VGA to thunderbolt issues

Hello, I have a mid 2011 iMac i5. I have an older dell monitor that I am trying to add as a second display. When I hooked up the monitor I used the VGA to divi adapter, then divi to thunderbolt. I don't have the shorter VGA to thunderbolt adapter or else I would use it. The hookup doesn't work. Is there a certain setup I need to do to the computer? The iMac doesn't seem to recognize the other monitor, or send the second monitor any info to display. The adapter is a thunderbolt adapter, not the mini display Thanks!

Pleding007 wrote:
I understand I COULD go out and buy other adapters. I am simply using what I have with me....the question was will this work. It's not like I went to the stores trying to have a long chain of adapters.
If you want it to work then you need to go out and buy the adapter I suggested. Trying to complicate the issue by using what you have on hand is a waste of time and effort, however if you don't want to follow my suggestion I'm OK with that but I think you will eventually find out my advice is the correct answer.

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Mini-Displayport to DVI adapter not working, but Mini-Displayport to VGA and Thunderbolt work fine

Mini-Displayport to DVI adapter not working, but Mini-Displayport to VGA and Thunderbolt work fine.
This is a brand new MacBook Pro (15-inch, mid-2012) just received. I suspect that this is a hardware problem as:
The mini-displayport to DVI adapter and the external monitor that I am utilizing connect and operate just fine using my older MacBook Pro (mid-2010) with the same OS.
The new MacBook Pro powers the external monitor with a mini-displayport to VGA adapater without issue.
The new MacBook Pro powers an Apple Thunderbolt display without issue.
Both MacBook Pro's are running OSX Lion 10.7.4.
The only combination which does not work is the mini-displayport to DVI adapater used in conjunction with the brand new MacBook Pro (mid-2012).
All adapters and components (mini-displayport adapters) are Apple retail adapter.
I have tried several external monitors, including my Dell U2412m.
When I connect the mini-displayport to DVI adapater to the new MacBook Pro (mid-2012), nothing happens. The external monitor reports "no signal" and attempts to go into sleep mode. Using the "Detect displays" button has no effect, even when used multiple times. Rebooting does not help, nor does resetting the SMC or PRAM.
Any other suggestions before I take it to the Genius Bar?

I turns out that the logic board of my MacBook Pro was faulty (despite being brand new).
I took it to the Apple Store, presented the problem, and one of the Tech's came to the same conclusion that I had -- hardware failure. Phone support was no help in the matter (and even told me that what I was trying to do wasn't a supported option, which is rediculous). However, the Genius Bar did take care of the problem, and my MacBook Pro was back to me with a replaced logic board within a few days.
Hope that htis helps.

Is the LG 22EN33S-B 22-inch LED 1920 x 1080 VGA Monitor compatible with mac via a vga to thunderbolt connection

Is the LG 22EN33S-B 22-inch LED 1920 x 1080 VGA Monitor compatible with mac via a vga to thunderbolt adapter?

The 1080p and 1080i options only appear on the HDMI display settings, the display settings for the thunderbolt to vga adaptor has 1920 x 1080.
Via the HDMI output of the Mini via an HDMI cable to a HDMI input on the Samsung the display fills the screen but the text looks vile.
The options for picture adjustement on the samsung include fill screen as you suggest
Using the thunderbolt to VGA adaptor the text looks as it should, crisp and clear but the display is shitfted to the right.
The options for picture adjustment on the Samsung does not have the 'fill screen' option available when the VGA input is selected. However a new option called 'pc screen adjustment' appears and you can nudge the display over to the left a bit but not enough to cover the whole screen.
I remind you the pc worked perfectly 1920 x 1080 on the same VGA cable and input to the samsung.

HT204244 Is a MacBook Pro (non-retina from 2011) also updated for the Thunderbolt issue? Or Retina MacBooks only?

Is a MacBook Pro (non-retina from 2011) also updated for the Thunderbolt issue? Or Retina MacBooks only?

Go to Geekbench
http://browser.primatelabs.com/mac-benchmarks
and check out the relative values for the system you're currently using versus the one you're going to buy. My guess is a fullly spec'd MBP Retina will do the job, but you're undoubtedly better qualified than anyone on here to tell what kind of a machine you need.

Thunderbolt and MDP to VGA Adapter Compatibility Issue?

Hi Veterans,
I know this topic have been asked a lot of times by different people who faced the issue in different way. However, i am unable to find an absolute solution to the problem i am facing currently.
My question is, can a 3rd party made, Mini Display Port to VGA adapter works on MBP & iMac that have mini display port and not on those that have thunderbolt port??
I have a 3rd party made, Mini Display Port to VGA adapter that i have tried on 3 apple PC / laptop,
A MacBook (13-inch, Late 2009) which comes with Mini DispayPort, the adapter work with this laptop.
A iMac (21.5-inch, Late 2009) which comes with Mini Display Port, the adapter work with this PC too.
A MacBook Pro (13-inch, Late 2011) which comes with Thunderbolt port, the adapter does not work with this laptop. I have tried many solutions i can find on this forum and none helped.
The software is fully up-to-date as of 30 April 2013, running Mac OS X 10.7.5 (Lion).
Tried safe mode, does not helped.
Tried the boot up when monitor is already switched on procedure, does not helped.
In all cases, it was tested on the same external monitor. As my MBP was dual-booted using Bootcamp assistant 4.0, i also tried in windows-mode (windows 7) which didn't work too. In windows mode, the screen just keeps flickering while in mac-mode i get a light blue screen. In both cases, the external monitor shows nothing. The external monitor is a Compaq FP7317 monitor with native resolution 1280 x 1024 at 75.0 Hz.
All these trying have leave me very perplexed. From my research, the thunderbolt port is suppose to accept devices meant for mini display port. So how could an adapter that work on mini display ports, not work on a thunderbolt port? Can any expert enlighten me?

Problem solved. I picked up the MDP to VGA adapter and was able to use the monitors native res of 1920x1200 but the flicker and wavyness made it impossible to use. And yes the adapter had the current firmware. But what I discovered in the process was that in mirror mode I am unable to drive the monitor at optimum resolution. With that in mind I tried the MDP to HDMI adapter again, unchecking mirror mode, moving the Finder bar to the external display and SHAZAM. I have a rock solid display external display now running at 1920x1200 : )

Thunderbolt issue vga dvi

On the new mac mini with Thunderbolt, problems with monitors like macbook.
Thunderbolt - Minidisplay to VGA - screen not activate, diferent screens.
HDMI > DVI - Eizo screen S2202W, switch from vga to dvi, screen 3 sec snow before right image.
VGA and DVI screen to mac mini, VGA screen as master.
At boot, screen DVI as startup screen, VGA black
after boot both screen black and then image on both screens.
After disconnect vga screen
Both screen setup in one screen.
Are there users with the same problems.

There do seem to be a lot of people having problems (possibly everyone trying to use a VGA monitor) on the new Mac mini.
If you can you should use DVI or HDMI, however if you have to use VGA it seems that turning the Mac on waiting for it to finish booting and only then connecting the Mini Displayport to VGA adaptor works.

Macbook air Mini DisplayPort to VGA Adapter connectivity issues

Hi pple,
Would like to ask if anyone is facing connectivity issues with Mini DisplayPort to VGA?
I am currently using the 2nd Gen Macbook Air with Intel HD Graphics 3000 384 MB. Sometimes when I connect to a montior (Viewsonic VA1918wm) it works fine, sometimes it just does not work and the laptop just shows me a blue screen.
I tried with out with my friend's Mini DisplayPort to VGA adapter, it has the same problem. Does this means that my macbook air mini disoaly port got a problem?
Thanks
Bryan

I am experiencing the same kind of problem... only with projectors. Some projectors will display the screen and then others wont even register with the MacBook Air.
Using an Apple Min Displayport to VGA adapter. It's hit or miss if it works. Firmware has been updated on the adapter but this did not help.
Anyone help with this?
Thanks,
Nathan.

Mini Display Port to VGA Adapter Having Issues with My Samsung 40" HDTV

So I ordered the brand new 15" i7 Macbook Pro along with the Apple wireless magic mouse and wireless keyboard after having bought my HDTV (went on a bit of a spree) with the intention of using the TV as a monitor for couch surfing. But, upon hooking up the adapter to the TV, my macbook's screen flickered between that blue transitionary screen and it's desktop screen. It did this for a few minutes. I jiggled the cable thinking that there was a loose connection somewhere as that was the problem with my previous mini DVI to VGA adapter from Apple. I did a little research and it turns out that they released a firmware update in 2009 for such a problem. I downloaded the update and attempted to install it but it did not determine that there was even an adapter connected. So, I proceeded to call Apple, they man was very calming to talk to and make all of my problems seem to melt away, but there were no solutions reached. He thought that maybe my TV either had a problem or was incompatible with the adapter (incompatible with a VGA connection? can you get any more analoge that that?). So, here I am, the adapter seems not to have a problem with regular monitors but I am still experiencing intermittent disconnects from my TV. I still, superstitiously jiggle the connection whenever I have dropouts but that really doesn't seem to be the issue here (or at least I hope not because that could mean port issues with my new laptop). Any suggestions? I noticed, after changing some settings on my TV, in an attempt to remedy this, that the TV was displaying the picture funny, I turned the TV off and then on again and it fixed the problem. That being said, perhaps I just need to turn my TV completely off when I'm not using it, as I have been just letting it go into standby. Maybe it needs a restart every so often much like my computer. I don't currently have data to support that theory as I just recently tried turning it off, but, since then have not had dropouts.

You may have the screen refresh rate set higher than the TV is generally able to track reliably. It may be able to get there most times, but occasionally loses sync because it is out of its nominal range.
I suggest you sit down with the manual for the TV and find out what resolutions at what refresh rates it intends to support through VGA, and make sure your screen settings are near (or below) those limits.

Macbook Pro VGA adapter resolution issue

I have an Optoma projector that has been connected to my Lenovo laptop for the last 2 years. I have just decided to set my mac up to it, and had a mini display port to VGA adapter. The native resolution of my projector is 1280x800, yet when I plug in the mac, I can only get 800x600. If I change it to optimize for the built-in display, I get a scaled image of 1280x800 on what is really 800x600. This has been extremely frustrating and my searches on the web have proven unsuccessful. I have tried the PRAM/NVRAM restart where you hold Option, Command, P + R, and it has not resolved the issue. How can I display the correct resolution, which is exactly the same as the Macbook itself??

Upon more research, I have learned that holding down the "option" key while clicking Scaled in the Display Properties will allow you more resolutions to choose from. I now have the option of 1280x720, 1280x768 or 1280x960, but still not the true resolution which is 1280x800!! How ridiculous! Why can't the MacBook determine the resolution of the projector and use it to its maximum potential the way Windows did?

VGA to HDMI issue with Toshiba TV

Hi,
I'm having issues connecting an old powerbook G4 running 10.4.11 into a Toshiba TV. I have a DVI to VGA converter from the laptop connected to a VGA to HDMI cable running to the TV's HDMI input. The laptop recognises the television in the display settings but is giving me a blue screen. I've tried restarting, and re plugging in the cables and it just won't work.
Any advice would be greatly appreciated!
Thanks

You need a DVI to HDMI converter or cable. HDMI uses digital video, which is lost when you go to VGA.

MAYBE an answer to Thunderbolt issues with 4G ?

I posted this in another thread, but it might be interesting in it's own thread:
It IS a problem, but NOT every Thunderbolt has this issue.    Mine did.   It was 100% stock, not rooted or anything.   After the update, it started rebooting on its own.   I tried the remove battery trick, didn't help.   Removed new applications since the update, didn't help.    Did the factory data reset....and it's been perfect since relative to reboots.
I do still get the phone showing 4G service but no data connect, and no fall back to 3G until I get out of the 4G area.    I may have found a fix for that too... Hasn't been long enought to really test this out...but using the suggested ##778 (EPST edit mode) and I set the Preferred Mode to CDMA HDR and the Preferred Mode (9k) to HDR LTE mode.    Prefered had been at CDMA and preferred 9K had been at LTE only.
For the rest of yesterday....that seem to help A LOT.    But once I left work, I'm out of the 4G area, so hard to tell if it really helped or if it was just a quirk.    3G is fine, as it always has been.
As usual, your mileage may vary, don't forget to COMMIT the modfications and always...ALWAYS write down what the original settings are before you change anything!

vx1 wrote:
Holy cow. This is flippin' scary. I'm at work and just made the changes you suggested. This thing has a stable 2 bars of 4G inside the building in my office. It seems to be real too, because web pages load quickly and email works every time. As a point of comparison, just 10 minutes ago before the config change, I was getting the normal random 3G/1X shuffles and complete dropouts, and never got a 4G connection in here. I will have to keep an eye on this to see if it holds, but this is the only thing the has made any sort of difference so far. Fingers crossed!
BTW, how did you know about this?
I didn't "know" about it, just made sense to me to try it.
It may have been the reboot of the phone that made the difference.   I do know if you've got crummy connections, rebooting does seem to help.    But hopefully, this change makes things a bit better.
So far, it is 'better' but not "good' with my phone, but I'm in a fringe area for 4G.
Oh yea...the bars you see for reception are for phone, not data (at least that's my understanding), especially for 4G since it uses a totally different radio in the phone for 4G reception.

Toshiba vga output to lg vga input flashing issue

I did a vga output from my toshiba satellite L355D-S7901 to my LG tv and it works fine for the most part, but I have periodic flashing on the tv when I'm watching video or anything else. How can I correct this issue?

Welcome to the forum.
I'm responding to this because no one else has so far, not because I have experience with what you want to do in connecting a T61 to a TV.
First, yes a T61 can play downloaded videos. If for some reason you have problems with playing specific videos I'd suggest you install VLC media player for Windows. This software can play virtually all audio and video formats. It's never let me down.
Now as to connecting the T61 to a TV, there are adapters that go from a USB port on the T61 to an HDMI port on the TV. Here's one example, IMAGE Lenkeng LKV325 USB to HDMI Adapter Converter with 3.5mm Audio Cable. You can buy similar adapters at Best Buy etc. so you might want to bring your T61 to the store and make sure the adapter works before you buy it. In particular you will need to ensure that you have a 3.5mm audio input on your TV (or AV receiver, etc.) If not you'll have to rely on the built-in speaker in the T61 which may not be ideal.
You will also need standard HDMI and 3.5mm audio cables to go from the adapter to the TV. These are available in many lengths, e.g. 3', 6', 10' etc.
Cheers... Dorian Hausman
X1C2, TPT2, T430s, SL500, X61s, T60p, A21p, 770, 760ED... 5160, 5150... S360/30

Firewire thunderbolt issues

So I'm trying to connect a PreSonus StudioLive AI to a 27 inch late 2013 iMac running 10.9.5. There have been people on the forums at PreSonus that say it that there is an issue with Mavericks. I've also seen a press release from PreSonus saying that they worked with the Firewire to Thunderbolt converters. The problem is that the system sees the converter but does not see the board. I have installed the recommended drivers and such.
The weird part is that it actually connects for a moment and I can use the software, but in less than 5 minutes, it will freeze and crash.
I can upload the saved system profile if necessary (just couldn't find an upload link/button).
Thanks for any and all assistance, this is driving me CRAZY!!!!!
Tyler

We would have no idea, my suggestion is to contact the developers of the PreSonus StudioLive and see if they support the device in
OS X Mavericks
via FW to Thunderbolt cable.
Good luck.

Just got iMac 21.5 can't get image on Apple Cinema HD display - is it thunderbolt issue?

I just got my new iMac 21.5" desktop and tried to connect my 21" Apple cinema HD display. I have power to the external display but no image - screen blank. I'm wondering if it is a cable issue even though the adapter I used to connect this monitor to my MacBook Pro fit the thunderbolt port - is this a port or adapter issue?

In continuing my research on this topic, I found this article:
http://support.apple.com/kb/TS5198
Short version, the 23" Cinema HD is among one of several older "vintage" Apple displays that are no longer supported under Mavericks. No brightness control, and it's likely to not work reliably at all. I can't say why I was able to use it for as long as I did with no problems. I take all this to mean that the display itself works fine, but not with my new MBP Retina.
Though a tempting excuse to spend another grand on a 27" Apple Thunderbolt display, I opted for a $250 HDMI monitor from Fry's instead.

Thunderbolt Issues

After reading all the forums and complaints about the HTC Thunderbolt, I feel very fortunate. I've had my phone about a month and haven't had any major issues. I love the Thunderbolt and am glad the Verizon representative sold it to me instead of the iPhone.
Granted I don't use a lot of apps but the ones that I do use work well. It's a piece of technology; be smarter than it.
My only complaint is that I miss the thunderclouds that used to appear whenever the smart phone is either turned on or restarted. Can we get them back with the next software update?

same with my dx, no issues after gb update. it's nice when things work right.

VGA to thunderbolt issues

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