No HDMI or MiniDP-to-VGA output, but HDMI-to-DVI is okay

I purchased my Mac Mini almost a week ago and I've been having strange issues with getting my various monitors to work with it.
I don't own any Thunderbolt or native MiniDisplayPort monitors, however I do have a number of VGA monitors, as well as some HP LP2475w monitors which have VGA, DVI (DVI-D and DVI-A), HDMI, and DisplayPort inputs.
When I have OS X installed on my Mac Mini, the Apple MiniDP-to-VGA adapter works with my VGA monitors, but only when OS X has loaded. My monitors all say "no signal" during the boot-up phase. However I had no problems when I connect my LP2475w monitors to the Mac Mini via the HDMI-to-DVI adapter: I see the grey screen during bootup, can see/access the boot menu, and everything works fine.
Today I purchased a HDMI cable to connect the Mac Mini to my LP2475w monitors to see if that would work. Well, it does work... almost, sometimes, but not most of the time.
When I use a direct HDMI connection my LP2475w says there's no signal, unless I plug the cable in during the text-mode portion of Windows' bootloader (under Boot Camp). As soon as Windows loads, or during the grey-screen bootup section my monitors all say there's no signal. There is nothing wrong with the cable or my monitors.
Here's a table:
Connection
Can see boot screen/boot menu
Can see OS X (when loaded)
Can see Windows (when loaded)
HDMI from Mac Mini to LP2475w
No
Not tested
No
HDMI-to-DVI from Mac Mini to LP2475w
Yes
Yes
Yes
MiniDP-to-VGA from Mac Mini to VGA monitor
No
Yes
No
So what's going on here then?
Has anyone else had the same problems as me?

SOLVED - I purchased a third-party MiniDP to DVI adapter instead and it works a treat.
Quite what the difference can be to a supposedly passive adapter I'm unsure - but glad it's fixed anyhow.

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Satellite A210 (PSAELE) - VGA output not working

Hello everybody,
i've got an A200 PSAELE and I am trying to connect it to an external Monitor via VGA.
The external Monitor is a Medion 19" Widescreen with a Resolution of 1440x900.
The problem is, that I am not able to get the external display to work.
I just get a "no signal" message on my external monitor.
I tried various things, tried another VGA cable, another monitor (Benq FP93G X) and another driver.
I am using Windows 7 Beta ans also tried to get it to work using Windows Vista Home Premium & Windows XP.
In the "resolution settings", I tried using the "recognize displays" button.
When i use it, there is a second image of a display displayed like a box.
In this box, there is the following text: "Antoher display couldn't be recognized".
Regardless of the settings I use (clone, span, ...) I can't get any image onto my second screen.
I tried changing some BIOS-Settings without success and made a BIOS-Upadte to Version 2.00, same problem.
I also tried switching to the external monitor via "Fn + F5", but nothing happens onto the second screen.
Can anyone help me?
Thanks in advance,
StarGeneral
Message was edited by: StarGeneral

Hi,
I tested two more things:
-> I downgraded to the Toshiba Windows Vista Home Premium 32bit drive, which works on Windows 7 as well. There in the Catalyst Control Center I've got the "Displays Manager" section, which I don't have with the release drivers.
But even there, when I click on "dectect displays", nothing happens.
When I press the Windows-key and "P", a display opens, where I can select how to use the external VGA out, but when I e.g. select "clone", the resolution on the laptop-screen changes, but there still is no signal on the external monitor.
-> I tested the laptop with a real CRT analog monitor, but I didn't get any further.
But I have got the sneaking suspicion, that I've got a conflict with the HDMI / VGA version of the A210 laptop.
I know that there are a few laptops with an HDMI output and a few with a VGA output.
I checked my audi-devices and found an entry named "HDMI-Audio-Out".
Isn't that strange, because my laptop doesn't have HDMI connector?
Probably I've got a Mainboard/Graphics-card combo, which has got a HDMI port and no VGA output and which was designed for a HDMI-A210?
Could something like this be possible?
Thanks in advance,
StarGeneral

No Native Res with DVI/HDMI but OK with DVI/VGA cable on Loewe 32" LCD

Hi there, I am a little confused about connecting my mini to my Loewe Individual LCD TV and coudl do with some help.
I purchased a DVI to HDMI cable at enormous cost because my experience of DVI versus VGA is like night and day and I wanted to have the best possible connection to my HD TV.
The problem is that when I connect the mini with the DVI/HDMI cable the native resolution of my TV is not available. (1366x768 or thereabouts) The only resolutions to choose from are 1920 x 1080? and 1024 X 768. Using overscan on the 1024 fills the screen correctly but looks all stretched.
Instead I connected with a VGA cable and the correct resolution is automatically detected immediately and there is no problem at all.
I am a little bit confused as to why it works fine with VGA but not with DVI/HDMI. The VGA connection looks OK but why compromise when you shoudln't have to?

First of all, I am far from an expert but as I said, from my experience and after reading a LOT, HDMI cannot support 1366x768, that is why the TV goes without picture if you try. Why? I don't know.
Now, DVI is almost like VGA, both are analog, and can support 1366x768 or 1920x1200. But since you go from DVI output from the Mac Mini to the HDMI cable, screen goes black, blue, etc, res no supported.
That is why some people don't have problems with the powerbook and their HDTV's, and then they try with the DVI-HDMI adaptor (normally with the mac mini) and it's no good.
The thing is, you can get 720p, 1280x720 but with overscan, so with DisplayconfigX you go from:
1280x720 (720p)
128 Front Porch 10
80 Sync 5
200 Back Porch 15
1688 Total 750
to
1240x680
128 Front Porch 19
80 Sync 5
240 Back Porch 38
1688 Total 750
for example, with this setup you get the image cut to a minimum.
As you can see the totals are in both cases 1688 750. As soon as you don't respect this totals, like in this example:
1366x768
28 Front Porch 5
80 Sync 5
40 Back Porch 15
1514 Total 793
your TV won't be able to dispay the image. But with VGA the totals don't matter!!!!, that is why it works with one cable and not with the other.
Apple should update the Intel graphic card drivers, maybe that would help.
Bye
Mac Mini Mac OS X (10.4.5)

ATV3: no hdmi output but sound from optical is working

Hello,
I've ATV3 and connected to HD ready Samsung LCD. I'm getting 720p video since the LCD is HD ready and have no issue. Plus my ATV3 is connected to optical home theater DVD system.
I started getting a frequent issue with HDMI signal where there is no output but sound is still working from the optical output. The issue happens even on the main ATV3 menu not only when I play video!
Any suggestions?
Thanks,

Check that the HDMI cable is correctly seated at both ends.
Try disconnecting the cable and connecting it again.
Try another HDMI cable.
Try the Apple TV with another TV

VGA output signal is present but my VGA monitor won't display it --- why?

When I connect the iPad to a Samsung SyncMaster 570STFT display (with the Apple iPad Dock Connector to VGA Adapter) and try to play a movie, the audio plays and the image on the iPad is not updated (which I would expect, since it's supposed to be playing on the external VGA), but the monitor reports "Video mode not supported" (which is what it says when the display resolution is out of range).
I've verified that the monitor works fine at iPad resolution (by plugging it into a Mac Mini and confirming that it is operating at 1024x768).
Is there something unusual about the iPad's VGA output that is incompatible with some displays? Has anybody else run into this problem?

Scan rate and frame rate are different item. VGA is analogue and is based on CRT in which the electron gun scan the phosphors on the screen. Frame rate, as you seem to know, is how many screens there are per second.
If you look at the properties of your video what does it say. Does it play on your iPad?
The tech specs for the iPad say the following. Note that it says:
"640 by 480 pixels" for MPEG-4
TV and video
Support for 1024 by 768 pixels with Dock Connector to VGA Adapter; 576p and 480p with Apple Component AV Cable; 576i and 480i with Apple Composite AV Cable
H.264 video up to 720p, 30 frames per second, Main Profile level 3.1 with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format

Just connected apple tv. Everything works perfectly but the screen is not in color. I have tried reversing the HDMI cable and changing the output in settings and restarting. Any ideas of how to fix this?

Just connected apple tv. Everything works perfectly but the screen is not in color. I have tried reversing the HDMI cable and changing the output in settings and restarting. The screen is still black and white. Any ideas of how to fix this?

Hi im,
Thanks for using Apple Support Communities. This article has a few troubleshooting ideas for issues with color on your TV when using Apple TV:
Apple TV (2nd and 3rd generation): Troubleshooting video issues
http://support.apple.com/kb/TS5148
Cheers,
- Ari

HDMI and VGA output adaptors?

i have sony series laptop with HDMI and VGA outputs are there any adabtors to use this display?

AppleTV is not a display, it plays media to an HDMI equipped TV.

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 to get screen content onto external VGA screen? Do have thunderbolt-VGA adapter but only get screensaver across

how to get screen content onto external VGA screen? Do have thunderbolt-VGA adapter but only get screensaver across

VGA and DVI do not carry sound. Only HDMI.
Use a minidisplay-to-HDMI adapter. Then when the TV is connected to the system use "System Prefences > Sound > Output" to select the TV for sound.
Or connect speakers to the output port of the MBP.

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.
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X1C2, TPT2, T430s, SL500, X61s, T60p, A21p, 770, 760ED... 5160, 5150... S360/30

HP probook 6450b running windows 8 display port to HDMI doesn't give any output

Hi,
My laptop HP probook 6450b running windows 8, display port to HDMI doesn't give any output. I gave windows+P and tried selecting duplicate/extend but no output. I even tried to change the DP to HDMI converter and the HDMI cable as well but no luck. Any help would be much appreciated.

Dear Customer,
Welcome and Thank you for posting your query on HP Support Forum
It looks like you are using the Display Port on the Notebook get HDMI Ouput for better Audio and Video
We will surely assist you with this issue
Firstly I would like to keep you informed that the Display Port supports resolutions up to 2560 x 1600, 30-bit color depth at 60 Hz, and full HD (1920 x 1080) monitors, 24-bit color depth at 120 Hz
NOTE: Resolutions are dependent upon monitor capability, and resolution and color depth settings.
Please use an HP DisplayPort to HDMI Adapter for this setup. Please make sure that you are using HP Cable/Converter with the Product Number BP937AA.
1. Please let me know if you have additional graphics card installed on your Notebook
2. You can try download and installing the latest BIOS Update for your Notebook from the HP Website
3. Make sure VGA Port on the Notebook is not in use when you are testing the Display Port
Hope this helps, for any further queries reply to the post and feel free to join us again
**Click the KUDOS star on left to say Thanks**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.
Thank You,
K N R K
Although I am an HP employee, I am speaking for myself and not for HP

Satellite L300 1BD - VGA output is not working

Hello.
I have a Toshiba Satellite L300 1BD (Model PSLB8E). I was usinng the VGA output to connect to my LG tv. It worked fine until last week. All of a sudden the TV doesn't get reckognized by the laptop anymore. The TV says that no external device is connected. I have tried different things: starting up with the TV connected and not connected through the VGA cable, pressing the FN+F5 button, removing the battery and pressing the powerbutton, checked for the latest videodriver, removed the existing driver and installed it again...unfortunately without any result. I also tried to hook the TV up with a different VGA cable, but no result. It's not the TV, because i did try to hook the laptop up to a TFT monitor and it didn't work as well. Tested the VGA cable with my friends laptop: it works perfect.
The strange thing is: if i hook the TV up to the laptop, i can hear the laptop is making the 'new hardware detected' sound and the laptopscreen even turns black for a second, then everything appears back on the laptopscreen. If i check the graphic properties with the rightclick on my desktop, i can see that they are no set for 'clone device'. As if the laptop knows, something is connected, but just can't transfer the image to the TV screen.
The graphic adapter is a Mobile Intel 4 Series Express Chipset family.
The OS is Vista Home Basic (32).
It's a shame the VGA output seems to be out of order since i watch tons of video's and movies through my laptop on the TV screen. I don't know if this could be a software or a hardware malfunction. If anyone has an idea or some clue, please let me know. Thanks in advance!
Marcin.

Hi,
I would like to give my 2 cents to this post (and the answers from Toshiba):
>{quote}I have a Toshiba Satellite L300 1BD (Model PSLB8E). I was usinng the VGA output to connect to my LG tv. It worked fine until last week. All of a sudden the TV doesn't get reckognized by the laptop anymore. The TV says that no external device is connected. I have tried different things: starting up with the TV connected and not connected through the VGA cable, pressing the FN+F5 button, removing the battery and pressing the powerbutton, checked for the latest videodriver, removed the existing driver and installed it again...unfortunately without any result. I also tried to hook the TV up with a different VGA cable, but no result. It's not the TV, because i did try to hook the laptop up to a TFT monitor and it didn't work as well. Tested the VGA cable with my friends laptop: it works perfect. {quote}
> {quote}The strange thing is: if i hook the TV up to the laptop, i can hear the laptop is making the 'new hardware detected' sound and the laptopscreen even turns black for a second, then everything appears back on the laptopscreen. If i check the graphic properties with the rightclick on my desktop, i can see that they are no set for 'clone device'. As if the laptop knows, something is connected, but just can't transfer the image to the TV screen. {quote}
>{quote}The graphic adapter is a Mobile Intel 4 Series Express Chipset family.{quote}
>{quote}The OS is Vista Home Basic (32). {quote}
>{quote}It's a shame the VGA output seems to be out of order since i watch tons of video's and movies through my laptop on the TV screen. I don't know if this could be a software or a hardware malfunction. If anyone has an idea or some clue, please let me know. Thanks in advance! {quote}
I have exactly the same L300 19F with the same graphic adapter, only with Windows 7 Ultimate (32) and was watching DVD's through my Toshiba TFT TV-set/VGA Monitor for a couple of years as well as all of a sudden it doesn't work anymore. The same as the gentleman who started this thread I checked everything there is to check: my laptop/another screen, another laptop/my screen, drivers, new cable, even installed the (original and licensed) W7 OS again etc. etc. etc. TO NO AVAIL !!!
Since this is the first time that I can't solve a technical computer problem in more then 25 years I got mad and started to think what the heck I did different over the last few weeks, and now I think I know the culprit.
One day, a few months ago, I saw a warning in my screen to flash my BIOS with a new upgrade from the Toshiba website. Having seen that message for several months I did not give it much attention because everything worked fine, and the reason given for the update was a quote "password protection update" unquote, a function I don't use anyway and that's why I didn't run that fast.
After a while I decided to flash the BIOS, just to get rid of the annoying message and now I am quite sure that it really did kill my VGA output capabilities.
So, instead of the nice "Check your Power Cord" and "Go to the Official Toshiba Dealership" hints, maybe there is some technical solution. Maybe there might even be a nice technical Toshiba person have a look into the BIOS update and what the heck the differences are with the old one.
At the very least you could offer a "downdate" of the current valid BIOS for this type, because everything used to work pretty good and, as a 25 year long time customer of Toshiba laptops, I could be entitled to a little better (quality) answer.......
My friend Marcinondrums and I still have hopes.
Thank you !!
/Hans

How can I do live streaming with a Mac Book Pro 2011, using a new model of Sony HD camcorder which does not have firewire out/input? it comes only with a component video output, USB, HDMI and composite RCA output?

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Help with sound output via HDMI

My sound output via HDMI suddenly stopped worked to my TV set. I've reset the PRAM and the SMC. When I go to sound control panel for sound output, the setting is on Headphones. When I try to change it to SV420XVT1A (the tv) it immediately jumps back to headphone. I also tried a different HDMI cable to a different HDMI port on the tv. This just started after the Mac Mini had been turned off for a week. I'm using Lion and it's an 8GB Intel Core 2 Duo. Any suggestions?

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Tearing on VGA output, LVDS OK on 950GMA with xf86-video-intel-2.6.10

I'm crossposting this message i sent on intel-graphics ml and xorg bugzilla, because maybe some of you can point me to a solution.
i own an asus eeepc1005ha, it uses intel gma 950.
Playing a video on the internal LVDS panel is very pleasing and tear
free, but as soon as i connect the vga output, i can notice tearing or
flickering on the picture.
I tried all possible configurations:
-Booting with the lid open (tty on LVDS) and then switching to xorg
with a VGA only output. (VGA tears)
-Booting with the lid closed (tty on VGA) and using xorg on VGA. (VGA tears)
-VGA+LVDS in clone mode (VGA and LVDS tears)
-VGA+LVDS in multihead mode (expanded desktop) (VGA and LVDS tears)
Using xv adaptor via mplayer results in a different tear effect, seems
more like a flickering, while the GL output definitely tears.
I couldn't try overlay adaptor because i don't have a 2.6.33 kernel yet
(believe it or not, i've seen overlay tearing too with an old intel
driver in the past, i think 2.7.1, in a cloned mode if lvds was at
60hz, while vga was at 70hz)
I'm using xf86-video-intel 2.10.0 and kernel 2.6.32.9
I used the framerate test videos available here:
http://spng.se/frame-rate-test/
Thanks for reading.
Last edited by kokoko3k (2010-03-07 08:23:48)

You're right, here's the references:
http://lists.freedesktop.org/archives/i … 06092.html
http://bugs.freedesktop.org/show_bug.cgi?id=26925
About your command, i'll try, but what it does is just picking the first port from first adaptor, right?
By now (xf86-video-intel 2.10.0 and kernel 2.6.32.9), we just have a single adaptor, the textured one;
why the first port should make a difference?
Maybe with your setup the overlay adaptor was picked, and in 99% of the cases that would certanly help.
As a side note, newer mplayer versions comes with an useful option: -vo xv:adaptor=#
What i think is that vblank interrupts generation is (and was) messed up in the drivers code.
see:
(believe it or not, i've seen overlay tearing too with an old intel
driver in the past, i think 2.7.1, in a cloned mode if lvds was at
60hz, while vga was at 70hz)

No HDMI or MiniDP-to-VGA output, but HDMI-to-DVI is okay

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