLAY in SYSTEM PREFS, clicking ARRANGEMENT, and clicking off MIRROR DISPLAYS.
With the iMAC G5 ARRANGEMENT does not appear as an option and default seems to be mirror. Any way to make this work?

This is an update to my previous post. I searched on Google about this problem and found an answer -- an old Macworld article:
http://www.macworld.com/article/39969/2004/10/imacscreenspanning.html
It describes a freeware program called Screen Spanning Doctor. I printed out the page and followed the instructions. It worked! I now have a Samsung SyncMaster 930B set at 1280 x 1024 and my iMac G5 set at 1440 x 900 (maximums for both) and They are not mirrored; the Samsung monitor extends the desktop of my iMac G5. I couldn't be happier.
Just in case Screen Spanning Doctor does not work for you, be sure to print out this Apple support document, Resetting your Mac's PRAM and NVRAM:
http://support.apple.com/kb/HT1379?viewlocale=en_US
You can never be too careful. I believe what this will do is undo whatever changes Screen Spanning Doctor does. Per the Readme:
"This program is intended to unlock some features of the graphics hardware in some Macs (iBook, iMac, eMac but not for all models - you can find a complete list at my website http://macparts.de/ibook). On supported Macs it will allow the use of an extended desktop where usually only mirrored mode is available. This enables you to use an external display to extend your workspace. It will also unlock additional resolutions for the external display making it possible to driver high-resolution screens. This is especially nice if you want to use an LCD panel that has a higher native resolution than the 1024*768 of the internal display. After you apply the patch you should see an additional tab in the displays prYou will only see this tab if you have at least the monitor adapter plugged in."
Good luck! (I'm going to make a donation to macparts.de, which created this program. I figure it's worth $19 -- what I paid for the VGA display adapter at the Apple Store.

Does the hp touchsmart 320m have a vga port for a second monitor?

does the hp touchsmart 320m have a vga port for a second monitor?

raybassett wrote: does the hp touchsmart 320m have a vga port for a second monitor?
Hello raybassett, Here is the link for the specifications for your system. It does not appear it has any external display connectors at all.
Please click the White Kudos star on the left, to say thanks.
Please mark Accept As Solution if it solves your problem.

I get no image sent from my iMac to my second monitor using VGA adaptor

I am not getting any image sent from my iMac to my second monitor. I am using a VGA adaptor. Any suggestions?

Is it not detected in Displays?
Which exact eMac is it?
At the Apple Icon at top left>About this Mac, then click on More Info, then click on Hardware> and report this upto but not including the Serial#...
Hardware Overview:
Model Name: iMac
Model Identifier: iMac7,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 6 GB
Bus Speed: 800 MHz
Boot ROM Version: IM71.007A.B0

How can i use my smart TV as a second monitor for my Power mac (2010) via HDMI cable? i've made the connection but no options show in system prefs display.

How can i use my smart TV as a second monitor for my Power mac (2010) via HDMI cable? i've made the connection but no options show in system prefs display.
the computer:Mac Pro, Mac OS X (10.9.5), 2 x 2.66 Ghz 6-Core intel Xeon
the TV: LG Smart tv

The Mac uses a highly-parameterized universal Driver for every display. The parameters are set at certain times when a query is sent to your display. The display MUST answer with its name and capabilities, or the screen stays dark. A TV set that is off or "not paying attention" because it is set to a different port when the query occurs will rarely answer, and so will often remain dark.
You can use tools in the System Report to see whether your display has been detected at all. If it has, the report will look something like this, but its name will appear:
The times when the query is sent are:
• at Startup
• at wake from sleep
• when the Mac-end of the cable is inserted
• when using the Option ( Detect Displays ) button in displays preferences

I want to use my apple TV as a second monitor not a mirrored one, in other words, I want to use my TV as a second screen not a copy of my first screen,other people have asked this question but have been given mirroring answers. I want a second display.

I want to use my apple TV as a second monitor not a mirrored one, in other words, I want to use my TV as a second screen not a copy of my first screen,other people have asked this question but have been given mirroring answers so I am spelling it out here very specifically. I want a second display. This should be possible and would be awesome. Anyone know how to do this?

Nevermind I just installed it to try it and it's awesome, so happy right now, Thanks. All the things I had read about it on third party sites led me to believe it could not do extended desk tops, thanks for your help!

Mac Mini 2012 and I want to use a new 27" Lighting Display and my old 27" Cinema Display as a second Monitor

Evening all,
I have a Mac Mini that I have been using a 27" Cinema Display on for a couple years - works GREAT, love the Mini and that display. The Cinema Display has Power for a Laptop, USB connector and a Mini Display Port connection on it.
I am a Guitarist / Songwriter and I use Pro Tools a lot. So I thought I would invest in the new Lightning Display for my Mac Mini. I would get the extra ports for Firewire, and USB, as well as now I could "Daisy Chain" my old Cinema Display off the new Lightning Display.
WHAT A PAIN IN THE BUTT THIS HAS TURNED INTO !!!! I have honestly spent more than 6 hours trying to find adapters or ways to make these monitors BOTH work at the same time with the Mac Mini ( you know, a Dual Monitor Setup . . .)
HELP !!!
1 - If I could find a HDMI MALE to Mini Display Port FEMALE adapter, I would run it on the HDMI interface - apparently no such adapter exists.
2 - You apparently can NOT daisy chaine the Cinema Display off the Thunderbolt Port on the new Monitor ( silly that that does not work, but it does not )
I am really stuck here - how do I get these monitors to work as "Dual Monitors" on the Mac Mini ???
Thanks !

The HDMI port won't work for a 27" monitor, it maxes out at 1920*1200...
Supports dual simultaneous displays -- 1920x1200 on an HDMI display or a DVI display using the included HDMI-to-DVI adapter and 2560x1600 on a Thunderbolt or Mini DisplayPort display or even a VGA display (with adapter). Thunderbolt is backwards-compatible with Mini DisplayPort-equipped displays as well as adapters that are compatible with Mini DisplayPort (DVI, VGA, dual-link DVI and HDMI).
http://www.everymac.com/systems/apple/mac_mini/specs/mac-mini-core-i7-2.3-late-2 012-specs.html

Second Monitor seen as "VGA Display"

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