Mini DisplayPort to HDTV problem

I'm trying to connect my MPB (2.66GHz, i7) to a Westinghouse TV (VT-3225). The TV has both VGA and HDMI connectors. I tried several adapters. DisplayPort to HDMI gets me nowhere - the screen is not even recognized.  The closest I get is using a DisplayPort to DVI connector, then a DVI to VGA cable. This gets the MPB to recognize the TV as a second monitor but I see no display.
A call to Westinghouse suggested I set the refresh rate to 60Hz, but I do not see any refresh rate settings in my Display Preferences, only resolutions.
I know the TV works since I can connect the same VGA-DVI cable to my old MPB (which has a DVI connector) and it works perfectly.
Any thoughts on where I can find the refresh rate settings, or why the HDMI connection doesn't even recognize the screen?
I'm still using Snow Leopard. Is there a chance that upgrading to Lion may work better (newer video drivers?). I resisted doing it so far since I have several devices that require Rosetta to work.
Thanks,
Guy

Some TVs will only display an image if they are receiving both the audio and video signals. I haven't tried this on a newer MBP (which is supposed to be able to output both audio and video together from the same port), but it would be interesting to connect the MBP to HDMI to an input on the TV which allows separate HDMI and audio input, and then use the audio out port on the MBP to run 3.5mm mini plug to RCA or optical/Toslink to the corresponding audio input on the TV and see if that works. That would at least tell you if the video was getting through, and be a workaround for both audio and video. Just a thought.

Similar Messages

  • Mini DisplayPort to VGA problem

    Hi, all!
    My New MacBook can't work with external display with resolution more then 1360x768 using Mini DisplayPort to VGA connector.
    Then I'm setting bigger resolution (for ex. 1920x1080) display shows me picture for a 2-3 seconds, then switches off, and on again.
    Tested 3 monitors and one tv.
    Any suggestions?

    Hello
    I have this Problem too, my monitor best resolution is 1680 X 1050 but I can not set it, i have only 1600*1200 or 1440*1050, what can I to do?
    but i don't have this problem with my MacBook Pro 10.6.4, I have best resolution 1680*1050
    Emad Falsafi
    Message was edited by: Emad Falsafi

  • Mini Displayport DVI Adapter Problem

    I'm currently having issues with my MacBook Pro's DVI out (via Apple Mini-Displayport Adapter). Whenever my displays go to sleep (which is set after an hour) and wakes up, sometimes the external display (a SyncMaster 220WM) shows "snow" or "static" ... basically what you'd see if a TV station had no reception. If I let it sit for a minute, the second display will return (the MBP's primary display is fine, no errors of any kind). If I power off the Samsung display, the MBP treats the connection as if I pulled the cable out and reverts to a single screen setup. I have been able to reproduce this by using "Hot Corners" to sleep and wake up the displays. I'm using the 9600m GT as the computer is my desktop replacement. I never had this happen to me before with my older MBP with an 8600m GT using the same DVI cable and display. I think it's the mini-displayport adapter. Is this a common issue. Anyone else having these problems.
    Thank you!

    I have been experiencing the same flickering problem when using the mini Displayport output on the GT120 to drive secondary monitors at my office. Using a Monoprice cable instead of Apple's adapter provides a more stable signal, but we still get intermittent flickering where the screen goes black for a second, then a full image returns. I think this issue is due to massive loss of signal strength via the mini Displayport output on the GT120 card. Hot Plug Detect is also weak which points to low signal strength. This might be fixable by increasing the output voltage of the card slightly to boost the signal strength. Apple really should just issue a firmware/BIOS fix for this problem since the implementation of mini Displayport on these cards seems poorly engineered. Does anyone know how to do this?

  • Macbook Pro Mini Displayport to HDMI problem Please Help!

    I just bought a new Macbook Pro Core i7 15" and have it connected to a [URL="http://www.amazon.com/Samsung-P2370HD-23-Inch-1080p-Monitor/dp/B002DHS398 "]Samsung P2370HD[/URL] via a [URL="http://www.kanexlive.com/products/item-id-3689.html"]Kanex Mini Displayport to HDMI cable[/URL]. I'm running Snow Leopard 10.6.3 and have the resolution @ 1080p via system preferences and the "underscan" feathered a bit... (which I do not understand why I have to do this since I'm outputting at 1080p and the monitor accepts full 1080p as well. Can someone explain this?) however, small text is grainy, some larger bold text has a white wash behind it. Most things seem to have a slight blur as if there is a screen zoom happening just slightly. [URL="http://www.mac-forums.com/forums/apple-desktops/181687-mac-pro-samsung-ln 40b530-display.html"]As described in this similar post I found.[/URL]
    My old setup was a late 2007 Macbook Pro 15" 10.6.3 connected to the same monitor I have now via Dual-Link DVI and it was crystal clear... It's hard to believe that the issue lies with Samsung, I've tried the same setup on my Sony Bravia in the living room, being that it's a much larger tv...I can't notice the artifacts as much but they are still present. Something is off.
    My only other option I feel is to try a Mini Displayport to Dual-Link DVI but I chose the HDMI route for it's standardization and when I go to meetings/projections it's convenient to have one cable. Yes, I've checked cables, restarted everything ect... Can anyone help me troubleshoot this?
    Thanks in advance!

    Switched to a Mini Displayport to DVI cable and it works flawlessly. Still no idea, why the hdmi cable does not work properly.

  • Mac Mini DVi on HDTV - PROBLEM

    hey all,
    i am using a mac mini (1.42 G4 80gb 512 combo) on a sharp HDTV using a DVI to HDMI cable.
    everything works but i have a problem that it is slightly blurred, this makes text (especially small fonts) very difficult to read.
    is there any way to alter this or at least improve the visual quality?
    thanks anyone who can suggest.
    Dan Harris
    Nerox9

    i am using 1280 x 720 resolution, the other resolutions have the same blurred problem but it makes all the icons and stuff bigger.
    The tv / monitor is 26 inches.
    thanks

  • Mini Displayport to VGA problem - not recognizing

    Hi all,
    First, thanks for your patience as I am new to these forums and thanks for reading and hopefully helping.
    We purchased an apple branded mini DP to VGA adapter about a week ago from an auth. reseller in Prague (US expats). We are using the adapter to watch video from our MacBook Pro on an Epson projector. Everything worked great for about a week and all of a sudden (truly, no software changes, updates, dropped adapters, etc. etc. etc.) it stopped working. By "it" I think I mean the mini DP adapter or the plug itself. The reason I think this is b/c the computer doesn't even recognize when the adapter is plugged in; previously, when plugging ONLY the adapter into the mini DP plug, the screen would flash blue, now - nothing.
    I have reset PRAM and the SMC and still no change. I checked when I first purchased the adapter and found that the firmware was indeed up to date.
    Any ideas? Hoping for insight before having to deal with the extraordinary language barrier.
    Thanks again.

    Hello
    I have this Problem too, my monitor best resolution is 1680 X 1050 but I can not set it, i have only 1600*1200 or 1440*1050, what can I to do?
    but i don't have this problem with my MacBook Pro 10.6.4, I have best resolution 1680*1050
    Emad Falsafi
    Message was edited by: Emad Falsafi

  • Mini-DVI- Svideo- HDTV problem

    I have a mid-2007 iMac and I'm attempting to connect it to my 2005 model Panasonic plasma TV to mirror my desktop.  I'm using a Dynex mini-DVI to s-video adapter and have have not yet been able to view my Mac desktop on my tv.  I've tried various methods to get my Mac to recognize the tv, powering both off, one on one off, etc. but no luck so far.  I'd appreciate any recommendations.  Thanks.

    I only need to temporarily connect my Mac to the TV for a fantasy football draft this Friday.  I decided to go with s-video because the 15-20 foot cable I needed was cheaper than HDMI.  I'm contemplating overnighting an Apple branded adapter instead.  Would that be better than the off brand?  Also, I've tried connecting the s-video directly to the tv and to my home theater receiver that feeds video to my tv and neither setup is detected.

  • MBP to HDTV won't work - mini displayport to dvi - belkin dvi to hdmi

    Hey, I'm trying to get my laptop hooked up to my tv, using the apple mini displayport to DVI -> belkin DVI to HDMI cable setup (as recommended by the dude int eh apple store - which i knew and planned on doing anyway :P).
    anyway, when i first plugged it in to the tv in my hotel room it worked, 1080p, then stopped .. then randomly worked again after a few ties. Once I got home i hooked it up to my sharp aquos 42 and worked fine, then after it was unplugged and tried to get it working again, it basically just.. wouldn't - i don't get a picture/signal on the tv, no options in the display cp , nor does the screen go blue when it normally finds a monitor/tv. i've tried plugging it in both ends, restarting, turning tv off/on, everything to no avail. I know the dvi-hdmi cable works, used it from a windows desktop to make sure. the mini displayport to DVI works for DVI 100% of the time into one of my monitors.
    as mentioned it had worked at first on and off..., and now i cant get it working on my 1080p tv, nor the 720p one that's in my room, neither of them get a picture/signal; no options in display control panel either, or the quick display flash to blue. Furthermore, sometimes when unplugging the dvi cable from the tv i get the laptop screen flash, as when it picks the device up initially.
    I never got my emailed invoice from apple when I bought the cables in in SF during macworld so I cant just return it to apple I'm sure.
    any ideas would be greatly appreciated, please help this is making me go crazy... worked and now nothing no matter what i try. Oh, also tried on another, new user to see if it was a weird setting that got saved.
    mbp running 10.6.2

    I have the same mini display port adapter and Belkin DVI-HDMI cable (but a Panasonic 42" Plasma HDTV) so just set this up on it to see if I could duplicate your problem, unfortunately for you (but good for me) I can't.
    I connected the adapter+HDMI cable before switching the HDTV on and then powered up the MBP. It (the HDTV) came up with my background right away (it's set at Mirror not extended Desktop) and when I run System Preferences/Displays get the following. Sorry but all I can confirm is that adapter+cable combination should work ...
    Try doing a Parameter RAM reset - hold down command/option/p/r keys at start up and wait for three chimes before releasing the keys?

  • Connect Mid-2009 Macbook Pro to HDTV via Mini Displayport to HDMI adapter

    Hello,
    I'm trying to connect my Mac to my HDTV via a Mini Displayport to HDMI converter I bought at the Apple Store. I have tried on three different HDTVs, none of which allow me to output video. I have tried adjusting the resolution to every available resolution under system preferences. Any advice as to how to resolve this problem would be very much appreciated.
    Thank you,
    Jordan

    I'm having the same problem, also with a 2009 13" MBP and a Mini DisplayPort to HDMI adapter.  Does anyone out there have a solution?  Do we need a different kind of adapter?  My tv is a Samsung 720p.  My boyfriend can connect his PC laptop with an HDMI cable with no issues.

  • Mini DisplayPort to VGA Adapter problems

    I connected my Apple Pro to my HD TV to watch streamed movies on my computer using the TV as a monitor. I was advised to purchase a Mini DisplayPort to VGA Adapter and all the connections fit. The first time I connected it was no problem. I watched the movie and the audio was fine. Then the 2nd time I connected I had no screen. It was a blue wavy screen on the TV, even though the computer screen was showing the show. I believe it may have been showing me some sort of screensaver application from what i've read on the forums but I have no idea why or how. Then the next day I tried again. The screen was fine but the audio quality was terrible. It was like listening through a cheap radio. Why am I having so many problems and the quality is not consistent. Are there settings I should change when I do this?

    I have some good news.
    Regarding the broken lines on the output of the Mini DisplayPort, it seems as though it "fixed" itself. My theory is, I recently installed Windows 7. Updated all the drivers on the windows side and got it to project properly with the new Intel 4000 graphic cards. Once that happened, it kind of "popped the cherry" on the port and now both Mac and Windows output properly through the Mini DisplayPort.
    I've tested it with numerous adapters and once it outputed properly for the first time ever, all subsequent times work.
    I now have tested in on LCD and DLP projectors, Philips monitors, Skyworth TVs, Sanyo TVs.
    It's working with the Mini DisplayPort - VGA adapter.
    It's also working with the Mini DisplayPort - DVI adapter as well.
    Before I "popped the cherry" on the output port, nothing else worked. 1440x900 didn't work, neither did mirroring the displays. It just had to work once with whatever OS and after that it outputs fine all the time.
    If you ahve the same problem as above, i'd recommend dual booting another OS, load the proper graphix drivers, get it to output properly once and hopefully it'll fix the problem like it did for my unit.
    Thanks for everyone's input with the whole ordeal!
    PS. after the initial output, it didn't matter which adapter I used. I kept the generic since it's cheaper, returned the apple one cuz it's exactly the same, and now bought a generic MiniDP - DVI for my at home workstation.
    PPS. One final picture of it working....

  • Problem w/New MacbookPro, Cinema 30, Mini DisplayPort to Dual-Link DVI Adap

    Hi, I have a new MacBook Pro with Miniport connected to a Cinema 30 using the Mini DisplayPort to Dual-Link DVI Adapter. I upgraded from the previous version of the Macbook Pro w/built-in DVI and never had a problem.
    From the moment I started using this new miniport adapter with the Cinema 30, I noticed intermittent graphic anomalies. Most of the time, discolored lines will start rapidly popping in and out across the screen - especially noticeable with dark backgrounds. Here are a couple of quick videos that visualize the problem.
    Video 1 - http://is.gd/krM6
    Video 2 - http://is.gd/krLT
    I'm also experiencing issues with the cursor randomly jumping across the screen.
    It's isolated to the 30 cinema and the adapter. The Macbook Pro works fine when connected tot he new 24" LED Cinema.
    Any advice on what to do? Is it a faulty adapter? Is there a SW/Firmware upgrade?
    Thank you!
    http://store.apple.com/us/product/MB571Z/A?n=cable_adapter&fnode=MTY1NDA5OQ&mco= MjkyNjI0Mg&s=topSellers
    Message was edited by: bsolis

    I'm having the exact same problem. Have you called Apple and if so, what did they say? I read in a magazine that you can switch to the NVIDIA GeForce 9600M GT graphics processor some how with in our computer. I don't know how or if this may solve the problem.

  • Problem with mini displayport and mini DVI

    Hi,
    My mac mini is connected with the mini-Dvi to my monitor.It works great.
    I would like to connect my mac mini to my TV too.
    I bought 2 adpaters : mini displayport to dvi and mini-Dvi to Video. It does not work. The two screens are black ...
    First i would like to switch the connection : instead of connected my monitor with the mini-DVI port, i would like to connect my monitor with the mini Displayport. I changed the connection but it did not work : the screen is black so i can't do anything ...
    After that i will connect the mini-DVI to my tv ...
    Help me please

    At least two possibilities come to mind. One would be that the adapter you have is bad. Another is that the mini is starting into a resolution not compatible with the monitor. If the problem is the second one, then you can try starting the mini in Safe mode to see if that results in a useable screen. If it does, then set the resolution to the desired resolution and restart normally. The last selection made should persist through normal restart.
    http://support.apple.com/kb/HT1455?viewlocale=fr_FR

  • Resolution problem with Mini DisplayPort to DVI Adapter

    Hi,
    I have a unibody MBP 15', running on 10.5.8. I use 'Mini DisplayPort to DVI Adapter' (http://store.apple.com/us/product/MB570Z/A?fnode=MTY1NDA5OQ&mco=Nzk2MDk5OQ) to connect to my external HP LP3065 30' monitor. I get max resolution of 1280 x 800 for external monitor which supports resolution of 2560 by 1600.
    This monitor used to work fine with old MBPs, but not with my unibody MBP. What could be the problem? Adapter or MBP?
    I am missing high resolutions
    Thanks in advance!
    Rohit

    You have the wrong adapter. The one you have is single-link DVI, which does not support 30" displays. You need the Mini DisplayPort to Dual-Link DVI Adapter:
    http://store.apple.com/us/product/MB571Z/A

  • Mini Displayport to DVI Adapter Problem on Mid-2009 Macbook Pro

    I have a new mid-2009 Macbook Pro hooked up to a 20" Samsung 2033sw LCD with a native 1600x900 resolution using a mini Displayport to DVI adapter that I bought off of EBay. No matter what I've tried I can't get anything to display on the external Samsung LCD higher than 1024x768. I tried switching between GPU's and that made no difference. Any ideas.?

    Michael, thanks for the reply;
    When you open System Preferences/Displays does a second preference panel open up OK on the Samsung ?
    Yes, but I can't see it unless I select 'gather displays'. Then it appears on the MBP LCD, and showing the correct resolution - 1600x900.
    Is there an Options Tab visible under which you can check 'Overscan' ?
    None that I can find. Only display and color tabs.
    Is the Refresh Rate set to 60.0 Hertz
    Yes, that is what it shows in Refresh Rate.
    I also pulled out an older LG LCD that is fairly generic, .e.g. it has DVI in at 1280x1024. Same problem on that LCD ... nothing higher than 1024x768, but this time at 1280x1024 I get major noise and screen distortion. The displayed image is jumping all over the place, but at least there is something displayed.

  • X1 connectivity problem with old VGA beam projector using mini displayport to VGA adaptor.

    Hi all,
    I would like to ask you how to connect this X1 with VGA projector as well.
    actually, X1 has a external interface specification as  mini displayport 1.1a.
    So I bought mini displayport to VGA adapter from MAC store.
    (Actually, Lenovo Korea office doesn’t sell this adapter directly on Korea, even in the future.)
    and try to connect both of LED monitor and beam projector.
    LED monitor was worked as well. but, this adaptor doesn't work with VGA projector. TT
    Please help me how to work this adaptor with projector as well.
    Solved!
    Go to Solution.

    Hi everybody. I was having the same issue here, but I bought a Mac minidisplayport to VGA adapter. It worked on my Monitor but it was not working on my clients VGA beam projectors. But today I figured out a way to make it work, and it is pretty easy; just change your laptop screen resolution.
    When you connect the mini Dport to VGA adapter to the projector VGA receiver cable, just change your laptop screen resolution to 1024x768 (maximum) and the projector will receive the signal with no problem.
    This is the best solution that I found, because is easy to find a Mac/Apple Mini display Port to VGA adapter.
    Hope this works for you too.
    Regards,
    J.

Maybe you are looking for