ATI Radeon 4870 won't detect second display

ATI Radeon 4870 won't detect second display I have a sony that come up as a sdm-hs95p and a asus that i want to connect they both have vga and both have conveters vga to dvi and on the asus it also has a dvi to mini dp because on the graphics card it has dvi and mini dp

You can't use more than one converter per display.
You need to get single converter that connects directly from the Mac port to the display.

Similar Messages

  • Early08 Mac Pro ATI Radeon 4870 Upgrade w/ 24" LED Cinema Display

    I have just received the ATI Radeon 4870 upgrade kit for my early 2008 Mac Pro (dual quad) which permits me to use the new LED Cinema Display (I now have a mini display port). Almost everything works well but find I am unable to manually put the display to sleep. It just seems to freeze and not go dark. Am using OS 10.5.6. I know the card is a new product. Is anyone else having the same problem?
    Thanks,
    Jack

    This information is GOLD! Solid GOLD!
    I have an early-'08 Pro also, and got the HD 4870 this afternoon via FedEx. I tried running a game, and got a "Cannot load 3D acceleration" error message. I noticed that moving windows was choppy, as was switching between Spaces pages. I called AppleCare, and after a loooooooong discussion with some very friendly folks, the tech support guy sent me to the Apple Store support to initiate an exchange.
    I then found this thread, downloaded the beta drivers, and BAM! it works like I hoped it would, blazing fast graphics.
    I called AppleCare back so they'd be aware of it, and while I was on the phone, the guy even followed that link and said, "Wow, what the heck is that site?" He was very happy to have the information.
    Spread the word!
    Of course, then, today, I noticed on MacRumors that a new nvidia card is going to be offered as an upgrade next month. Sigh. I think I'm happy enough with this one to ignore the nVidia offering. I hope 10.5.7 comes out soon.
    Stuart

  • How Do I use an Ati Radeon 4870 HD for 3 Monitors

    I am new to the Apple world and community.  I recently got a new job that requires me to use a Mac Pro.  OS X version 10.6.8.  2.66 ghz dual xeon and 32 GB of ram.  It has a ATI Radeon 4870 HD.  I can run 2 monitors fine using the DVI and Mini DV port ( Using a convertor from apple. ).  When I try to use the 2 other HDMI ports for my third monitor, Mac OS wont detect it.  The wierd thing is some of the images from certain apps show on the 3rd Monitor. 
    Under graphics information it shows the Radeon 4870.  Under PCIe information it shows the same card.  On the back of my machine I have 2 HDMI slots and another lower down with Mini DV and DVI.
    The Displays I am running are 3 HP LP2475w Monitors.  Running in DVI mode with one converted to Mini DV.  The 3rd non working is running in DVI to HDMI but it can be run Straight HDMI if need.  Ive tried alot of configuration settings and I can't get the HDMI port to be detected by MAC OS.  Ive plugged one in at a time and just the HDMI do not detect.
    Please let me know what information is needed to help troubleshoot this better.

    A 5770 is $249 or slightly less and in the same dept to me as replacing hard drives, adding some RAM in order to work and because my understanding is it was the first card to support 3 monitors.
    The 5770 only requires 10.6.5+ - and the 4,1 had way too many issues with 10.5.7/10.5.8
    The 4870 may or may not provide what you need for the software you run, even though 3 yr old machine but 4 yr old plus video card.
    flashing:
    http://boeglin.org/blog/index.php?entry=entry090918-031702
    4870 vs GTX 285 that came out at that time also
    http://www.geek.com/articles/games/macpro-whats-better-ati-radeon-4870-or-nvidia -gtx-285-20090720/
    The default card was Nvidia GT120 and req'd no power cables and popular way to support more displays.
    People were running DUAL 4870s to support 3rd monitor though back then:
    http://forums.macrumors.com/showthread.php?t=665034&page=10

  • MacBook suddenly won't detect my display, Using Mini Display Port to VGA?

    MacBook suddenly won't detect my display, Using Mini Display Port to VGA?

    dohdoh1985, I have the exact same problem also! I recently bought a 42" RCA LCD TV. I connected my MacBook Pro to my TV using a Dynex Mini DisplayPort to HDMI adapter that I got from BestBuy. It worked great until I upgraded to Mac OS 10.6.4 and then it suddenly stopped working. Same TV, same settings, same cables, same adapter. Nothing changed since the last time it worked except that my OS was upgraded to 10.6.4, so i am assuming that is the culprit. The symptoms are EXACTLY the same as what dohdoh1985 described; when I plug in the TV, the laptop display flashes (3 times) as though it is detecting an external display and the picture on the TV briefly goes from blue to black for about 1 second then back to blue. The TV does not appear in the display menu / control panel and there is no sign that the MacBook detected it. I went through the usual troubleshooting steps (reset PRAM, checked connections, tv settings, etc) but nothing worked. Other HDMI sources (i.e. Blu-ray player) work fine on the TV using the same HDMI cable on the same port so there is nothing wrong with the cable, the TV or the TV's input settings.
    Meanwhile, I can still connect my MacBook to my external ViewSonic monitor at work without any problems. It's just the TV that's not working.
    I cancelled my cable subscription a while ago since I only watch shows online nowadays and this was my only way of watching TV shows, so I'm quite upset.
    Apple, please help!

  • Just a feedback re Ati Radeon 4870 HD  512mb (from Apple UK Website)

    I know lots of people have been asking if this card works on 2006 Mac Pros V.1.1.
    Well I took the plunge and purchased one fitted it into my MP with leopard O/S
    and away it went no problemo as they say Sinc doing this I have updated my
    O/S to Snow Leopard and the card run brilliantly with it. I hope this helps
    clarify that this card will work with V1.1 despite what Apple state in their
    website advertisement.
    Happy computing Denis

    A 5770 is $249 or slightly less and in the same dept to me as replacing hard drives, adding some RAM in order to work and because my understanding is it was the first card to support 3 monitors.
    The 5770 only requires 10.6.5+ - and the 4,1 had way too many issues with 10.5.7/10.5.8
    The 4870 may or may not provide what you need for the software you run, even though 3 yr old machine but 4 yr old plus video card.
    flashing:
    http://boeglin.org/blog/index.php?entry=entry090918-031702
    4870 vs GTX 285 that came out at that time also
    http://www.geek.com/articles/games/macpro-whats-better-ati-radeon-4870-or-nvidia -gtx-285-20090720/
    The default card was Nvidia GT120 and req'd no power cables and popular way to support more displays.
    People were running DUAL 4870s to support 3rd monitor though back then:
    http://forums.macrumors.com/showthread.php?t=665034&page=10

  • Imac running Yosemite won't detect external display

    I previously was using a 2008 iMac desktop and running OS X Yosemite. I was using dual monitors (other monitor being Insignia brand) and everything worked fine. Since this was an earlier mac version, I was using the Mini DVI to VGA Adapter to connect. Last week, I got a brand new iMac (Mid 2014 version). I am running OS X Yosemite as well, but now it won't detect any displays. I'm now using the Thunderbolt cable to connect so I wonder if that has anything to do with it. But I have used that same Thunderbolt cable before on my macbook and it worked just fine.
    I've tried restarting, resetting the PRAM and everything. I don't know what else to do. Help!

    Thanks for the reply, but tried everything and it still won't work. Rebooted, installed updates, cleared PRAM, everything. It will not detect the displays at all. Maybe there is something wrong with my VGA cable.

  • My mid-2010 10.8.2 iMac won't detect external displays.

    My mid-2010 10.8.2 iMac won't detect external displays. I've tried using a third-party minidisplay port to DVI adapter, as well as an Apple-brand minidisplay port to VGA adapter. The monitor I'm using is a Dell SP2008WFPt. It is a functional monitor. I've tried resetting the PRAM, repairing my disk permissions, rebooting, and doing all sorts of wacky stuff with the order I plug things in. Is there a solution? It seems like lots of folks are having the same problem.
    Thanks! This is really starting to make me angry.

    If 10.7.0 or later...
    Bootup holding CMD+r, or the Option/alt key to boot from the Restore partition & use Disk Utility from there to Repair the Disk, then Repair Permissions.
    If that doesn't help Reinstall the OS.

  • Ati Radeon 4870

    Does anyone know if the ATI Radeon 4870 will fit and work inside of a B/W G3? I heard someone did put one in and it works great.

    Are you playing troll again, or are you asking a serious question?

  • ATI Radeon 4870 on K9AGM2-L ?

    Hello, I am planning to buy a new ATI radeon 4870 video card. But I need at least 2 SATA because I am using 2 SATA HDDs. It is a double slot video card solution and I see it is long...Does anyone have such card installed on this mobo MSI K9AGM2-L? Does it cove all the SATA connectors? Thanks.

    Thanks I have found some dimensions of the ATI card: http://forums.gameon.co.uk/showthread.php?p=381274
    And as I measured it will definitely be all over 4 SATA connectors. So everybody that wants a double slot video card and in length over 21cm will need those right angel SATA cables. When I will get them and also the ATI 4870 I will post a picture here. I hope it will fit even with those cables... 
    I measured it in my case and probably it would fit - the ATI radeon 4870 + Those 90°SATA cables
    Ok So I finally bought everything what I needed,  but I have now Gainward ATI radeon 4850 GS instead of mentioned 4870. 4850 (9,25") is slightly smaller than 4870 (9,5"). With difficulties I have installed my card into the microATX mobo, when you have double slot videocard you CANNOT use any SATA connector on the MOBO! As you can see on the pictures below it just fits with the 90°SATA cables, BUT the plastic cover on the cooler is thinner than the card and when I pull out the card some condensers are bent on that side where are the SATAs...
    It is definitely a good idea to buy a standart ATX motherboard in this case...
    By Ivanhoe_sk
    By Ivanhoe_sk
    By Ivanhoe_sk
    By Ivanhoe_sk

  • ATI Radeon 4870 in a MacPro 2,1 not working!

    Recently I switched out my ATI Radeon 1900 for an upgrade to the ATI Radeon 4870... Apple states that the 4870 is not compatible with the MacPro 2,1... But numerous "Mac-heads" commented on the Q&A page on the Apple Store for the ATI Radeon HD 4870 that it was compatible. So I order it...
    The switch out was extremely easy the ATI Radeon 4870 had 2 power cables to connect as oppose to 1 for the 1900. The Graphic card worked smooth at first... then I noticed when I was in icon view the icons had a poor quality image. Today with the download of Adobe Flash 10.1 the quality of every flash image is poor just like it was in icon view...now all the YouTube videos look like they have static going through them... For the older population (+40) the video looks like the reception of UFH channel on a TV from the 70's...before there was cable or satellite dishes... when a remote was called a clicker! Just too much snow on the images!
    Does anyone have an idea to correct this? Is there a way to download ATI Radeon 4870 Mac drivers? I know that they are built into the 10.6 (Snow Leopard), but since this is a MacPro 2,1 will it known to have updated drivers downloaded to this computer? or am I a "pinhead" for have listened to these "Mac-heads"... Is there a way to go back to Adobe Flash 10.0? Should I just swap-out the 4870 for the 1900 and make the 4870 a $350.00 paperweight... Have to admit that the 4870 is completely quite... no noise what so ever... can not even hear the fan.
    Thanks

    Assuming it's the card made for Mac (and not a PC card that's been altered/flashed to work in a Mac Pro), it really ought to work.
    Drivers for the card aren't available separately anymore. You're absolutely right, they're built into Snow Leopard, but they should also be built into Leopard as well. It's possible that something mucked up the driver installation, to check it simply download and install the 'combo updater' for the most recent version of Mac OS that you're using.
    For Leopard, get the 10.5.8 combo updater here http://support.apple.com/kb/DL866
    For Snow Leopard, get 10.6.3 v1.1 combo updater here http://support.apple.com/kb/DL1017
    Hope that helps!

  • What is the benefit of up grading from ATI Radeon 1900 to ATI Radeon 4870?

    What is the benefit of up grading from ATI Radeon 1900 to ATI Radeon 4870?. Will the average user that does not use video game see the difference? What programs would I see the benefit in?
    Thanks!

    Installing 3 NVIDIA GeForce GT 120 will allow you to use up to six monitors. Installing the Radeon 4870 will give you some benefits in certain video/graphic editing programs. If all you do is email, web surfing and non-graphic intensive stuff than the NVIDIA GeForce GT 120 is adequate.

  • ATI Radeon 4870 Graphic Card - Minor Problems with Icon View

    I have a MacPro 2,1 (early 2007)... Recently upgrade graphic card from ATI Radeon X1900 to ATI Radeon 4870... Works fine, except when viewing files in "icon view"... The icons are "fuzzy-like" some pixels are missing... This is seen in any size icon... small or large... or views no problem... cover view, list view, or column view...Does anyone have a working solution for this problem in icon view... Thanks

    If ATi didn't specify the card you bought is designed for your Mac, then it's strictly the PC version and is incompatible with OS X. It may work correctly in Bootcamp for Windows, but not for OS X.
    Your best option would be to return the 4350 and purchase a "designed for Mac" video card by ATi or nVidia cards offered on the Apple online store.

  • Mac Pro 1.1/ATI Radeon 4870 HD won't detect monitor on boot/sleep

    Hey there all,
    First post.
    Been following for a while now.
    I'm running into a problem with my MacPro..
    When I boot the tower up, the chime rings [through the built-in speaker--not my connected and powered externals]
    The video signal will sometimes show up just for a couple of seconds while the Gray-Gear Screen loads and then will instantly loose signal and continue to not detect the display until I suffocate the tower, pull out the DVI adapter and reboot without the display connected until I can hear the volume adjust through my external speakers. . I can then proceed to plug in the adapter and the computer works as it should-- that is, until I put it to sleep and then I must start the whole process over.
    I am getting sick of having to do my usual ritual in order to use this machine.
    Could it a driver/capatabliliy thing? Or perhaps an installed-OS malfunction?
    Is there a way to tell if the card has been flashed to work on the Pro?
    Any help would be greatly appreciated.
    Thanks for looking into this.
    Cheers.
    -B

    Okay.. so I did the smc reset. No luck.
    I've contacted the seller that I purchased the computer from and he told me that the tower had previous trouble with the card that it came with.. he didn't specify which card, but he's made arrangements for a 3rd party seller to send me an ATI Radeon X1900 with 512mb RAM [same capacity I had before in the Radeon 4870 HD] 
    Is there a significant difference between these two cards?
    Should I have the 3rd party send me the same 4870 HD model? and if so, would the problem persist?
    Thanks again, and any help is much appreciated.
    Cheers.
    -B

  • Won't detect second screen

    My xorg.conf can be seen here: http://pastebin.com/m25cafd6d
    My problem is that i can get mergedFB working, but the auto monitor detection always fails and DRI/AIXGL get's disabled.
    You can see my X log file here: http://pastebin.com/mfc2d2c7
    The part i think is most relevant being this:
    (II) RADEON(0): Connector0: DDCType-2, DACType-1, TMDSType-0, ConnectorType-3
    (II) RADEON(0): Connector1: DDCType-3, DACType-0, TMDSType--1, ConnectorType-2
    (**) RADEON(0): MonitorLayout Option:
    Monitor1--Type Auto, Monitor2--Type CRT
    (II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
    (II) RADEON(0): I2C device "DDC:ddc2" removed.
    (II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
    (II) RADEON(0): I2C device "DDC:ddc2" removed.
    (II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
    (II) RADEON(0): I2C device "DDC:ddc2" removed.
    (II) RADEON(0): DDC Type: 3, Detected Type: 0
    (II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
    (II) RADEON(0): I2C device "DDC:ddc2" removed.
    (II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
    (II) RADEON(0): I2C device "DDC:ddc2" removed.
    (II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
    (II) RADEON(0): I2C device "DDC:ddc2" removed.
    (II) RADEON(0): DDC Type: 2, Detected Type: 0
    (II) RADEON(0):
    (II) RADEON(0): Primary:
    Monitor -- CRT
    Connector -- VGA
    DAC Type -- Primary
    TMDS Type -- NONE
    DDC Type -- VGA_DDC
    (II) RADEON(0): Secondary:
    Monitor -- NONE
    Connector -- DVI-I
    DAC Type -- TVDAC/ExtDAC
    TMDS Type -- Internal
    DDC Type -- DVI_DDC
    (II) RADEON(0): PLL parameters: rf=2700 rd=60 min=12000 max=35000; xclk=14300
    (WW) RADEON(0): Failed to detect secondary monitor, MergedFB/Clone mode disabled
    (II) RADEON(0): MergedFB mode forced on.
    The second monitor is actually another VGA CRT, and is working in mergedfb mode, but AIGLX/DRI won't work.
    Last edited by Ruckus (2007-10-08 21:17:41)

    unable to open a program on my laptop because it keeps trying to open in the other screen
    That happens to me with PowerShell on my Surface RT.  No matter how many times I move it to the Surface display it opens off screen (as if it had originally last been open on the big monitor when I had it attached.)  I can't use the keyboard
    shortcut which would bring it back when it would have been attached (e.g. Win-CursorRight) because then it is not seen as being on another monitor.  However, what I can do--as always, even before multi-screen windows were available--is use the window's
    Move command.  E.g. with keyboard focus on the hidden window you can just press Alt-Space M.  Or you can right-click on its thumbnail in the Taskbar for the same effect.  You then need to use a cursor key to engage the mouse pointer with
    the window's Title bar and change its icon to drag it back.  If you don't have mouse you just have to remember which direction to bring it back and keep pressing on the arrow key.  It's more amusing than irritating when you know how to work around
    it but I suppose if it was annoying enough you could always hook up your other monitor again and then move the windows back to the primary display.
    FYI
    Robert Aldwinckle

  • ATI Radeon Card with 2 DVI LCD Display

    At last, I made a big step forward by purchasing the new MP. I already have a 23" Apple Display and intend to buy another DVI display (non Apple). How do I connect both LCD screen to the ATI Radeon card? Do I need to purchase any adaptor?

    Hi SamsonSimon;
    Here are the specs on the ATI Radeon card;
    ATI Radeon HD 4870 includes two video ports: one Mini DisplayPort and one dual-link DVI port. This allows you to connect both the 24-inch Apple LED Cinema Display or another Mini DisplayPort-based display, and a DVI-based display such as the 30-inch Apple Cinema HD Display. Display adapters are available to connect VGA displays.
    Since it says it has two ports, one Mini DisplayPort and one dual-link DVI port, it would seem you are going to need an adapter for the second LCD screen.
    Allan

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