Controlling the DVI/VGA output

Apologies if this seems off the Keynote topic. I couldn't find any mention of this in the posts.
Is there any way to turn on/off the DVI/VGA output to a projector from the keyboard, (iBook/Power Book)? With the wintel stuff I used to be able to F5/F7 (or whatever) to do this.
Cheers
Rich

I've never seen anything like that on a Mac. Are you SURE that key command on a Wintel actually turns OFF the port? No other port on a computer can be turned off, so that feature surprises me. I'd think it would make a projector suddenly put up a large NO SIGNAL message on your screen.
You can use F7 on a mac to turn on and off Video mirroring if you have a Powerbook, though if you're looking for a way to black the projector, I usually use the projector controls to do that, or freeze the screen. Another option is to make your desktop background BLACK, so when you exit a Keynote show, all the audience sees is black. This only works when NOT using mirroring though.

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T420s Linux and the DVI+VGA port

Hi,
I currently have some problems with my graphic ports of my new ThinkPad T420s (4173-W1J). My problem is a bit complicate (I think) but I will do my best to explain it very detailed. Sorry in advance for any stupid mistakes I made with my configuration.
Problem 1:
I have ordered the notebook with the Intel graphic card, not the NVIDIA one. What I do not understand - If I look in the BIOS of the notebook, I find something with "OPTIMUS", what indicates to me that there is the NVIDIA card inside. Also, if I call "lspci" using my Linux (Kubuntu 11.04) system, I get the following TWO graphic cards:
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: nVidia Corporation Device 1056 (rev a1)
running "lsmod", I get the following output (only relevant video modules, as I identify them to be relevant):
uvcvideo 72195 0
videodev 82052 1 uvcvideo
nvidia 10709116 0
nvram 14419 1 thinkpad_acpi
i915 515121 2 video 19438 1 i915
So I thought - "hey, maybe they made a mistake during configuration and send me the more expensive NVIDIA card included", so I tried to install the nvidia drivers "apt-get install nvidia-current nvidia-settings", but after this my KDE (x-server) does not boot up anymore. After removing the nvidia packages, X-Server booted up again without any problems. How can I find out either of the NVIDIA card is REALLY included, or only the Intel HD? If the NVIDIA is included, what do I have to take care about to enable the correct nvidia drivers?
Problem 2: The main reason why I came to problem 1 was, that I did not get the DVI port of my attached docking station to work. On the one hand, the VGA port works fine, on the other hand every time I attach the notebook to the docking station, I always have to reconfigure the screen resolution and position manually. Even if I say "save as default", he somehow forgets this configuration every time. Also, sometimes the VGA screen does not work, even if I use the same configuration like ever -- I then have to "exchange" the "left of, right of, clone, ..." a few times and it starts working.
For sure, no cable, monitor or whatever is broken - since e.g., I am using the internal and external monitor at the same time right now (in 2-monitor-mode).
So I wanted to solve this issue by using the DVI port - but this port does not work at all (at least I do not know how to enable it!). Using google I found out, that if the NVIDIA card is inside, and the "OPTIMUS"-"feature" is used, than one needs to use the NVIDIA card, otherwise the DVI port does not work. Sadly, as discribed in problem 1, I am neither sure if I have the NVIDIA card inside, nor know how to enable the DVI port at all.
Any help would be very appreciated. Thank you in advance.

Hi,
after I've forced the BIOS to use only the discrete graphic, I now have additional problems.
First, my system hangs every 2nd time before I even see the grub menu (which runs in graphic mode, thus the screen is blue). If it freezes, I only see a blue screen. If not, I see the blue screen with the normal grub menu. This seems to happen every 2nd boot-up.
A similar issue I had before, since I use full-disc-encryption and grub was unable to load the fonts from my hard-disc, so I copies all grub fonts to the boot partition (what is of course not encrypted).
Second problem, I've installed the NVIDIA drivers you suggested, worked without any problem. After restart, KDE showed the nvidia-logo correctly. But after the login, KDE initialises the user-settings, and there he again freezes my system completely (at about 2/3 of the user-settings-initialisation).
To be honest, I do not know how to proceed. :-(

How can i use the DVI-VGA adaptor under this particular circumstance?????

I got a LCD only has DVI-I port, while as u guys has noticed, the MBP only got DVI-I too. So, my first thought is to get another DVI-VGA adaptor. What i'm doing is to hook up the VGA port then plug each DVI port to LCD and MBP. Well, the problem comes out that MBP was able to indentify the Monitor but no image apears on Monitor. How can i solve this problem? Or do i need to buy any other accessaries to configure my MBP in order to make it work with the **** Monitor!

Right. You don't need a DVI-to-VGA adapter to connect DVI-to-DVI, obviously. The included DVI-to-VGA adapter is not meant to connect to the external display/projector, but merely to give you the proper connection to connect the VGA cable of the display/projector. I give a lot of presentations, everywhere I go there is a long VGA cable (at the podium, conference table, etc.); the short adapter is nice because I'd rather not carry a long cable with me...

Use both the DVI & VGA ports on docking station

Is there anyway on the T60 that you can use both the VGA and the DVI ports simultaneously with the laptop LCD (3 monitors). This T60 has the ATI FireGL card.

mbmpcpro, welcome to the forum,
sorry, it's not possible. There are various threads on this subject, here for example.
Andy ______________________________________
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Understanding the DVI Dual output on the new 1900x1200 MacBook Pro

I am looking at increasing my desktop space by possibly purchasing one of the cheaper 28" VIEWSONIC VX2835wm 28" lcd monitors. Its a 1080P monitor, that claims "Digital HDMI input gives you the best possible connection to HD signals for movies, video and games. Multi-mode input technology supports both digital (HDMI or DVI) and analog (VGA) signals.". However, under the inputs it claims the digital is via HDMI only. I see there are DVI to HDMI cables, and since this display doesnt have a DVI port, but again claims multimode input technology, is a DVI to HDMI cable how I would hook this up to my new MacBook pro with 1922x1200 dual link dvi capabilities?
Thanks in advance..

The dual-link DVI on the MBPro can successfully sync to 1900x1200 via DVI to HDMI (HDCP Compliant) adapter cable, no one answered it here, but I got somoene from viewsonic contacting me back. For some reason, viewsonic has a whole 20, 21, 22, 24, and 28 inch series (1650x1050 for 19-24) and 1900x1200 for the 28" series that all have DVI over HDMI adaptor... weird.. but works...

How to control (the input and output) EXE file after I call it using exec?

Hi,
I knew that I can use runtime.exec() to call one EXE file, and this works. But this EXE has two characteristics:
1. After this exe starts, it asks user to input number such as 1 or 2 onto computer screen, then press return. Then the exe will start the calculation.
2. after it starts calculation, it prints 3 columns of numbers onto the screen.
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C:> file.exe parameter
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2. how to redirect the 3 columns of numbers from computer screen to txt file?
My colleague can solve these two questions using Mathematica. So I know that definitely there is at least one solution for it. I just can not do it using Java. This wierd exe file bothered me a lot and I really wish that I can get help from someone in java community.
Thank you!
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When you call Runtime.exec, you get a Process object. (I presume something similar happens when you use ProcessBuilder.) Process has methods with names getOutput, getInput, and getError. These correspond to the standard input, standard output, and standard error streams of the spawned process.
You can read and write to the process on the streams corresponding to input and output that the process writes to the console.
[add]
In fact, you should be grabbing and reading the output/error streams anyway, because of the points raised by the Traps article. Google "Java Runtime exec traps" and you'll probably get a link to this JavaWorld article, which describes common Runtime.exec problems and how to solve them.
Edited by: paulcw on Jun 15, 2010 4:09 PM

VGA output on G4 ibook.

Hi,
I have had the well documented problem with broken solder joints on the video chip so that the screen does not display properly.
http://discussions.apple.com/thread.jspa?threadID=1506226&tstart=0
I have it working and can use it by clamping it to the desk.
What I want to know is does the little VGA output on the side use the same chip or will an external monitor work without it being clamped and use it like a desktop CPU as it is a much faster and better unit than my old G4 Power Mac PCI shown below. It also has OS 10.5 installed.
Thanks from U K for any help,
Alan

Hi Duo,
Thanks for your answer. I thought it probably would be the same chip but thought I would ask.
Regards,
Alan

Concerning: VGA monitors using an Aluminum Powerbook G4 PowerPC 2004 15"-screen 1.5Ghz The DVI (converted to VGA) video output stopped working on this computer after 9 years of service. This raises question 1: Is there any way of fixing this? I've tried

Concerning: VGA monitors using an Aluminum Powerbook G4 PowerPC 2004 15"-screen 1.5Ghz
The DVI (converted to VGA) video output stopped working on this computer after 9 years of service. This raises question 1:
Is there any way of fixing this? I've tried the usual: triple checked all vga cables & devices through trial & error. Bought a new DVI-VGA adapter. Reset PRAM, PMU, etc. Nothing works. Something is probably damaged, because my KVM switch was not working unless I hot-reseated the vga cable into it, leading to this DVI port, and that is pretty rough stuff.
Question 2 (related):
This dovetails into this: Can I drive a VGA monitor with the s-video output port on this computer. It would take an s-video (male)-to-15-pin-VGA adapter. Has anyone does this? So far, I haven't even found the adapter mentioned anywhere.
Thanks for reading this.
el7

Thanks for the useful feedback, Knucklesmac. I agree. I must have blown something on the logic board -- because I had a faulty old KVM switch that would not switch between computers without some nasty hot-plugging/unplugging the VGA video cables. (wince!). It's like when Dizzy Dean ruined his arm because a line drive hit him in the foot and he readjusted his mechanics around the injury. I take the blame because this has been a great computer, and does not deserve any blame.
If it will help anyone else reading this thread, C2G (née Cables to Go) has some interesting ideas for still getting external video out of this computer:
-USB-to-VGA
http://www.cablestogo.com/product/30545
-Convert s-video or composite video signals to high resolution VGA
http://www.cablestogo.com/product/40971
The price range is $75-$85, which doesn't make horse sense to me for such an old computer -- which has a lot of life in it anyway, because its own 15" monitor is not chopped liver.
el7

Can I use the Apple VGA to DVI adapter to connect a PC to a DVI monitor?

Hi
Any idea of the Apple VGA to DVI adapter would work to connect a PC's VGA output to a DVI monitor?
Is it a simple pass through? Or are there drivers needed.

That adapter is for connecting a VGA display to a computer's DVI-I port. A DVI-I port has both digital and analog video pins. The adapter passes just the analog video to a VGA connector. It will not work in the reverse direction because a VGA computer does not provide digital video.
There are VGA to DVI converters that will connect a DVI display to a VGA computer.
<http://www.monoprice.com/Product?c_id=101&cp_id=10114&cs_id=1011401&p_id=8214&se q=1&format=2>
<http://www.aten.com/products/Professional-Audio/Video/Converters/VGA-to-DVI-Conv erter~VC160A.html>
No drivers needed.

Can a laptop with VGA output use the Apple Thunderbolt 27" display?

I bought a 2011 Macbook Air and I'm thinking about upgrading my office monitor. The new Apple Thunderbolt 27" display comes to mind.
However, I also have a Lenovo X201 with VGA output, which I would also like to connect to the Apple Thunderbolt 27" display sporadically.
Will the VGA to mini-display port adapter work? If not, does there exist a VGA to mini-display port converter that will work and if so which one?

You are thinking of that adapter backwards. It is not VGA to MDP but is "Mini DisplayPort to VGA Adapter". This means it will take video out of a a MDP connection and convert it to a VGA connection. It will not go the other direction like you need.
Sorry but that Lenovo just doesn't have the ability to connect to the new display. If it had a HDMI video port like some other Lenovo models, you could adapt from that but I don't know of any VGA to Mini-DisplayPort/ThunderBolt adapters.
Even if you were to use such an adapter, the video card in that laptop couldn't drive a 27" display at the native resolution so it would look very bad.
One other option would be to use the Lenovo X200 docking station which has a full sized Display Port. You would have to use a Display Port to Mini Display port adapter then you could attach the TB cable to it. There is also a USB video replicator that has a DVI-I output then then yet another adapter to get to Mini-Display.
However, both of these options would still be limited by the graphics card at 1920x1080 so it still wouldn't look good.

How do I connect my Cinema Display to my MacBook Pro??? I have the dvi to vga display port thing and nothing works.

How do I connect my Cinema Display to my MacBook Pro??? I have the dvi to vga display port thing and nothing works.

What model (year) MacBook Pro? Depending on the model, it may have DVI, mini DisplayPort, Thunderbolt, or HDMI video connectors.
What model (yeasr) and size (17", 20". 22" ...) display. Depending on the model, it may have ADC, singlre-link DVI, dual-link DVI, or Mini DisplayPort connectors.

Outputting DVI to HDMI input in LCD TV versus using the DVI to RGB ?

I am thinking of buying a mac mini to connect to a Toshiba 20HL85 TV in the lounge primarily to act as a "media server" and accessing Front Row for music, photo's, DVD watching etc. The question is which connection to use to go from the mini to the TV for Video (audio is fine as it will route into my AV Receiver)? The TV has an HDMI input, component video, s-video and a VGA port. The user manual for the TV says:
Note: The HDMI jack is not intended for connection to and should not be used with a personal computer. For PC connection, use VGA cable and connect to the VGA port. The VGA port allows the following resolutions:
Monitor Display modes:
VGA 640x480 60Hz
SVGA 800x600 56.3Hz
SVGA 800x600 60.3Hz
XGA 1024x768 60Hz
WXGA 1280x720 60Hz
WXGA 1280x768 60Hz
I wanted to know a few things as I have no experience with the MAC mini and HDMI:
1. Will I not get a better/crisper/sharper picture if I connect through a digital port like HDMI versus going through the VGA port?
2. I have checked a few LCD TV's user manuals and they all seem to say the same thing i.e. "Do not connect a PC to the HDMI port" - I fail to understand this when the Apple site specifically says under "accessories for the MAC mini" that "HDMI is electrically similar to DVI, but has a different physical connector that may include an audio signal. You’ll need a DVI to HDMI adapter, such as the Belkin PureAV HDMI to DVI cable to use these televisions".
3. What am I missing? Should I just go ahead and buy the DVI to HDMI cable and MAC mini and plug it in i.e. has anyone done this and had it work? Is it better than VGA (I would hope so)?
Bottom line is does the MAC mini connect to any TV with an HDMI port or are there different types of HDMI ports and hence I need to search for the right TV first? If so, what must I look for? Thanks for any help I can get.
Power Mac G5 Dual 2GHz Mac OS X (10.4.5)

One word of advice. I just hooked up my mini to my 32" Lowe HD TV using a DVI to HDMI cable and it doesn't just work. The native resolution of the TV is not available for whatever reason so I have to bodge another resolution which looks terrible. When I plug my powerbook in via a DVI to VGA connector it just does work selecting the correct resolution automatically.
Either the problem lies with the mini or with connecting to the HDMI socket. As the HDMI is simply a dvi with audio I can't see why it would cause problems but who knows. Given all the other problems I am currently having with the mini I am pointing the finger in that direction currently.

My Fall 2009 system DVI output to our HDTV doesn't include audio. Connecting the Macbook headphone output to the TV's RCA plugs works if TV is in AV (PC) mode, but no picture. DVI to HDMI adapter to TV works fine for picture, but no audio.

My Fall 2009 model Macbook Pro DVI output apparently doesn't include audion. Adapting DVI to HDMI works with new LG TV, but doesn't provide sound. Connecting the Macbook headphone output to the TV's RCA jacks give sound with the TV in AV (PC) mode, but no video. Is there a fix for this? Search for a DVI to HDMI adapter that includes a plug for the headphone jack comes up empty, so far.

DVI has never included audio, sorry.
There is also no DVI->HDMI adapter including a plug for audio; such thing cannot work without quite a bit of electronic extra effort.
Instead of much bla-bla, why don't you tell the exact TV model, and we'll try to come up with a solution?
BTW, no home theater AV receiver present, correct? Sound to come from the TV, correct?

Mini-DVI does not work with DVI anymore only VGA output

Hi,
I recently started to get problems with external LCDs. It used to work just fine, but now I can only use a mini-DVI-VGA adapter to get any output. This gives me much worse results than digital and makesme a little worried, other things might also stop s
working.
A quick search here and on google didn't give me any ideas how to fix this.
So any help is much appreciated!
Cheers
GerHi

Have you tried a new DVI adapter?

How can I control the window size of my output?

Hi,
I'm drawing a blank... How do I control the size of the window that my project is viewed in? Right now, it's the entire browser window.
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Hi,
From your post, I assume you are creating WebHelp output.
You need to create a window for the help in the Project Set-up pod. Then, you need to make sure you call the output so that the window is used. See http://www.grainge.org/pages/authoring/calling_webhelp/calling_webhelp.htm. This article on Peter's site give you an overview over the possibilities of calling context sensitivive webhelp and also tells you how to specify the needed window. Also, the installation directory of RoboHelp 8 contains a directory called CSH API. In there are example API's your developer can use to call the help.
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Controlling the DVI/VGA output

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